CN106921977B - A service flow-based service quality planning method, device and system - Google Patents

Abstract

The embodiment of the present invention discloses a service flow-based service quality planning method and device. The method includes: receiving an instantiation request for an NS; determining a data center location for VNF deployment according to the remaining resources of each data center; Send a resource reservation request to the VIM, and the resource reservation request is used to indicate the network resources required for reserving VL and VNF; when receiving the resource reservation success response information fed back by the VIM in response to the resource reservation request, send a response message to the VIM. VL and VNF instantiation requests; receive instantiation response information fed back by the VIM in response to the VL and VNF instantiation requests. By adopting the embodiment of the present invention, the service quality of the business flow can be guaranteed by adjusting the data center position of the virtual network function.

Description

A service flow-based service quality planning method, device and system

technical field

The present invention relates to the field of communication technologies, and in particular, to a service flow-based service quality planning method, device and system.

Background technique

A unified network platform that utilizes dynamic and secure network slicing to support connected communication services with different functions and quality of service (QoS) is a fundamental capability of 5G networks. Network slicing, or "5G slicing", supports a communication service of a specific connection type and provides control plane and user plane specific processing methods for this service. A 5G slice consists of a set of 5G network functions and a specific RAT setup in order to support a specific use case or business model. Network slicing adopts virtualization technology, which realizes the isolation between different slices in terms of resources, and virtualizes different multiple networks according to diverse needs. Network Functions Virtualisation (NFV) utilizes virtualization technology to allocate required virtual resources (virtual computing, storage, network) to network applications through the Network Functions Virtualization Orchestrator (NFV Orchestrator, NFVO), Automatic deployment to virtual machines in the data center. Taking the schematic structural diagram of the NFV Management and Orchestration (NFV MANO) architecture shown in FIG. 1A as an example, the NFV MANO may include NFVO, a Virtualised Network Function Manager (VNFM), and a virtual network function manager (VNFM). Infrastructure Manager (Virtualised Infrastructure Manager, VIM). Among them, NFVO is used for lifecycle management of network communication across multiple data centers, orchestration of resource usage, and adoption of policies for usage or prioritization of multiple virtual network functions (Virtualisation Network Functions, VNF) instances of multiple data centers. coexist. VNFM is used for lifecycle management of VNF instances. VIM is used for the control and management of computing, storage and network resources of Network Functions Virtualisation Infrastructure (NFVI). A service performed based on NFVI is called a network service (NS), and it includes all the elements that make up the network service. In order to describe the network service and the elements that make up the network service, cells containing the above-mentioned elements are introduced. In the top-level network service cells, there are four cells: VNF cells, Physical Network Functions (PNF) cells, Virtual Link (Virtual Link, VL) cells, and VNF Forwarding Diagram (VNF Forwarding). Graph, VNFFG) cells. When the above NFV MANO architecture is used for network slicing, the NS/VNFFG instance life cycle management process lacks the deployment process across multiple data centers, resulting in the lack of QoS guarantee methods and processes in the NS/VNFFG instance life cycle management process. delay has a great impact.

SUMMARY OF THE INVENTION

The present application provides a service flow-based service quality planning method and device, which can ensure the service quality of the service flow by adjusting the location of the virtual network function.

A first aspect provides a service flow-based quality of service planning method, the method is applied to NFVO, and the method includes:

NFVO receives instantiation requests for NS.

NFVO determines the data center location for VNF deployment based on the remaining resources of each data center.

The NFVO sends a resource reservation request to the VIM, and the resource reservation request is used to indicate the network resources required by the VL and the VNF to be reserved.

When receiving the resource reservation success response information fed back by the VIM in response to the resource reservation request, the NFVO sends an instantiation request for the VL and the VNF to the VIM.

The NFVO receives the instantiation response information fed back by the VIM in response to the instantiation request for the VL and the VNF.

In this technical solution, all VLs of an NS form a network link topology. VNFFG can refer to other cells in network services, such as PNF, VL, VNF. The VNFFG also includes a network networking path element, which is used to describe the business chain of the VNFFG. NS, VNF and PNF cells contain connection point attributes to describe the relationship between NS, VNF or PNF and VL. Cells can be used in two different contexts: a descriptor of a directory or template, or an instance record in NFV. NFVO can record the number of data centers under its jurisdiction and the location of each data center. NFVO can also record the relationship between VIMs and data centers. For example, different VIMs manage different data centers, that is, one VIM manages one data center, or one VIM manages at least two data centers, or if there is one VIM to manage one data center, There is also a VIM that manages at least two data centers. NFVO can also record the delay index that can be achieved by each VL based on location. The delay generated by VL can include: VL delay between different hosts (Hosts) in each data center, and VL between the same Host in each data center. Latency, typical latency between different data centers, and typical latency from data center entry to PNF. After receiving the instantiation request for NS or VNFFG, NFVO can determine the service flow instance according to the parameter information carried in the instantiation request, and determine the data center location for VNF deployment according to the remaining resources of each data center. The location of the deployed data center, estimate the delay generated by the service flow instance, and send a resource reservation request to the VIM. VL, VNF, and VPN are instantiated, and the QoS of service flow can be guaranteed by adjusting the data center location of VNF.

In a possible design, the instantiation request may carry parameter information, and after receiving the instantiation request for the NS, the NFVO may determine the service flow instance according to the parameter information.

In a possible design, the NFVO determines the service flow instance according to the parameter information, which may specifically be: NFVO determines the deployment template in the Network Service Descriptor (NSD) of the NS, and the deployment template includes different The instance identification information of the VNF instance, and the service flow instance is determined according to the instance identification information in the deployment template.

In a specific implementation, the NFVO may allocate different instance identification information to different VNF instances of the same type in each deployment template (Flavor) in the NSD. Then, when the instantiation request received by the NFVO carries the description block identification information of the NSD, the NSD corresponding to the description block identification information can be determined, and the service flow instance can be determined according to the instance identification information in the deployment template of the NSD.

The elements constituting the NS may include NSD, and the NSD is a template that may be used to indicate the description information block referenced by the NS.

In a possible design, the NFVO determines the service flow instance according to the parameter information. Specifically, the NFVO may determine the deployment template in the NSD of the NS, and the deployment template includes the instance identification information for different VL instances of the same type. Instance identification information to determine the service flow instance.

In specific implementation, NFVO can add VL to each Flavor of NSD, and assign different instance identification information to different VL instances of the same type. Then, when the instantiation request received by the NFVO carries the description block identification information of the NSD, the NSD corresponding to the description block identification information can be determined, and the service flow instance can be determined according to the instance identification information in the deployment template of the NSD.

In a possible design, the NFVO determines the service flow instance according to the parameter information, which may be specifically: NFVO determines the NFP in the virtual network function forwarding graph information description block (VNFFG Descriptor, VNFFGD), and the NFP is used to indicate the deployment template in the NS , and determine the service flow instance according to NFP.

In a specific implementation, the NSD can be used to indicate the VNFGFD referenced by the NS, and the VNFFGD can define a service flow instance NFP for each flavor in the NSD, where the CP is the connection point between the VL instance and the VNF instance. The NFP described in this way is a definite service flow instance. For example, it can describe that a base transmitter station (Base TransceiverStation, BTS) needs to be connected to a specified base station controller (Base Station Controller, BSC), or a BSC needs to be connected. to the designated mobile switching center (Mobile Switching Center, MSC). Then, when the instantiation request received by NFVO carries the description block identification information of VNFGFD, the VNFGFD corresponding to the description block identification information can be determined, and then the NFP in the VNFFGD can be determined, and the service flow instance can be determined according to the NFP.

In a possible design, the NFVO determines the service flow instance according to the parameter information. Specifically, the NFVO may determine the demand parameters of the NFP in the VNFGFD. The demand parameters include delay, bandwidth, and jitter, and determine the service flow instance according to the demand parameters.

In specific implementation, a requirement parameter of end-to-end QoS may be added in the NFP of VNFGFD in advance, and the requirement parameter may include delay, bandwidth, and jitter. Then the NFVO can determine the demand parameters of the NFP in the VNFFGD, and determine the service flow instance according to the demand parameters.

In a possible design, after NFVO determines the data center location for VNF deployment based on the remaining resources of each data center, the following operations can also be performed:

According to the location of the data center, estimate the delay generated by the service flow instance, and the service flow instance includes at least one VNFFG.

When the delay of each VNFFG meets the corresponding delay requirement, a resource reservation request is sent to the virtual infrastructure manager.

When the delay of at least one VNFFG does not meet the corresponding delay requirement, determine the location of the data center deployed on the VNF according to the remaining resources of each data center.

In a possible design, when the service flow instance includes at least two service flow NFP instances, NFVO determines the location of the data center deployed on the VNF according to the service flow instance, which may be specifically:

Sort each service flow NFP instance according to the delay required by at least two service flow NFP instances.

Obtain the deployment plan of the service flow instance that meets the minimum latency.

In the deployment scheme of the service flow instance that satisfies the minimum delay, the deployment scheme of other service flow instances other than the service flow instance that satisfies the minimum delay is obtained.

Determine the location of the data center where the VNF is deployed according to the obtained deployment scheme of service flow instances other than the service flow instance that meets the minimum delay.

In the specific implementation, when the service flow instances include the first service flow NFP instance, the second service flow NFP instance, and the third service flow NFP instance, and the delays required by each service flow NFP instance are 1ms, 100ms, and 10ms respectively, then NFVO Each service flow NFP instance can be sorted according to the delay required by each service flow NFP instance. For example, the service flow NFP instance with the smallest required delay is arranged at the top, that is, the sorted service flow NFP instance is: first. A service flow NFP instance, a third service flow NFP instance, and a second service flow NFP instance.

Further, the smaller the delay required by the service flow NFP instance, the higher the requirement for the deployment location of the VNF. NFVO can obtain the deployment scheme of the service flow instance that satisfies the minimum delay through the traversal method, that is, obtain the deployment scheme that satisfies the NFP instance of the first service flow, and obtain the deployment scheme that satisfies the NFP instance of the first service flow and satisfies the third service flow. Deployment scenarios for NFP instances. Optionally, after the NFVO obtains the deployment scheme that satisfies the NFP instance of the third service flow in the deployment scheme that satisfies the NFP instance of the first service flow, it can also obtain the deployment scheme that satisfies the NFP instance of the third service flow and that satisfies the second service flow. Deployment scenarios for NFP instances.

Further, the NFVO may determine the location of the data center deployed on the VNF according to the obtained deployment scheme of the service flow instance that satisfies other delays other than the minimum delay. For example, after the NFVO obtains the deployment scheme that satisfies the NFP instance of the third service flow from the deployment scheme that satisfies the NFP instance of the first service flow, it can determine the data to be deployed on the VNF according to the obtained deployment scheme that satisfies the NFP instance of the third service flow. Central location. For another example, after the NFVO obtains the deployment scheme that satisfies the NFP instance of the second service flow from the deployment scheme that satisfies the NFP instance of the third service flow, it can determine the deployment scheme for the VNF according to the obtained deployment scheme that satisfies the NFP instance of the second service flow. Data center location.

In a possible design, when the service flow instance includes at least two service flow NFP instances, NFVO determines the location of the data center deployed on the VNF according to the service flow instance, which may be specifically:

Sort each service flow NFP instance according to the hop count of at least two service flow NFP instances.

Get the deployment scheme of the service flow instance that meets the maximum hop count.

In the deployment scheme of the service flow instance that satisfies the maximum hop count, obtains the deployment scheme of other service flow instances other than the service flow instance that satisfies the maximum hop count.

Determine the location of the data center where the VNF is deployed according to the obtained deployment scheme of the service flow instance other than the service flow instance that meets the maximum hop count.

In specific implementation, when the service flow instances include a first service flow NFP instance, a second service flow NFP instance, and a third service flow NFP instance, and the hops of each service flow NFP instance are 10 hops, 1 hop, and 5 hops respectively, then NFVO can sort each service flow NFP instance according to the hop count of each service flow NFP instance. For example, the service flow NFP instance with the largest hop count is arranged at the top, that is, the sorted service flow NFP instance is: the first service flow NFP instance, the third service flow NFP instance, and the second service flow NFP instance.

Further, the larger the number of hops of the NFP instance of the service flow, the higher the requirements for the deployment location of the VNF. NFVO can obtain the deployment scheme of the service flow instance that satisfies the maximum number of hops through the traversal method, that is, obtain the deployment scheme that satisfies the NFP instance of the first service flow, and obtain the deployment scheme that satisfies the NFP instance of the first service flow and satisfies the third service flow. Deployment scenarios for NFP instances. Optionally, after the NFVO obtains the deployment scheme that satisfies the NFP instance of the third service flow in the deployment scheme that satisfies the NFP instance of the first service flow, it can also obtain the deployment scheme that satisfies the NFP instance of the third service flow and that satisfies the second service flow. Deployment scenarios for NFP instances.

Further, the NFVO may determine the location of the data center deployed on the VNF according to the obtained deployment scheme of the service flow instance that satisfies other hops than the maximum hops. For example, after the NFVO obtains the deployment scheme that satisfies the NFP instance of the third service flow from the deployment scheme that satisfies the NFP instance of the first service flow, it can determine the data to be deployed on the VNF according to the obtained deployment scheme that satisfies the NFP instance of the third service flow. Central location. For another example, after the NFVO obtains the deployment scheme that satisfies the NFP instance of the second service flow from the deployment scheme that satisfies the NFP instance of the third service flow, it can determine the deployment scheme for the VNF according to the obtained deployment scheme that satisfies the NFP instance of the second service flow. Data center location.

In a possible design, when the service flow instance includes at least two service flow NFP instances, NFVO determines the location of the data center deployed on the VNF according to the service flow instance, which may be specifically:

Sort each service flow NFP instance according to the delay required by at least two service flow NFP instances.

Sort service flow NFP instances with the same delay according to the number of hops of at least two service flow NFP instances.

Obtain the deployment scheme of the service flow instance that satisfies the minimum delay and the maximum hop count, and uses the obtained deployment scheme of the service flow instance that satisfies the minimum delay and the maximum hop count as the first deployment scheme.

In the first deployment scheme, obtain the deployment scheme of other service flow instances other than the service flow instance that satisfies the minimum delay and the maximum hop count, and use the obtained service flow other than the service flow instance that satisfies the minimum delay and the maximum hop count. The deployment scheme of the instance is used as the second deployment scheme.

According to the second deployment scheme, the location of the data center to be deployed on the VNF is determined.

In specific implementation, when the service flow instances include the first service flow NFP instance, the second service flow NFP instance, the third service flow NFP instance, and the fourth service flow NFP instance, the delay required by each service flow NFP instance is 1ms respectively. , 100ms, 10ms, and 1ms, the hops of each service flow NFP instance are 10 hops, 1 hop, 5 hops, and 5 hops, respectively, then NFVO can analyze the service flow according to the delay and hop count required by each service flow NFP instance. The NFP instances are sorted. For example, the service flow NFP instance with the minimum required delay and the maximum number of hops is arranged at the top, that is, the arranged service flow NFP instances are: the first service flow NFP instance, the fourth service flow NFP instance, The third service flow NFP instance and the second service flow NFP instance.

Further, NFVO can obtain the deployment scheme of the service flow instance that satisfies the minimum delay and the maximum number of hops through the traversal method, that is, to obtain the deployment scheme that satisfies the NFP instance of the first service flow, and that will meet the deployment scheme of the NFP instance of the first service flow. As the first deployment solution, a deployment solution that satisfies the fourth service flow NFP instance is obtained in the first deployment solution, and the deployment solution that satisfies the fourth service flow NFP instance in the first deployment solution is used as the second deployment solution. Optionally, after obtaining the deployment solution that satisfies the NFP instance of the fourth service flow in the first deployment solution, the NFVO may also obtain the deployment solution that satisfies the NFP instance of the third service flow in the deployment solution that satisfies the NFP instance of the fourth service flow, The deployment scheme that satisfies the NFP instance of the third service flow among the deployment schemes that satisfy the NFP instance of the fourth service flow is taken as the second deployment scheme. Optionally, after obtaining the deployment solution that satisfies the NFP instance of the third service flow in the deployment solution that satisfies the NFP instance of the fourth service flow, the NFVO may also obtain the deployment solution that satisfies the NFP instance of the third service flow in the deployment solution that satisfies the NFP instance of the third service flow. For the deployment scheme of the NFP instance, the deployment scheme that satisfies the NFP instance of the second service flow among the deployment schemes that satisfy the NFP instance of the third service flow is taken as the second deployment scheme.

Further, the NFVO may determine the location of the data center to be deployed on the VNF according to the second deployment scheme. For example, the second deployment scheme is a deployment scheme that satisfies the fourth service flow NFP instance in the first deployment scheme, and the NFVO may determine the location of the data center to deploy the VNF according to the second deployment scheme. For another example, the second deployment scheme is a deployment scheme that satisfies the NFP instance of the third service flow among the deployment schemes that satisfy the NFP instance of the fourth service flow, and the NFVO may determine the location of the data center for VNF deployment according to the second deployment scheme. For another example, the second deployment scheme is a deployment scheme that satisfies the NFP instance of the second service flow among the deployment schemes that satisfy the NFP instance of the third service flow, and the NFVO may determine the location of the data center for VNF deployment according to the second deployment scheme.

In a possible design, when the service flow instance includes at least two service flow NFP instances, NFVO determines the location of the data center deployed on the VNF according to the service flow instance, which may be specifically:

Sort each service flow network forwarding path instance according to the hop count of at least two service flow network forwarding path instances.

According to the delay required by at least two service flow network forwarding path instances, the service flow network forwarding path instances with the same number of hops are sorted.

The deployment scheme of the service flow instance that satisfies the maximum hop count and the minimum delay is obtained, and the obtained deployment scheme of the service flow instance that meets the maximum hop count and the minimum delay is used as the first deployment scheme.

In the first deployment scheme, obtain the deployment scheme of other service flow instances other than the service flow instance that satisfies the maximum hop count and the minimum delay, and use the obtained service flow other than the service flow instance that meets the maximum hop count and the minimum delay. The deployment scheme of the instance is used as the second deployment scheme.

According to the second deployment scheme, the location of the data center where the virtual network function is deployed is determined.

In specific implementation, when the service flow instances include a first service flow NFP instance, a second service flow NFP instance, a third service flow NFP instance, and a fourth service flow NFP instance, the hops of each service flow NFP instance are 10 hops, 1 hop, 5 hops, and 5 hops. The delays required by NFP instances of each service flow are 1ms, 100ms, 10ms, and 1ms, respectively. Then NFVO can adjust the number of hops and delays required by each service flow NFP instance. The NFP instances are sorted. For example, the service flow NFP instance with the largest required number of hops and the minimum delay is arranged at the top, that is, the arranged service flow NFP instances are: the first service flow NFP instance, the fourth service flow NFP instance, The third service flow NFP instance and the second service flow NFP instance.

Further, NFVO can obtain the deployment scheme of the service flow instance that satisfies the minimum delay and the maximum number of hops through the traversal method, that is, to obtain the deployment scheme that satisfies the NFP instance of the first service flow, and that will meet the deployment scheme of the NFP instance of the first service flow. As the first deployment solution, a deployment solution that satisfies the fourth service flow NFP instance is obtained in the first deployment solution, and the deployment solution that satisfies the fourth service flow NFP instance in the first deployment solution is used as the second deployment solution. Optionally, after obtaining the deployment solution that satisfies the NFP instance of the fourth service flow in the first deployment solution, the NFVO may also obtain the deployment solution that satisfies the NFP instance of the third service flow in the deployment solution that satisfies the NFP instance of the fourth service flow, The deployment scheme that satisfies the NFP instance of the third service flow among the deployment schemes that satisfy the NFP instance of the fourth service flow is taken as the second deployment scheme. Optionally, after obtaining the deployment solution that satisfies the NFP instance of the third service flow in the deployment solution that satisfies the NFP instance of the fourth service flow, the NFVO may also obtain the deployment solution that satisfies the NFP instance of the third service flow in the deployment solution that satisfies the NFP instance of the third service flow. For the deployment scheme of the NFP instance, the deployment scheme that satisfies the NFP instance of the second service flow among the deployment schemes that satisfy the NFP instance of the third service flow is taken as the second deployment scheme.

Further, the NFVO may determine the location of the data center to be deployed on the VNF according to the second deployment scheme. For example, the second deployment scheme is a deployment scheme that satisfies the fourth service flow NFP instance in the first deployment scheme, and the NFVO may determine the location of the data center to deploy the VNF according to the second deployment scheme. For another example, the second deployment scheme is a deployment scheme that satisfies the NFP instance of the third service flow among the deployment schemes that satisfy the NFP instance of the fourth service flow, and the NFVO may determine the location of the data center for VNF deployment according to the second deployment scheme. For another example, the second deployment scheme is a deployment scheme that satisfies the NFP instance of the second service flow among the deployment schemes that satisfy the NFP instance of the third service flow, and the NFVO may determine the location of the data center for VNF deployment according to the second deployment scheme.

It should be noted that NFVO can pre-set the priorities of the above four solutions for determining the location of the data center deployed by the VNF. For example, the solution for sorting service flow NFP instances according to the delay has the highest priority and is the first priority; The priority of the scheme that sorts the NFP instances of the service flow according to the hop count is the second priority; the priority of the first scheme that sorts the NFP instances of the service flow according to the delay and the hop count is the third priority; And the priority of the second solution in which the NFP instances of the service flow are sorted by the number of hops is the fourth priority. If the solution with the first priority is implemented, the deployment solutions of other service flow instances other than the service flow instances that meet the minimum delay cannot be obtained from the deployment solutions of the service flow instances that meet the minimum delay, or the deployment solutions of other service flow instances other than the service flow instances that meet the minimum delay cannot be obtained. The deployment scheme of other service flow instances other than the service flow instance of the NFVO determines the data center location where the VNF is deployed, and NFVO can implement the scheme of the second priority. If the solution with the second priority is implemented, the deployment solutions of other service flow instances other than the service flow instances that meet the maximum hop count cannot be obtained in the deployment solution of the service flow instance that meets the maximum hop count, or the deployment plans of service flow instances that meet the maximum hop count cannot be obtained. The deployment scheme of other service flow instances other than the service flow instance of the NFVO determines the location of the data center where the VNF is deployed, and NFVO can implement the scheme of the third priority. If the solution with the third priority is implemented, the deployment solutions of other service flow instances other than the service flow instance meeting the minimum delay and the maximum hop number cannot be obtained in the deployment solution of the service flow instance that satisfies the minimum delay and the maximum hop count. , or it is impossible to determine the data center location for VNF deployment based on the deployment scheme of other service flow instances other than the service flow instance that meets the minimum delay and maximum hop count, NFVO can implement the fourth priority scheme.

Further, if the first priority scheme is implemented, NFVO determines the location of the data center deployed on the VNF according to the deployment scheme of other service flow instances other than the service flow instance that satisfies the minimum delay, then NFVO does not need to implement other determinations for the VNF. Scenario of the deployed data center location. If the second priority scheme is implemented, NFVO determines the location of the data center for VNF deployment according to the deployment scheme of other service flow instances other than the service flow instance that meets the maximum hop count, and NFVO does not need to implement other data for determining VNF deployment. Central location scheme. If the third-priority solution is implemented, NFVO determines the location of the data center to deploy the VNF according to the deployment solution of other service flow instances other than the service flow instance that satisfies the minimum delay and the maximum hop count, and NFVO does not need to implement other determinations. Scenarios for data center locations where VNFs are deployed. If the fourth priority scheme is implemented, NFVO determines the location of the data center deployed on the VNF according to the deployment scheme of other service flow instances other than the service flow instance that meets the maximum hop count and the minimum delay, and NFVO does not need to implement other determinations. Scenarios for data center locations where VNFs are deployed.

In a possible design, the NFVO sends a resource reservation request to the VIM, which can be as follows:

Through the resource reservation operation of the virtual resource management interface, a resource reservation request is sent to the VIM, so that the VIM can detect whether the network resources required for the VNF interconnection are available according to the data center location of the VNF. When the network resources required for the VNF interconnection are available When , the VIM reserves the network resources required for VNF interconnection, the VIM pre-tests the reserved network resources, and when the QoS of the VL meets the requirements, the VIM feeds back the resource reservation success response information.

In specific implementation, the NFVO can determine the data center location of the VL according to the data center location of the VNF. If two VNFs are deployed in the data center managed by the same VIM, the VIM can allocate the VL between the two VNFs to the data center location of the two VNFs, that is, the data center location of the VL is the same as the data center location of the VNF. If two VNFs are deployed in data centers managed by different VIMs, the Wide Area Network Infrastructure Manager (WIM) can assign data center locations to the VLs. Further, the NFVO can generate resource predictions through the virtual resource management interface. The reservation operation sends a resource reservation request to the VIM. The VIM detects whether the network resources required for the VNF interconnection are available according to the data center location of the VNF. When the network resources required for the VNF interconnection are available, the VIM reserves the network required for the VNF interconnection. Resource, the VIM pre-tests the reserved network resources, and when the QoS of the VL meets the requirements, the VIM feeds back the resource reservation success response information.

In a possible design, the NFVO sends a resource reservation request to the VIM, which can be as follows:

When the pre-allocated VNF instance list is determined, and the VNF instance list includes at least one VNF instance, it is detected whether the resources required for VNF instantiation are valid according to the data center location of the VNF.

When the resources required for VNF instantiation are available, a resource reservation request is sent to the VIM.

In one possible design, NFVO sends VIM an instantiation request for VL, which can be:

The VL network connection request is sent to the VIM through the application resource or update resource operation of the virtual resource management interface, so that the VIM instantiates the connection network required by the NS.

In a possible design, the NFVO sends the VIM an instantiation request for the VNF, which can be:

Through the application resource or update resource operation of the virtual resource management interface, a VNF network connection request is sent to the VIM, so that the VIM can connect to the external interface of the VNF, and connect the required virtual deployment unit (Virtualisation Deployment Unit, VDU) to the required connection of the NS network.

In the specific implementation, if all VNF instances are valid, for the VNF that has not been connected to the network, NFVO can request the VIM to connect the VNF to the network through the application resource or update resource operation of the virtual network resource management interface. For example, the NFVO can request the VIM to connect to the external interface of the VNF, or request the VIM to connect the required VDU to the NS's connectivity network, and the VIM can connect the required VDU to the network and confirm that the connection is complete.

In a possible design, after receiving the resource reservation success response information fed back by the VIM in response to the resource reservation request, the NFVO may also perform the following operations:

When the pre-allocated VNF instance list is determined and the VNF instance list includes at least one VNF instance, the location parameter information is added in the process of invoking the instantiated VNF operation of the VNF lifecycle management interface, and the location parameter information includes the data center location of the VNF , to instantiate the VNF.

In one possible design, NFVO could also do the following:

When a capacity expansion request or a capacity reduction request for the NS is received, the NS is expanded or reduced in capacity at the corresponding position of the network element related to the NS.

In the specific implementation, if the request to expand the NS is to apply for more resources for the NS, or the request to shrink the NS is to release part of the resources of the NS, NFVO can assume that the expansion or shrinking of the NS does not affect the network. The duration of the message processing by the element is the same as the duration of all service flows in the entire network. NFVO can expand or reduce the capacity of the NS at the corresponding position of the network element related to the NS. For example, if the capacity of the network element related to the NS is smaller than the preset threshold, the NFVO may add a network element of the same type at the location of the network element to realize the expansion of the NS.

In one possible design, NFVO could also do the following:

When a capacity expansion request for the NS is received, it is determined that the remaining resource amount of the data center where the VNF is located is less than a preset threshold.

Generate an instantiated request corresponding to NS.

In the specific implementation, if the remaining resources of the data center location of each network element corresponding to the NS is less than the preset threshold, NFVO can expand the capacity of the NS, in which the data center location of the original network element remains unchanged, and needs to be increased. The network element may be deployed through the service flow-based service quality planning method described in the first aspect.

In a possible design, after NFVO determines the data center location for VNF deployment based on the remaining resources of each data center, the following operations can also be performed:

Determine the data center location of the VL according to the data center location of the VNF.

In a possible design, NFVO determines the data center location of the VL according to the data center location of the VNF, which can be as follows:

When two VNFs are deployed in a data center managed by the same VIM, the data center location of the VL between the two VNFs is the same as the data center location of the two VNFs.

When two VNFs are deployed in data centers managed by different VIMs, the data center location of the VL between the two VNFs is determined by the WIM.

In a possible design, after NFVO determines the data center location for VNF deployment based on the remaining resources of each data center, the following operations can also be performed:

A resource reservation request is sent to the WIM, where the resource reservation request is used to instruct to reserve network resources required by a virtual private network (Virtual Private Network, VPN).

When receiving the resource reservation success response information fed back by the WIM in response to the resource reservation request, the instantiation request for the VPN is sent to the WIM.

Receive instantiation response information fed back by the WIM in response to the instantiation request for the VPN.

In a possible design, the NFVO sends a resource reservation request to the VIM, which can be as follows:

Send a resource reservation request to the WIM, so that the WIM can detect whether the VPN network resources between the data centers are available according to the data center location of the VNF. When the VPN network resources between the data centers are available, the WIM reserves the data center The WIM pre-tests the reserved network resources. When the QoS of the VPN meets the requirements, the WIM feeds back the resource reservation success response information.

In one possible design, the NFVO sends the WIM an instantiation request for the VPN, which can be:

Through the application resource or update resource operation of the virtual resource management interface, a VPN network connection instantiation request is sent to the WIM, so that the WIM instantiates the connection network required by the NS.

A second aspect provides a service flow-based service quality planning apparatus, which may be used to implement some or all of the steps in combination with the first aspect.

A third aspect provides a service flow planning system for service flow, including NFVO, VIM, and NFVO and VIM can be used to implement some or all of the steps in combination with the first aspect.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

1A is a schematic diagram of a framework of a NFV MANO provided in an embodiment of the present invention;

1B is a schematic diagram of a framework of an NFP provided in an embodiment of the present invention;

Fig. 2 is a kind of framework schematic diagram that a VIM manages a data center provided in the embodiment of the present invention;

3 is a schematic flowchart of a service flow-based service quality planning method provided in an embodiment of the present invention;

4 is a schematic diagram of a framework for managing at least two data centers by one VIM according to an embodiment of the present invention;

5 is a schematic flowchart of a service flow-based quality of service planning method provided in another embodiment of the present invention;

6 is a schematic structural diagram of a network function virtualization orchestrator provided in an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a service flow-based service quality planning apparatus provided in an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly described below with reference to the accompanying drawings in the embodiments of the present invention.

Please refer to FIG. 2. FIG. 2 is a schematic diagram of a framework in which one VIM manages one data center provided in an embodiment of the present invention. As shown in the figure, the VIM1 in the embodiment of the present invention manages a data center (Data Center, DC) 1, VIM2 manages DC2, VNFFG1 and VNFFG2 can reference other cells in NS, such as PNF, VL, VNF. VNFFG1 contains network networking path elements, which are used to describe the business chain aspects of VNFFG1. VNFFG2 contains network networking path elements, which are used to describe the business chain aspects of VNFFG2. NS, VNF and PNF cells contain connection point attributes to describe the relationship between NS, VNF or PNF and VL.

Taking the schematic diagram of the NFP framework shown in FIG. 1B as an example, the delay of each NFP consists of three parts: the delay TnL generated by VL, the delay TnV generated by VNF, and the delay TnP generated by the external network. For example, the Tnfp field can be added to the NFP of VNFGFD to obtain the delay of the NFP. Specifically, a field TL describing the QoS delay requirement can be added to the VLD, and the VL delay can be guaranteed by means of virtual network resource allocation, such as applying for an accelerator. In the embodiment of the present invention, a delay index field TV for reaching the VNF can also be added to the VNFD. Assuming that a VNF instance is deployed in a data center, as long as the system satisfies the resources required by the VNFD, the delay index of the VNF can be guaranteed. The resources required by the VNFD may include central processing unit (central processing unit, CPU) resources, memory resources, or accelerator resources, and the like. In addition, the delay index of the external network is guaranteed by the way that the network controller allocates VPN resources. The delay of the external network is TP, and the TP needs to meet the following conditions:

Tnfp1≥T01L+T02L+T03L+T01V+T02V+T01P+T02P

Tnfp2≥T01L+T02L+T03L+T04L+T05L+T01V+T02V+T03V+T04V+T05V+T01P+T02P+T03P

In the framework diagram of a VIM managing a data center shown in Figure 2, NFVO needs to determine the relationship between each VIM and its physical location, for example, VIM1 manages DC1, and VIM2 manages DC2. NFVO needs to interact with VIM and WIM to allocate reserved resources to VL, VNF and VPN.

NFVO needs to determine whether the resource allocation to the VNF is successful according to the data center location of the deployed VNF. For example, NFVO can obtain the delay of each NFP. When the following requirements are met, NFVO can determine the data center location of the successful VNF deployment:

Tvnffg1≥T01L+T02L+T03L+T01V+T02V+T01P+T02P

Tvnffg2≥T01L+T02L+T03L+T04L+T05L+T01V+T02V+T03V+T04V+T05V+T01P+T02P+T03P

Among them, Tvnffg1 is used to indicate the delay generated by VNFFG1, Tvnffg2 is used to indicate the delay generated by VNFFG2, TnL is used to indicate the delay generated by VLn, TnV is used to indicate the delay generated by VNFn, and TnP is used to indicate the delay generated by the external network. Delay, for example, T01P is used to indicate the delay generated by PNF1, T02P is used to indicate the delay generated by PNF2, T03P is used to indicate the delay generated by PNF3, and n is a numerical value.

In a specific implementation, the NFVO receives an instantiation request for the NS, and the instantiation request carries parameter information.

NFVO determines the service flow instance according to the parameter information.

NFVO determines the data center location for VNF deployment based on the remaining resources of each data center.

NFVO estimates the latency of service flow instances based on the location of the data center deployed on the VNF.

NFVO sends a resource reservation request for VL and VNF to VIM.

The VIM allocates reserved resources to the VL and VNF.

The NFVO sends a resource reservation request to the VPN to the WIM.

The WIM allocates reserved resources to the VPN.

VIM instantiates VL and VNF.

The WIM instantiates the VPN.

Please refer to FIG. 3. FIG. 3 is a schematic flowchart of a service flow-based QoS planning method provided in an embodiment of the present invention. The method can be applied to the framework of a VIM managing a data center shown in FIG. 2, such as The service flow-based service quality planning method in the embodiment of the present invention shown in the figure may at least include:

S301, the NFVO receives an instantiation request for the NS, and the instantiation request carries parameter information.

The NFVO can receive the instantiation request for the NS sent by the sender through the instantiated network service operation of the network service life cycle management interface. The instantiation request may carry parameter information, and the parameter information may include description block identification information of NSD or description block identification information of VNFGDD, and the like.

S302, the NFVO determines a service flow instance according to the parameter information.

NFVO can determine the service flow instance according to the parameter information. For example, the NFVO can determine the deployment template in the NSD of the NS, the deployment template includes instance identification information for different VNF instances of the same type, and the service flow instance is determined according to the instance identification information in the deployment template. For another example, the NFVO may determine a deployment template in the NSD of the NS, where the deployment template includes instance identification information for different VL instances of the same type, and determines a service flow instance according to the instance identification information in the deployment template. For another example, the NFVO may determine the NFP in the VNFGDD, the NFP is used to indicate the deployment template in the NS, and the service flow instance is determined according to the NFP. For another example, the NFVO can determine the demand parameters of the NFP in the VNFFGD, the demand parameters include delay, bandwidth and jitter, and determine the service flow instance according to the demand parameters.

In the specific implementation, NFVO can determine the boundary conditions before determining the service flow instance according to the parameter information. Boundary conditions, i.e. known conditions for solving a problem. From a network deployment perspective, known conditions can include:

Flavor that needs to be deployed or scaled, assuming that the required flavor has been calculated according to the traffic model. Flavor will indicate the required VNF and the size and number of VLs. When there are multiple VNFs or VLs of the same type, the VNFs or VLs of the same type can be distinguished by adding instance identifiers.

The QoS requirements of each service flow NFP have been specified (such as delay, bandwidth and jitter), and the service flow path NFP has been determined (participate in determining the relevant content of service flow instances).

Determine the data center location of the PNF that needs to be connected. The PNF may include a gateway (Gate Way), a radio frequency transmitting device (such as an iron tower) of a base station.

Determine the delay generated by each VNF. Assuming that the resources required by each VNF can be guaranteed, determine the message processing time and the delay generated by the VNF.

In an alternative embodiment, NFVO can detect whether the instantiation request is valid. For example, NFVO can detect whether the sender is authorized, that is, whether the sender has the conditions to send an instantiation request to NS. For another example, NFVO can detect whether the parameters carried by the instantiation request satisfy the correctness at the technical level and compliance at the policy level. Wherein, if the NS includes multiple VNFFGs and policy rules, the policy rules may cause that only some of the VNFFGs are valid for the service instance.

S303, the NFVO determines the location of the data center deployed on the VNF according to the remaining resources of each data center.

In the specific implementation, when the service flow instance includes a service flow NFP instance, NFVO can obtain the delay of the service flow NFP instance, and obtain the deployment scheme of the service flow instance that satisfies the delay. According to the obtained deployment scheme, determine The data center location where the VNF is deployed. Optionally, the NFVO may obtain the hop count of the NFP instance of the service flow, obtain the deployment scheme of the service flow instance that satisfies the hop count, and determine the location of the data center where the VNF is deployed according to the obtained deployment scheme.

When a service flow instance includes at least two service flow NFP instances, NFVO can sort each service flow NFP instance according to the delay required by the at least two service flow NFP instances, and obtain the deployment of the service flow instance that satisfies the minimum delay Scheme, in the deployment scheme of the service flow instance that meets the minimum delay, obtain the deployment scheme of other business flow instances other than the service flow instance that meets the minimum delay, according to the obtained business flow instance other than the minimum delay. The deployment plan of the service flow instance, and determine the data center location of the VNF deployment.

When the service flow instance includes at least two service flow NFP instances, NFVO can sort each service flow NFP instance according to the hop count of the at least two service flow NFP instances, and obtain the deployment scheme of the service flow instance that satisfies the maximum hop count, In the deployment scheme of the service flow instance that satisfies the maximum hop count, obtain the deployment scheme of other service flow instances other than the service flow instance that satisfies the maximum hop count. The deployment scheme of the instance determines the location of the data center where the VNF is deployed.

When a service flow instance includes at least two service flow NFP instances, NFVO can sort each service flow NFP instance according to the delay required by the at least two service flow NFP instances, and according to the hop count of the at least two service flow NFP instances , sort NFP instances of service flows with the same delay, obtain the deployment scheme of the service flow instance that satisfies the minimum delay and the maximum number of hops, and use the obtained deployment scheme of the service flow instance that meets the minimum delay and the maximum number of hops as the The first deployment scheme is a deployment scheme for obtaining other service flow instances other than the service flow instance that satisfies the minimum delay and the maximum hop count in the first deployment scheme, and uses the obtained service flow instance that meets the minimum delay and the maximum hop count. The deployment scheme of the other service flow instances is used as the second deployment scheme, and according to the second deployment scheme, the location of the data center to be deployed on the VNF is determined.

When the service flow instance includes at least two service flow NFP instances, NFVO can sort each service flow NFP instance according to the hop count of the at least two service flow NFP instances, and according to the delay required by the at least two service flow NFP instances , sort service flow NFP instances with the same hop count, obtain the deployment scheme of the service flow instance that satisfies the maximum hop count and minimum delay, and use the obtained deployment scheme of the service flow instance that meets the maximum hop count and minimum delay as the The first deployment scheme is a deployment scheme for obtaining other service flow instances other than the service flow instance that satisfies the maximum number of hops and the minimum delay in the first deployment scheme, and uses the obtained service flow instance that meets the maximum number of hops and the minimum delay. The deployment scheme of the other service flow instances is used as the second deployment scheme, and according to the second deployment scheme, the location of the data center to be deployed on the VNF is determined.

It should be noted that, if the current location of the data center deployed by NFVO to the VNF is not the same as the location of the data center where the VNF was located before receiving the instantiation request, NFVO can further estimate the generation of each service flow instance based on the location of the data center deployed to the VNF. If the current location of the data center deployed by NFVO to the VNF is the same as the location of the data center where the VNF was located before receiving the instantiation request, the instantiation of the NS fails, and NFVO sends the instantiation failure information to the sender, where the instantiation fails. Failure information can be used to describe why the instantiation failed.

In an optional embodiment, the NFVO may estimate the delay generated by each service flow instance according to the location of the data center deployed on the VNF. Taking the schematic diagram of a VIM managing a data center as shown in Figure 2 as an example, NFVO can estimate the delay generated by VNFFG1, VNFFG2 and each NFP respectively, and detect whether the delay generated by VNFFG1 satisfies the following conditions:

Tvnffg1≥T01L+T02L+T03L+T01V+T02V+T01P+T02P

NFVO can also detect whether the delay generated by VNFFG2 meets the following conditions:

Tvnffg2≥T01L+T02L+T03L+T04L+T05L+T01V+T02V+T03V+T04V+T05V+T01P+T02P+T03P

If the delay generated by VNFFG1 satisfies the above conditions, and the delay generated by VNFFG2 also satisfies the above conditions, the NFVO can further perform step S304; if the delay generated by VNFFG1 does not meet the above conditions, or the delay generated by VNFFG2 does not satisfy the above conditions , then NFVO can re-determine the data center location for VNF deployment according to the remaining resources of each data center.

S304, the NFVO sends a resource reservation request to the VIM.

NFVO may send resource reservation requests for VL and VNF to VIM. The VIM may include VIM1 and VIM2.

In an alternative embodiment, the NFVO may perform a feasibility check of the VNF interconnection setup. In a specific implementation, the NFVO can determine the location of the VL according to the location of the VNF. For example, if two VNFs are deployed in a data center managed by the same VIM, the VIM can assign the VL between the above two VNFs to the data center locations of the above two VNFs, that is, the data center location of the VL and the data center location of the VNF same. If two VNFs are deployed in data centers managed by different VIMs, the WIM can assign data center locations to VLs. Further, the NFVO may send a resource reservation request for the VL and the VNF to the VIM through the resource reservation operation of the virtual resource management interface.

It should be noted that, if there are multiple VNFFGs in the framework applied by the embodiment of the present invention, steps S304 to S313 are repeatedly performed for each VNFFG.

In an optional embodiment, when the pre-allocated VNF instance list is determined, and the VNF instance list includes at least one VNF instance, NFVO can detect whether the resources required for VNF instantiation are valid according to the data center location of the VNF. When the required resources are available, the NFVO can send a resource reservation request to the VIM through the Generate Resource Reservation operation of the virtual resource management interface.

S305, the VIM reserves the network resources required by the VL and the VNF.

In an optional embodiment, after the VIM receives the resource reservation request for the VL and the VNF, it can detect whether the network resources required for the VNF interconnection are available according to the data center location of the VNF, and when the network resources required for the VNF interconnection are available. , the VIM reserves the network resources required for VNF interconnection, the VIM pre-tests the reserved network resources, and when the QoS of the VL meets the requirements, the VIM feeds back the resource reservation success response information.

S306, the NFVO sends a resource reservation request to the WIM.

The NFVO may send a resource reservation request to the VPN to the WIM.

S307, the WIM reserves network resources required by the VPN.

In an alternative embodiment, the NFVO may perform a feasibility check of the interconnection setup between data centers. In the specific implementation, after the WIM receives the resource reservation request sent by the NFVO, it can detect whether the VPN network resources between the data centers are available according to the data center location of the VNF. The WIM can reserve the network resources. Further optionally, after the WIM reserves the network resources, it can pre-test the reserved network resources, and when the QoS of the VPN meets the requirements, the WIM feeds back the resource reservation success response information to the NFVO.

S308, the NFVO sends a VL network connection instantiation request to the VIM.

When NFVO needs to instantiate VL network resources at the NS layer, it can send a VL network connection instantiation request to the VIM. For example, when there is a VL network connection, the NFVO can send a VL network connection instantiation request to the VIM through the update resource operation of the virtual resource management interface. For another example, when there is no VL network connection, the NFVO can send a VL network connection instantiation request to the VIM through the application resource operation of the virtual resource management interface.

In a specific implementation, before the NFVO sends a VL network connection instantiation request to the VIM, the location of the VL can be determined according to the location of the VNF. For example, if two VNFs are deployed in a data center managed by the same VIM, the VIM can assign the VL between the above two VNFs to the data center locations of the above two VNFs, that is, the data center location of the VL and the data center location of the VNF same. If two VNFs are deployed in data centers managed by different VIMs, the WIM can assign data center locations to VLs.

S309, the VIM instantiates the VL network connection.

After the VIM receives the VL network connection instantiation request sent by the NFVO, it can instantiate the VL network connection, that is, instantiate the connection network required by the NS.

In an optional embodiment, after the VIM instantiates the VL network connection, it may send VL instantiation response information to the NFVO, where the VL instantiation response information is used to indicate that the VL network connection application is confirmed.

S310, the NFVO sends a VPN network connection instantiation request to the WIM.

When the NFVO needs to instantiate the VPN network resources at the NS layer, it can send a VPN network connection instantiation request to the WIM. For example, when there is a VPN network connection, the NFVO can send a VPN network connection instantiation request to the WIM through the update resource operation of the virtual resource management interface. For another example, when there is no VPN network connection, the NFVO can send a VPN network connection instantiation request to the WIM through the application resource operation of the virtual resource management interface.

S311, the WIM instantiates the VPN network connection.

After the WIM receives the VPN network connection instantiation request sent by the NFVO, it can instantiate the VPN network connection, that is, instantiate the connection network required by the NS.

In an optional embodiment, after the WIM instantiates the VPN network connection, it may send the VPN instantiation response information to the NFVO, where the VPN instantiation response information is used to indicate that the VPN network connection application is confirmed to be completed.

S312, the NFVO sends a VNF network connection instantiation request to the VIM.

When NFVO needs to connect the VNF to the network, it can send a VNF network connection instantiation request to the VIM. For example, when there is a VNF network connection, the NFVO can send a VNF network connection instantiation request to the VIM through the update resource operation of the virtual resource management interface. For another example, when there is no VNF network connection, the NFVO can send a VNF network connection instantiation request to the VIM through the application resource operation of the virtual resource management interface.

In an optional embodiment, for each VNF instance required by the NS, NFVO detects whether there is a VNF instance that meets the requirements through the VNF query operation on the VNF lifecycle management interface between the NS and the VNFM. The VNF lifecycle management interface with the VNFM calls the VNF instance; if it does not exist, the NFVO can request the VIM to instantiate the VNF. The embodiment of the present invention does not need to instantiate the VNF after each instantiation request is received, which can improve resource utilization.

In an optional embodiment, when the pre-allocated VNF instance list is determined, and the VNF instance list includes at least one VNF instance, NFVO can detect whether there is a VNF instance that needs to be instantiated currently in the VNF instance list. When there is a VNF instance that needs to be instantiated currently, NFVO can instantiate the VNF instance that needs to be instantiated by calling the instantiate VNF operation of the VNF lifecycle management interface. In a specific implementation, the NFVO may add parameters for the location of the data center where the VNF is deployed in the process of invoking the instantiating VNF operation of the VNF lifecycle management interface, so as to instantiate the VNF.

S313, the VIM instantiates the VNF network connection.

After the VIM receives the VNF network connection instantiation request sent by the NFVO, it can instantiate the VNF network connection. In the specific implementation, the VIM can connect to the external interface of the VNF, and connect the required VDU to the required connection network of the NS.

In an optional embodiment, after the VIM instantiates the VNF network connection, it may send VNF instantiation response information to the NFVO, where the VNF instantiation response information is used to indicate that the application for confirming the VNF network connection is completed.

In an optional embodiment, after the VIM instantiates the VNF network connection, the NFVO may send a VNF connection request to the NM, and the NM may connect the external interface of the VNF with the PNF interface. The network manager (Network Manager, NM) may include a maintenance support system (Operations Support System, OSS), a network element management (Element Management, EM), a network management system (Network Management System, NMS), or a WIM and the like.

In an optional embodiment, after the NFVO confirms the instantiation of the VL, the VPN, and the VNF, it may send the NS instantiation response information to the sender.

In an optional embodiment, when a request for capacity expansion or capacity reduction for the service flow instance is detected, the NFVO may expand or reduce the capacity of the service flow instance at a corresponding position of the network element related to the service flow instance. For example, when the network element needs to be expanded or contracted, NFVO can assume that the expansion or contraction of the network element does not affect the time for the network element to process messages, and the duration of all service flows in the entire network remains unchanged. Add or delete network elements at the data center location where the element is located. For another example, when the capacity of the network element is less than the preset threshold, NFVO can add network elements of the same type to the data center where the network element is located to ensure that the duration of all service flows in the entire network remains unchanged.

In an optional embodiment, when detecting a capacity expansion request for a service flow instance, NFVO can determine that the remaining resources of the data center to which the VNF belongs is less than a preset threshold, and the capacity expansion request carries the network elements that need to be added. The service flow-based quality of service planning method described in the embodiment instantiates the newly added network element.

In the service flow-based QoS planning method shown in Fig. 3, NFVO receives the instantiation request for the NS, determines the service flow instance according to the parameter information carried in the instantiation request, and determines the VNF according to the remaining resources of each data center. At the location of the deployed data center, NFVO sends a resource reservation request to VIM, VIM reserves network resources required by VL and VNF, NFVO sends resource reservation request to WIM, and WIM reserves network resources required by VPN. NFVO sends VL network connection instantiation request to VIM, VIM instantiates VL network connection, NFVO sends VPN network connection instantiation request to WIM, WIM instantiates VPN network connection, NFVO sends VNF network connection instantiation request to VIM , the VIM instantiates the VNF network connection, and can ensure the QoS of the service flow by adjusting the data center location of the VNF.

Please refer to FIG. 4. FIG. 4 is a schematic diagram of a framework for managing at least two data centers by one VIM provided in an embodiment of the present invention. As shown in the figure, the VIM in the embodiment of the present invention manages DC1 and DC2, and VNFFG can refer to NS Other cells in , such as PNF, VL, VNF. VNFFG contains network networking path elements, which are used to describe the business chain aspects of VNFFG. NS, VNF and PNF cells contain connection point attributes to describe the relationship between NS, VNF or PNF and VL.

VL3 spans data centers, i.e. VL3 is located in DC1 and DC2. VIM can allocate VNFs and VLs to designated data centers according to the location information, affinity and anti-affinity principles of each data center provided by NFVO.

NFVO needs to determine whether the resource allocation to the VNF is successful according to the data center location of the deployed VNF. For example, NFVO can obtain the delay of each NFP. When the following requirements are met, NFVO can determine the data center location of the successful VNF deployment:

Tvnffg≥T01L+T02L+T03L+T04L+T05L+T01V+T02V+T03V+T04V+T05V+T01P+T03P

Among them, Tvnffg is used to indicate the delay generated by VNFFG, TnL is used to indicate the delay generated by VLn, TnV is used to indicate the delay generated by VNFn, and TnP is used to indicate the delay generated by the external network. For example, T01P is used to indicate the generation delay of PNF1. time delay, T03P is used to indicate the time delay generated by PNF3, and n is a numerical value.

In a specific implementation, the NFVO receives an instantiation request for the NS, and the instantiation request carries parameter information.

NFVO determines the service flow instance according to the parameter information.

NFVO determines the data center location for VNF deployment based on the remaining resources of each data center.

NFVO estimates the latency of service flow instances based on the location of the data center deployed on the VNF.

NFVO sends a resource reservation request for VL and VNF to VIM.

The VIM allocates reserved resources to the VL and VNF.

VIM instantiates VL and VNF.

Please refer to FIG. 5. FIG. 5 is a schematic flowchart of a service flow-based QoS planning method provided in an embodiment of the present invention. The method can be applied to the framework shown in FIG. 4 in which one VIM manages at least two data centers , as shown in the figure, the service flow-based service quality planning method in the embodiment of the present invention may at least include:

S501, the NFVO receives an instantiation request for the NS, and the instantiation request carries parameter information.

The NFVO can receive the instantiation request for the NS sent by the sender through the instantiated network service operation of the network service life cycle management interface. The instantiation request may carry parameter information, and the parameter information may include description block identification information of NSD or description block identification information of VNFGDD, and the like.

S502, the NFVO determines a service flow instance according to the parameter information.

NFVO can determine the service flow instance according to the parameter information. For example, the NFVO can determine the deployment template in the NSD of the NS, the deployment template includes instance identification information for different VNF instances of the same type, and the service flow instance is determined according to the instance identification information in the deployment template. For another example, the NFVO may determine a deployment template in the NSD of the NS, where the deployment template includes instance identification information for different VL instances of the same type, and determines a service flow instance according to the instance identification information in the deployment template. For another example, the NFVO may determine the NFP in the VNFGDD, the NFP is used to indicate the deployment template in the NS, and the service flow instance is determined according to the NFP. For another example, the NFVO can determine the demand parameters of the NFP in the VNFFGD, the demand parameters include delay, bandwidth and jitter, and determine the service flow instance according to the demand parameters.

In an alternative embodiment, NFVO can detect whether the instantiation request is valid. For example, NFVO can detect whether the sender is authorized, that is, whether the sender has the conditions to send an instantiation request to NS. For another example, NFVO can detect whether the parameters carried by the instantiation request satisfy the correctness at the technical level and compliance at the policy level. Wherein, if the NS includes multiple VNFFGs and policy rules, the policy rules may cause that only some of the VNFFGs are valid for the service instance.

S503, the NFVO determines the location of the data center deployed on the VNF according to the remaining resources of each data center.

In the specific implementation, when the service flow instance includes a service flow NFP instance, NFVO can obtain the delay of the service flow NFP instance, and obtain the deployment scheme of the service flow instance that satisfies the delay. According to the obtained deployment scheme, determine The data center location where the VNF is deployed. Optionally, the NFVO may obtain the hop count of the NFP instance of the service flow, obtain the deployment scheme of the service flow instance that satisfies the hop count, and determine the location of the data center where the VNF is deployed according to the obtained deployment scheme.

When a service flow instance includes at least two service flow NFP instances, NFVO can sort each service flow NFP instance according to the delay required by the at least two service flow NFP instances, and obtain the deployment of the service flow instance that satisfies the minimum delay Scheme, in the deployment scheme of the service flow instance that meets the minimum delay, obtain the deployment scheme of other business flow instances other than the service flow instance that meets the minimum delay, according to the obtained business flow instance other than the minimum delay. The deployment plan of the service flow instance, and determine the data center location of the VNF deployment.

When the service flow instance includes at least two service flow NFP instances, NFVO can sort each service flow NFP instance according to the hop count of the at least two service flow NFP instances, and obtain the deployment scheme of the service flow instance that satisfies the maximum hop count, In the deployment scheme of the service flow instance that satisfies the maximum hop count, obtain the deployment scheme of other service flow instances other than the service flow instance that satisfies the maximum hop count. The deployment scheme of the instance determines the location of the data center where the VNF is deployed.

When a service flow instance includes at least two service flow NFP instances, NFVO can sort each service flow NFP instance according to the delay required by the at least two service flow NFP instances, and according to the hop count of the at least two service flow NFP instances , sort NFP instances of service flows with the same delay, obtain the deployment scheme of the service flow instance that satisfies the minimum delay and the maximum number of hops, and use the obtained deployment scheme of the service flow instance that meets the minimum delay and the maximum number of hops as the The first deployment scheme is a deployment scheme for obtaining other service flow instances other than the service flow instance that satisfies the minimum delay and the maximum hop count in the first deployment scheme, and uses the obtained service flow instance that meets the minimum delay and the maximum hop count. The deployment scheme of the other service flow instances is used as the second deployment scheme, and according to the second deployment scheme, the location of the data center to be deployed on the VNF is determined.

When the service flow instance includes at least two service flow NFP instances, NFVO can sort each service flow NFP instance according to the hop count of the at least two service flow NFP instances, and according to the delay required by the at least two service flow NFP instances , sort service flow NFP instances with the same hop count, obtain the deployment scheme of the service flow instance that satisfies the maximum hop count and minimum delay, and use the obtained deployment scheme of the service flow instance that meets the maximum hop count and minimum delay as the The first deployment scheme is a deployment scheme for obtaining other service flow instances other than the service flow instance that satisfies the maximum number of hops and the minimum delay in the first deployment scheme, and uses the obtained service flow instance that meets the maximum number of hops and the minimum delay. The deployment scheme of the other service flow instances is used as the second deployment scheme, and according to the second deployment scheme, the location of the data center to be deployed on the VNF is determined.

It should be noted that, if the current location of the data center deployed by NFVO to the VNF is not the same as the location of the data center where the VNF was located before receiving the instantiation request, NFVO can further estimate the generation of each service flow instance based on the location of the data center deployed to the VNF. If the current location of the data center deployed by NFVO to the VNF is the same as the location of the data center where the VNF was located before receiving the instantiation request, the instantiation of the NS fails, and NFVO sends the instantiation failure information to the sender, where the instantiation fails. Failure information can be used to describe why the instantiation failed.

In an optional embodiment, the NFVO may estimate the delay generated by each service flow instance according to the location of the data center deployed on the VNF. Taking the schematic diagram of a VIM managing at least two data centers as shown in Figure 4 as an example, NFVO can estimate the delay generated by VNFFG and each NFP, and detect whether the delay generated by VNFFG satisfies the following conditions:

Tvnffg≥T01L+T02L+T03L+T04L+T05L+T01V+T02V+T03V+T04V+T05V+T01P+T03P

If the delay generated by the VNFFG satisfies the above conditions, the NFVO can further perform step S504; if the delay generated by the VNFFG does not meet the above conditions, the NFVO can re-determine the location of the data center deployed on the VNF according to the remaining resources of each data center .

S504, the NFVO sends a resource reservation request to the VIM.

NFVO may send resource reservation requests for VL and VNF to VIM.

In an alternative embodiment, the NFVO may perform a feasibility check of the VNF interconnection setup. In a specific implementation, the NFVO may send a resource reservation request for the VL and the VNF to the VIM through the resource reservation operation of the virtual resource management interface.

It should be noted that, if there are multiple VNFFGs in the framework applied by the embodiment of the present invention, steps S504 to S509 are repeatedly performed for each VNFFG.

In an optional embodiment, when the pre-allocated VNF instance list is determined, and the VNF instance list includes at least one VNF instance, NFVO can detect whether the resources required for VNF instantiation are valid according to the data center location of the VNF. When the required resources are available, the NFVO can send a resource reservation request to the VIM through the Generate Resource Reservation operation of the virtual resource management interface.

S505, the VIM reserves the network resources required by the VL and the VNF.

In an optional embodiment, after the VIM receives the resource reservation request for the VL and the VNF, it can detect whether the network resources required for the VNF interconnection are available according to the data center location of the VNF, and when the network resources required for the VNF interconnection are available. , the VIM reserves the network resources required for VNF interconnection, the VIM pre-tests the reserved network resources, and when the QoS of the VL meets the requirements, the VIM feeds back the resource reservation success response information.

S506, the NFVO sends a VL network connection instantiation request to the VIM.

When NFVO needs to instantiate VL network resources at the NS layer, it can send a VL network connection instantiation request to the VIM. For example, when there is a VL network connection, the NFVO can send a VL network connection instantiation request to the VIM through the update resource operation of the virtual resource management interface. For another example, when there is no VL network connection, the NFVO can send a VL network connection instantiation request to the VIM through the application resource operation of the virtual resource management interface.

In a specific implementation, before the NFVO sends a VL network connection instantiation request to the VIM, the location of the VL can be determined according to the location of the VNF. For example, if two VNFs are deployed in a data center managed by the same VIM, the VIM can assign the VL between the above two VNFs to the data center locations of the above two VNFs, that is, the data center location of the VL and the data center location of the VNF same. If two VNFs are deployed in data centers managed by different VIMs, the WIM can assign data center locations to VLs.

S507, the VIM instantiates the VL network connection.

After the VIM receives the VL network connection instantiation request sent by the NFVO, it can instantiate the VL network connection, that is, instantiate the connection network required by the NS.

In an optional embodiment, after the VIM instantiates the VL network connection, it may send VL instantiation response information to the NFVO, where the VL instantiation response information is used to indicate that the VL network connection application is confirmed.

S508, the NFVO sends a VNF network connection instantiation request to the VIM.

When NFVO needs to connect the VNF to the network, it can send a VNF network connection instantiation request to the VIM. For example, when there is a VNF network connection, the NFVO can send a VNF network connection instantiation request to the VIM through the update resource operation of the virtual resource management interface. For another example, when there is no VNF network connection, the NFVO can send a VNF network connection instantiation request to the VIM through the application resource operation of the virtual resource management interface.

In an optional embodiment, for each VNF instance required by the NS, NFVO detects whether there is a VNF instance that meets the requirements through the VNF query operation on the VNF lifecycle management interface between the NS and the VNFM. The VNF lifecycle management interface with the VNFM calls the VNF instance; if it does not exist, the NFVO can request the VIM to instantiate the VNF. The embodiment of the present invention does not need to instantiate the VNF after each instantiation request is received, which can improve resource utilization.

In an optional embodiment, when the pre-allocated VNF instance list is determined, and the VNF instance list includes at least one VNF instance, NFVO can detect whether there is a VNF instance that needs to be instantiated currently in the VNF instance list. When there is a VNF instance that needs to be instantiated currently, NFVO can instantiate the VNF instance that needs to be instantiated by calling the instantiate VNF operation of the VNF lifecycle management interface. In a specific implementation, the NFVO may add parameters for the location of the data center where the VNF is deployed in the process of invoking the instantiating VNF operation of the VNF lifecycle management interface, so as to instantiate the VNF.

S509, the VIM instantiates the VNF network connection.

After the VIM receives the VNF network connection instantiation request sent by the NFVO, it can instantiate the VNF network connection. In the specific implementation, the VIM can connect to the external interface of the VNF, and connect the required VDU to the required connection network of the NS.

In an optional embodiment, after the VIM instantiates the VNF network connection, it may send VNF instantiation response information to the NFVO, where the VNF instantiation response information is used to indicate that the application for confirming the VNF network connection is completed.

In an optional embodiment, after the VIM instantiates the VNF network connection, the NFVO may send a VNF connection request to the NM, and the NM may connect the external interface of the VNF with the PNF interface. The NM may include OSS, EM, NMS, or WIM, etc.

In an optional embodiment, after the NFVO confirms the instantiation of the VL, the VPN, and the VNF, it may send the NS instantiation response information to the sender.

In an optional embodiment, when a request for capacity expansion or capacity reduction for the service flow instance is detected, the NFVO may expand or reduce the capacity of the service flow instance at a corresponding position of the network element related to the service flow instance. For example, when the network element needs to be expanded or contracted, NFVO can assume that the expansion or contraction of the network element does not affect the time for the network element to process messages, and the duration of all service flows in the entire network remains unchanged. Add or delete network elements at the data center location where the element is located. For another example, when the capacity of the network element is less than the preset threshold, NFVO can add network elements of the same type to the data center where the network element is located to ensure that the duration of all service flows in the entire network remains unchanged.

In an optional embodiment, when detecting a capacity expansion request for a service flow instance, NFVO can determine that the remaining resources of the data center to which the VNF belongs is less than a preset threshold, and the capacity expansion request carries the network elements that need to be added. The service flow-based quality of service planning method described in the embodiment instantiates the newly added network element.

In the service flow-based QoS planning method shown in Figure 5, NFVO receives the instantiation request for NS, determines the service flow instance according to the parameter information carried in the instantiation request, and determines the VNF according to the remaining resources of each data center. The deployed data center location, NFVO sends a resource reservation request to VIM, VIM reserves the network resources required by VL and VNF, NFVO sends VL network connection instantiation request to VIM, VIM instantiates VL network connection, NFVO Send a VNF network connection instantiation request to the VIM, and the VIM instantiates the VNF network connection. By adjusting the data center location of the VNF, the QoS of the service flow can be guaranteed.

It should be noted that if NFVO is used for life cycle management of network communication across at least three data centers, and there are at least two VIMs that interact with NFVO, there is one VIM that manages one data center, and one VIM that manages at least two data centers. If there are two data centers, the service flow-based QoS planning method in this embodiment of the present invention may be combined with some or all of the processes in the service flow QoS planning method embodiments described in FIG. 3 and FIG. 5 . For example, NFVO can interact with the VIM managing a data center in combination with the service flow planning method shown in Figure 3 to instantiate VNFs, VLs, and VPNs, and NFVO can also combine the service flows shown in Figure 5. The QoS planning method interacts with the VIM managing at least two data centers to instantiate the VNF as well as the VL.

Referring to FIG. 6, FIG. 6 is a schematic structural diagram of an NFVO provided in an embodiment of the present invention. As shown in FIG. 6 , the NFVO may include: a processor 601 , a memory 602 , an input device 603 and an output device 604 . The processor 601 is connected to the memory 602, the input device 603 and the output device 604. For example, the processor 601 may be connected to the memory 602, the input device 603 and the output device 604 through a bus.

The processor 601 may be a CPU, a network processor (NP), or the like.

The memory 602 may specifically be used to store data blocks and data block version numbers corresponding to the data blocks, and the like. The memory 602 may include volatile memory (volatile memory), such as random-access memory (RAM); the memory may also include non-volatile memory (non-volatile memory), such as read-only memory (read-only memory) memory, ROM), flash memory (flash memory), hard disk drive (HDD) or solid-state drive (solid-state drive, SSD); the memory may also include a combination of the above types of memory.

Optionally, the input device 603 may include a standard wired interface, a wireless interface (such as a WI-FI interface), and the like.

Optionally, the output device 604 may include a standard wired interface, a wireless interface (such as a WI-FI interface), and the like.

The processor 601, the input device 603 and the output device 604 call the program code stored in the memory 602, and can perform the following operations:

The input device 603 is used to receive an instantiation request for the NS.

The processor 601 is configured to determine the location of the data center deployed on the VNF according to the remaining resources of each data center.

The output device 604 is configured to send a resource reservation request to the VIM, where the resource reservation request is used to indicate the network resources required for reserving the VL and the VNF.

The output device 604 is further configured to send an instantiation request for the VL and the VNF to the VIM when receiving the resource reservation success response information fed back by the VIM in response to the resource reservation request.

The input device 603 is further configured to receive instantiation response information fed back by the VIM in response to the instantiation request for the VL and the VNF.

Specifically, the NFVO introduced in the embodiment of the present invention may be used to implement part or all of the processes in the embodiment of the service flow-based QoS planning method introduced in the present invention in conjunction with FIG. 3 or FIG. 5 .

Referring to FIG. 7, FIG. 7 is a schematic structural diagram of a service flow-based QoS planning apparatus provided in an embodiment of the present invention, wherein the service flow-based QoS planning apparatus provided in the embodiment of the present invention may be combined with the The processor 601, as shown in the figure, the service flow-based service quality planning apparatus in the embodiment of the present invention may at least include a request receiving unit 701, a location determining unit 702, a request sending unit 703, and an information receiving unit 704, wherein:

The request receiving unit 701 is configured to receive an instantiation request for the NS.

The location determining unit 702 is configured to determine the location of the data center deployed on the VNF according to the remaining resources of each data center.

The request sending unit 703 is configured to send a resource reservation request to the VIM, where the resource reservation request is used to indicate the network resources required for reserving the VL and the VNF.

The request sending unit 703 is further configured to send an instantiation request for the VL and the VNF to the VIM when receiving the resource reservation success response information fed back by the VIM in response to the resource reservation request.

The information receiving unit 704 is configured to receive the instantiation response information fed back by the VIM in response to the instantiation request for the VL and the VNF.

In an optional embodiment, the instantiation request carries parameter information, and the service flow-based service quality planning apparatus in this embodiment of the present invention may further include:

The instance determining unit 705 is configured to determine the service flow instance according to the parameter information after the request receiving unit 701 receives the instantiation request for the NS.

In an optional embodiment, the instance determining unit 705 is specifically configured to:

Determine the deployment template in the NSD of the NS, where the deployment template includes instance identification information for different VNF instances of the same type.

Determine the service flow instance according to the instance identification information in the deployment template.

In an optional embodiment, the instance determining unit 705 is specifically configured to:

A deployment template in the NSD of the NS is determined, where the deployment template includes instance identification information for different VL instances of the same type.

Determine the service flow instance according to the instance identification information in the deployment template.

In an optional embodiment, the instance determining unit 705 is specifically configured to:

Determine the NFP in VNFFGD, which is used to indicate the deployment template in NS.

According to the NFP, the service flow instance is determined.

In an optional embodiment, the instance determining unit 705 is specifically configured to:

Determine the required parameters of NFP in VNFFGD, the required parameters include delay, bandwidth and jitter.

Determine the business flow instance according to the requirement parameters.

In an optional embodiment, the service flow-based service quality planning apparatus in the embodiment of the present invention may further include:

The delay estimation unit 706 is used for the location determination unit 702 to determine the location of the data center deployed to the VNF according to the remaining resources of each data center, and to estimate the delay that will be generated by the service flow instance according to the location of the data center. Examples include at least one VNFFG.

The request sending unit 703 is further configured to send a resource reservation request to the VIM when the delay of each VNFFG meets the corresponding delay requirement.

The location determining unit 702 is further configured to determine the location of the data center deployed on the VNF according to the remaining resources of each data center when the delay of at least one VNFFG does not meet the corresponding delay requirement.

In an optional embodiment, the service flow instances include at least two service flow NFP instances, and the location determining unit 702 is specifically configured to:

Sort each service flow NFP instance according to the delay required by at least two service flow NFP instances.

Obtain the deployment plan of the service flow instance that meets the minimum latency.

In the deployment scheme of the service flow instance that satisfies the minimum delay, the deployment scheme of other service flow instances other than the service flow instance that satisfies the minimum delay is obtained.

Determine the location of the data center where the VNF is deployed according to the obtained deployment scheme of service flow instances other than the service flow instance that meets the minimum delay.

In an optional embodiment, the service flow instances include at least two service flow NFP instances, and the location determining unit 702 is specifically configured to:

Sort each service flow NFP instance according to the hop count of at least two service flow NFP instances.

Get the deployment scheme of the service flow instance that meets the maximum hop count.

In the deployment scheme of the service flow instance that satisfies the maximum hop count, obtains the deployment scheme of other service flow instances other than the service flow instance that satisfies the maximum hop count.

Determine the location of the data center where the VNF is deployed according to the obtained deployment scheme of the service flow instance other than the service flow instance that meets the maximum hop count.

In an optional embodiment, the service flow instances include at least two service flow NFP instances, and the location determining unit 702 is specifically configured to:

Sort each service flow NFP instance according to the delay required by at least two service flow NFP instances.

Sort service flow NFP instances with the same delay according to the number of hops of at least two service flow NFP instances.

Obtain the deployment scheme of the service flow instance that satisfies the minimum delay and the maximum hop count, and uses the obtained deployment scheme of the service flow instance that satisfies the minimum delay and the maximum hop count as the first deployment scheme.

In the first deployment scheme, obtain the deployment scheme of other service flow instances other than the service flow instance that satisfies the minimum delay and the maximum hop count, and use the obtained service flow other than the service flow instance that satisfies the minimum delay and the maximum hop count. The deployment scheme of the instance is used as the second deployment scheme.

According to the second deployment scheme, the location of the data center to be deployed on the VNF is determined.

In an optional embodiment, the service flow instances include at least two service flow NFP instances, and the location determining unit 702 is specifically configured to:

Sort each service flow NFP instance according to the hop count of at least two service flow NFP instances.

Sort service flow NFP instances with the same number of hops according to the delay required by at least two service flow NFP instances.

The deployment scheme of the service flow instance that satisfies the maximum hop count and the minimum delay is obtained, and the obtained deployment scheme of the service flow instance that meets the maximum hop count and the minimum delay is used as the first deployment scheme.

In the first deployment scheme, obtain the deployment scheme of other service flow instances other than the service flow instance that satisfies the maximum hop count and the minimum delay, and use the obtained service flow other than the service flow instance that meets the maximum hop count and the minimum delay. The deployment scheme of the instance is used as the second deployment scheme.

According to the second deployment scheme, the location of the data center to be deployed on the VNF is determined.

In an optional embodiment, the request sending unit 703 sends a resource reservation request to the VIM, which is specifically used for:

Through the resource reservation operation of the virtual resource management interface, a resource reservation request is sent to the VIM, so that the VIM can detect whether the network resources required for the VNF interconnection are available according to the data center location of the VNF. When the network resources required for the VNF interconnection are available When , the VIM reserves the network resources required for VNF interconnection, the VIM pre-tests the reserved network resources, and when the QoS of the VL meets the requirements, the VIM feeds back the resource reservation success response information.

In an optional embodiment, the request sending unit 703 sends a resource reservation request to the VIM, which is specifically used for:

When the pre-allocated VNF instance list is determined, and the VNF instance list includes at least one VNF instance, it is detected whether the resources required for VNF instantiation are valid according to the data center location of the VNF.

When the resources required for VNF instantiation are available, a resource reservation request is sent to the VIM.

In an optional embodiment, the request sending unit 702 sends an instantiation request for the VL to the VIM, specifically for:

Through the application resource or update resource operation of the virtual resource management interface, a VL network connection instantiation request is sent to the VIM, so that the VIM instantiates the connection network required by the NS.

In an optional embodiment, the request sending unit 702 sends an instantiation request for the VNF to the VIM, which is specifically used for:

Through the application resource or update resource operation of the virtual resource management interface, a VNF network connection instantiation request is sent to the VIM, so that the VIM connects to the external interface of the VNF, and connects the required VDU to the required connection network of the NS.

In an optional embodiment, the service flow-based service quality planning apparatus in the embodiment of the present invention may further include:

The instantiating unit 707 is configured to, after the information receiving unit 704 receives the resource reservation success response information fed back by the VIM in response to the resource reservation request, when the pre-allocated VNF instance list is determined, and the VNF instance list includes at least one VNF instance, In the process of invoking the instantiating VNF operation of the VNF life cycle management interface, the location parameter information is added, and the location parameter information includes the data center location of the VNF to instantiate the VNF.

In an optional embodiment, the service flow-based service quality planning apparatus in the embodiment of the present invention may further include:

The expansion and scaling unit 708 is configured to expand or reduce the capacity of the NS at a corresponding position of the network element related to the NS when a capacity expansion request or a capacity reduction request for the NS is received.

In an optional embodiment, the service flow-based service quality planning apparatus in the embodiment of the present invention may further include:

The resource amount determination unit 709 is configured to determine that the remaining resource amount of the data center where the VNF is located is less than a preset threshold when a capacity expansion request for the NS is received.

The request generating unit 710 is configured to generate an instantiation request for the NS.

In an optional embodiment, the location determining unit 702 is further configured to determine the data center location of the VL according to the data center location of the VNF after determining the data center location deployed on the VNF according to the remaining resources of each data center.

In an optional embodiment, the location determining unit 702 determines the data center location of the VL according to the data center location of the VNF, and is specifically used for:

When two VNFs are deployed in the data center of the same VIM, the data center location of the VL between the two VNFs is the same as the data center location of the two VNFs.

When two VNFs are deployed in data centers managed by different VIMs, the data center location of the VL between the two VNFs is determined by the WIM.

In an optional embodiment, the request sending unit 703 is further configured for the location determining unit 702 to send a resource reservation request to the WIM after determining the location of the data center deployed on the VNF according to the remaining resources of each data center. Used to indicate the network resources required to reserve VPN.

The request sending unit 703 is further configured to send an instantiation request to the VPN to the WIM when receiving the resource reservation success response information fed back by the WIM in response to the resource reservation request.

The information receiving unit 704 is further configured to receive instantiation response information fed back by the WIM in response to the instantiation request for the VPN.

In an optional embodiment, the request sending unit 703 sends a resource reservation request to the WIM, which may specifically be:

Send a resource reservation request to the WIM, so that the WIM can detect whether the VPN resources between the data centers are available according to the data center location of the VNF. When the VPN resources between the data centers are available, the WIM reserves the VPN between the data centers. Resource, WIM pre-tests the reserved network resources, when the QoS of VPN meets the requirements, WIM feeds back resource reservation success response information.

In an optional embodiment, the request sending unit 703 sends an instantiation request for the VPN to the WIM, which may specifically be:

Through the application resource or update resource operation of the virtual resource management interface, a VPN network connection instantiation request is sent to the WIM, so that the WIM instantiates the connection network required by the NS.

Specifically, the service flow-based QoS planning apparatus introduced in the embodiment of the present invention may be used to implement part or all of the processes in the service flow-based service quality planning method embodiment of the present invention with reference to FIG. 3 or FIG. 5 .

In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structures, materials, or features are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

Logic and/or steps represented in flowcharts or otherwise described herein, for example, may be considered a program listing of executable instructions for implementing the logical functions, and may be embodied in any computer-readable medium to For use with an instruction execution system, apparatus or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from and execute instructions from an instruction execution system, apparatus or apparatus) or in conjunction with such instruction execution system, apparatus or apparatus equipment is used. For the purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or apparatus. More specific examples (non-exhaustive list) of computer readable media include the following: electrical connections with one or more wiring (electronic devices), portable computer disk cartridges (magnetic devices), random access memory, read only memory , Erasable Editable ROM, Fiber Optic Devices, and Portable Optical ROM. In addition, the computer readable medium may even be paper or other suitable medium on which the program may be printed, as the paper or other medium may be optically scanned, for example, followed by editing, interpretation, or other suitable medium as necessary process to obtain the program electronically and then store it in computer memory.

It should be understood that various parts of the present invention may be implemented in hardware, software, firmware or a combination thereof. In the above-described embodiments, various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or a combination of the following techniques known in the art: Discrete logic circuits, application specific integrated circuits with suitable combinational logic gates, programmable gate arrays, field programmable gate arrays, etc.

In addition, the modules in the various embodiments of the present invention may be implemented in the form of hardware, and may also be implemented in the form of software function modules. If the integrated modules are implemented in the form of software functional modules and sold or used as independent products, they may also be stored in a computer-readable storage medium.

Although the embodiments of the present invention have been shown and described above, it should be understood that the above-mentioned embodiments are exemplary and should not be construed as limiting the present invention. Embodiments are subject to variations, modifications, substitutions and variations.

Claims (47)

1. A service flow-based quality of service planning method, wherein the method is applied to a network function virtualization orchestrator, and the method comprises: Receive instantiation requests for network services; determine the location of data centers where virtual network functions are deployed according to the remaining resources of each data center; Sending a resource reservation request to the virtual infrastructure manager, wherein the resource reservation request is used to instruct the virtual infrastructure manager to reserve the virtual connection and the network required by the virtual network function according to the location of the data center of the virtual network function resource; When receiving the resource reservation success response information fed back by the virtual infrastructure manager in response to the resource reservation request, sending an instantiation request for the virtual connection and virtual network function to the virtual infrastructure manager ; Receive instantiation response information fed back by the virtual infrastructure manager in response to the instantiation request for the virtual connection and the virtual network function. 2. The method of claim 1, wherein the instantiation request carries parameter information; After receiving the instantiation request for the network service, the method further includes: According to the parameter information, the service flow instance is determined. 3. The method of claim 2, wherein the determining a service flow instance according to the parameter information comprises: determining a deployment template in the network service description information block of the network service, where the deployment template includes instance identification information for different virtual network function instances of the same type; The service flow instance is determined according to the instance identification information in the deployment template. 4. The method of claim 2, wherein the determining a service flow instance according to the parameter information comprises: determining a deployment template in the network service description information block of the network service, where the deployment template includes instance identification information for different virtual connection instances of the same type; The service flow instance is determined according to the instance identification information in the deployment template. 5. The method of claim 2, wherein the determining a service flow instance according to the parameter information comprises: determining a network forwarding path in the virtual network function forwarding graph description information block, where the network forwarding path is used to indicate a deployment template in the network service; The service flow instance is determined according to the network forwarding path. 6. The method of claim 2, wherein the determining a service flow instance according to the parameter information comprises: determining a requirement parameter of the network forwarding path in the virtual network function forwarding map description information block, where the requirement parameter includes delay, bandwidth and jitter; The service flow instance is determined according to the requirement parameter. 7. The method according to any one of claims 2 to 6, wherein, before determining the location of the data center where the virtual network function is deployed according to the remaining resources of each data center, the method further comprises: Estimating, according to the location of the data center, a delay to be generated by the service flow instance, where the service flow instance includes at least one virtual network function forwarding graph; sending the resource reservation request to the virtual infrastructure manager when the delay of each of the virtual network function forwarding graphs satisfies the corresponding delay requirement; When the delay of at least one of the virtual network function forwarding graphs does not meet the corresponding delay requirement, the step of determining the location of the data center for deploying the virtual network function according to the remaining resources of each data center is performed. 8. A service flow-based quality of service planning method, wherein the method has all the features of the method according to any one of claims 2 to 7, and the service flow instance includes at least two service flow networks forwarding path instance; Before determining the location of the data center where the virtual network function is deployed according to the remaining resources of each data center, the method further includes: sorting each of the service flow network forwarding path instances according to the delay required by the at least two service flow network forwarding path instances; Obtain the deployment plan of the service flow instance that meets the minimum delay; In the deployment scheme of the service flow instance that meets the minimum delay, obtain deployment schemes of other service flow instances other than the service flow instance that meets the minimum delay; Determine the location of the data center for deploying the virtual network function according to the acquired deployment scheme of other service flow instances other than the service flow instance that meets the minimum delay. 9. A method for quality of service planning based on service flow, characterized in that the method has all the features of the method according to any one of claims 2 to 7, and the service flow instance includes at least two service flows network forwarding path instance; Before determining the location of the data center where the virtual network function is deployed according to the remaining resources of each data center, the method further includes: sorting each of the service flow network forwarding path instances according to the hop counts of the at least two service flow network forwarding path instances; Obtain the deployment scheme of the service flow instance that meets the maximum hop count; In the deployment scheme of the service flow instance that satisfies the maximum hop count, obtain deployment schemes of other service flow instances other than the service flow instance that satisfies the maximum hop count; Determine the location of the data center for deploying the virtual network function according to the acquired deployment scheme of the service flow instance other than the service flow instance satisfying the maximum hop count. 10. A method for quality of service planning based on service flow, characterized in that the method has all the features of the method according to any one of claims 2 to 7, and the service flow instance includes at least two service flows network forwarding path instance; Before determining the location of the data center where the virtual network function is deployed according to the remaining resources of each data center, the method further includes: sorting each of the service flow network forwarding path instances according to the delay required by the at least two service flow network forwarding path instances; Sorting the network forwarding path instances of the service flow with the same delay according to the hop count of the at least two service flow network forwarding path instances; Obtain the deployment scheme of the service flow instance that satisfies the minimum delay and the maximum hop count, and uses the obtained deployment scheme of the service flow instance that meets the minimum delay and the maximum hop count as the first deployment scheme; In the first deployment scheme, a deployment scheme of other service flow instances other than the service flow instance that satisfies the minimum delay and the maximum hop count is obtained, and the obtained service flow instance that meets the minimum delay and the maximum hop count is used. The deployment scheme of other business flow instances other than the business flow instance is used as the second deployment scheme; According to the second deployment solution, the location of the data center where the virtual network function is deployed is determined. 11. A method for quality of service planning based on service flow, characterized in that the method has all the features of the method according to any one of claims 2 to 7, and the service flow instance includes at least two service flows network forwarding path instance; Before determining the location of the data center where the virtual network function is deployed according to the remaining resources of each data center, the method further includes: sorting each of the service flow network forwarding path instances according to the hop counts of the at least two service flow network forwarding path instances; Sorting the service flow network forwarding path instances with the same hop count according to the delay required by the at least two service flow network forwarding path instances; obtaining a deployment solution for the service flow instance that satisfies the maximum hop count and minimum delay, and using the obtained deployment solution for the service flow instance that meets the maximum hop count and minimum delay as the first deployment solution; In the first deployment scheme, a deployment scheme of other service flow instances other than the service flow instance that satisfies the maximum hop count and the minimum delay is obtained, and the obtained service flow instance that meets the maximum hop count and the minimum delay is used. The deployment scheme of other business flow instances other than the business flow instance is used as the second deployment scheme; According to the second deployment solution, the location of the data center where the virtual network function is deployed is determined. 12. A method for quality of service planning based on a service flow, characterized in that the method has all the features of the method according to any one of claims 1 to 11, and the method sends resource pre-configuration to a virtual infrastructure manager. stay requests, including: The resource reservation request is sent to the virtual infrastructure manager through the generating resource reservation operation of the virtual resource management interface, so that the virtual infrastructure manager detects all the resources according to the data center location of the virtual network function. Whether the network resources required for the virtual network function interconnection are available, when the network resources required for the virtual network function interconnection are available, the virtual infrastructure manager reserves the network resources required for the virtual network function interconnection, so The virtual infrastructure manager pre-tests the reserved network resources, and when the service quality of the virtual connection meets the requirements, the virtual infrastructure manager feeds back the resource reservation success response information. 13. A method for quality of service planning based on service flow, characterized in that the method has all the features of the method according to any one of claims 1 to 12, and the method sends resource pre-configuration to the virtual infrastructure manager. stay requests, including: When a pre-allocated virtual network function instance list is determined, and the virtual network function instance list includes at least one virtual network function instance, detecting resources required for instantiation of the virtual network function according to the data center location of the virtual network function is it effective; The resource reservation request is sent to the virtual infrastructure manager when the resources required for instantiation of the virtual network function are available. 14. A method for quality of service planning based on a service flow, characterized in that the method has all the features of the method according to any one of claims 1 to 13, and the method sends the message to the virtual infrastructure manager The instantiation request for the virtual connection, including: Send a virtual connection network connection instantiation request to the virtual infrastructure manager through an operation of applying for a resource or updating a resource on the virtual resource management interface, so that the virtual infrastructure manager performs the connection network required by the network service. instantiate. 15. A method for quality of service planning based on a service flow, characterized in that the method has all the features of the method according to any one of claims 1 to 14, and the method sends the message to the virtual infrastructure manager An instantiation request to the virtual network function, including: Sending a virtual network function network connection instantiation request to the virtual infrastructure manager through an operation of applying for a resource or updating a resource of the virtual resource management interface, so that the virtual infrastructure manager is connected to the external interface of the virtual network function, And connect the required virtual deployment unit to the connection network required by the network service. 16. A method for quality of service planning based on a service flow, characterized in that the method has all the features of the method according to any one of claims 1 to 14, and the virtual infrastructure manager receives the After the resource reservation success response information fed back in response to the resource reservation request, the method further includes: When a pre-allocated list of virtual network function instances is determined, and the list of virtual network function instances includes at least one virtual network function instance, the location parameter is added in the process of invoking the instantiated virtual network function operation of the virtual network function lifecycle management interface information, the location parameter information includes the data center location of the virtual network function to instantiate the virtual network function. 17. A method for quality of service planning based on service flow, characterized in that the method has all the features of the method according to any one of claims 1 to 16, and the method further comprises: When a capacity expansion request or a capacity reduction request for the network service is received, the network service is expanded or reduced in capacity at a corresponding position of the network element related to the network service. 18. A method for quality of service planning based on service flow, characterized in that the method has all the features of the method according to any one of claims 1 to 16, and the method further comprises: When receiving the expansion request for the network service, determine that the remaining resource amount of the data center where the virtual network function is located is less than a preset threshold; An instantiated request for the network service is generated. 19. A method for quality of service planning based on service flow, characterized in that the method has all the features of the method according to any one of claims 1 to 18, and the method is based on the remaining resources of each data center, After determining the data center location for the virtual network function deployment, include: The data center location of the virtual connection is determined based on the data center location of the virtual network function. 20. The method of claim 19, wherein the determining the data center location of the virtual connection according to the data center location of the virtual network function comprises: When two virtual network functions are deployed in a data center managed by the same virtual infrastructure manager, the data center location of the virtual connection between the two virtual network functions is the same as the data center location of the two virtual network functions ; When two virtual network functions are deployed in data centers managed by different virtual infrastructure managers, the data center location of the virtual connection between the two virtual network functions is determined by the wide area network infrastructure manager. 21. A method for quality of service planning based on service flow, characterized in that the method has all the features of the method according to any one of claims 1 to 20, and the method is based on the remaining resources of each data center, After determining the data center location for the virtual network function deployment, include: sending a resource reservation request to the wide area network infrastructure manager, the resource reservation request being used to indicate the reservation of network resources required by the virtual private network; When receiving the resource reservation success response information fed back by the WAN infrastructure manager in response to the resource reservation request, sending an instantiation request for the virtual private network to the WAN infrastructure manager; Receive instantiation response information fed back by the WAN infrastructure manager in response to the instantiation request for the virtual private network. 22. The method of claim 21, wherein the sending a resource reservation request to the WAN infrastructure manager comprises: Send the resource reservation request to the WAN infrastructure manager, so that the WAN infrastructure manager detects whether the virtual private network resources between the various data centers are available according to the data center location of the virtual network function, and when all When the virtual private network resources between the data centers are available, the WAN infrastructure manager reserves the virtual private network resources between the data centers, and the WAN infrastructure manager pre-tests the reserved network resources , when the service quality of the virtual private network meets the requirements, the WAN infrastructure manager feeds back the resource reservation success response information. 23. The method of claim 21 or 22, wherein the sending an instantiation request for the virtual private network to the WAN infrastructure manager comprises: Send a virtual private network connection instantiation request to the WAN infrastructure manager through an operation of applying for resources or updating resources on the virtual resource management interface, so that the WAN infrastructure manager instantiates the connection network required by the network service . 24. A service flow-based service quality planning device, characterized in that it comprises: a request receiving unit, configured to receive an instantiated request for a network service; a location determination unit, configured to determine the location of the data center where the virtual network function is deployed according to the remaining resources of each data center; a request sending unit, configured to send a resource reservation request to the virtual infrastructure manager, where the resource reservation request is used to instruct the virtual infrastructure manager to reserve a virtual connection and a virtual network function according to the location of the data center of the virtual network function required network resources; The request sending unit is further configured to, when receiving the resource reservation success response information fed back by the virtual infrastructure manager in response to the resource reservation request, send a request for the virtual infrastructure manager to the virtual infrastructure manager. Connection and instantiation requests for virtual network functions; An information receiving unit, configured to receive instantiation response information fed back by the virtual infrastructure manager in response to the instantiation request for the virtual connection and the virtual network function. 25. The apparatus of claim 24, wherein the instantiation request carries parameter information, the apparatus further comprising: The instance determining unit is configured to determine the service flow instance according to the parameter information after the request receiving unit receives the instantiation request for the network service. 26. The apparatus of claim 25, wherein the instance determining unit is specifically configured to: determining a deployment template in the network service description information block of the network service, where the deployment template includes instance identification information for different virtual network function instances of the same type; The service flow instance is determined according to the instance identification information in the deployment template. 27. The apparatus of claim 25, wherein the instance determining unit is specifically configured to: determining a deployment template in the network service description information block of the network service, where the deployment template includes instance identification information for different virtual connection instances of the same type; The service flow instance is determined according to the instance identification information in the deployment template. 28. The apparatus of claim 25, wherein the instance determining unit is specifically configured to: determining a network forwarding path in the virtual network function forwarding graph description information block, where the network forwarding path is used to indicate a deployment template in the network service; The service flow instance is determined according to the network forwarding path. 29. The apparatus of claim 25, wherein the instance determining unit is specifically configured to: determining a requirement parameter of the network forwarding path in the virtual network function forwarding map description information block, where the requirement parameter includes delay, bandwidth and jitter; The service flow instance is determined according to the requirement parameter. 30. The device according to any one of claims 25 to 29, wherein the device further comprises: A delay estimation unit, used for the location determination unit to estimate the service according to the location of the data center before determining the location of the data center where the virtual network function is deployed according to the remaining resources of each of the data centers The delay to be generated by the flow instance, the service flow instance includes at least one virtual network function forwarding graph; The request sending unit is further configured to send the resource reservation request to the virtual infrastructure manager when the delay of each of the virtual network function forwarding graphs meets the corresponding delay requirement; The location determining unit is further configured to, when the delay of at least one of the virtual network function forwarding graphs does not meet the corresponding delay requirement, perform the determining of the deployment of the virtual network function according to the remaining resources of each data center. Data center location. 31. An apparatus for quality of service planning based on a service flow, wherein the apparatus has all the features of the apparatus according to any one of claims 25 to 30, and the service flow instance includes at least two service flows network forwarding path instance; The position determination unit is specifically used for: sorting each of the service flow network forwarding path instances according to the delay required by the at least two service flow network forwarding path instances; Obtain the deployment plan of the service flow instance that meets the minimum delay; In the deployment scheme of the service flow instance that meets the minimum delay, obtain deployment schemes of other service flow instances other than the service flow instance that meets the minimum delay; Determine the location of the data center for deploying the virtual network function according to the acquired deployment scheme of other service flow instances other than the service flow instance that meets the minimum delay. 32. An apparatus for quality of service planning based on a service flow, wherein the apparatus has all the features of the apparatus according to any one of claims 25 to 30, and the service flow instance includes at least two service flows network forwarding path instance; The position determination unit is also used for: sorting each of the service flow network forwarding path instances according to the hop counts of the at least two service flow network forwarding path instances; Obtain the deployment scheme of the service flow instance that meets the maximum hop count; In the deployment scheme of the service flow instance that satisfies the maximum hop count, obtain deployment schemes of other service flow instances other than the service flow instance that satisfies the maximum hop count; Determine the location of the data center for deploying the virtual network function according to the acquired deployment scheme of the service flow instance other than the service flow instance satisfying the maximum hop count. 33. An apparatus for quality of service planning based on a service flow, wherein the apparatus has all the features of the apparatus according to any one of claims 25 to 30, and the service flow instance includes at least two service flows network forwarding path instance; The position determination unit is also used for: sorting each of the service flow network forwarding path instances according to the delay required by the at least two service flow network forwarding path instances; Sorting the network forwarding path instances of the service flow with the same delay according to the hop count of the at least two service flow network forwarding path instances; Obtain the deployment scheme of the service flow instance that satisfies the minimum delay and the maximum hop count, and uses the obtained deployment scheme of the service flow instance that meets the minimum delay and the maximum hop count as the first deployment scheme; In the first deployment scheme, a deployment scheme of other service flow instances other than the service flow instance that satisfies the minimum delay and the maximum hop count is obtained, and the obtained service flow instance that meets the minimum delay and the maximum hop count is used. The deployment scheme of other business flow instances other than the business flow instance is used as the second deployment scheme; According to the second deployment solution, the location of the data center where the virtual network function is deployed is determined. 34. An apparatus for quality of service planning based on a service flow, wherein the apparatus has all the features of the apparatus according to any one of claims 25 to 30, and the service flow instance includes at least two service flows network forwarding path instance; The position determination unit is also used for: sorting each of the service flow network forwarding path instances according to the hop counts of the at least two service flow network forwarding path instances; Sorting the service flow network forwarding path instances with the same hop count according to the delay required by the at least two service flow network forwarding path instances; obtaining a deployment solution for the service flow instance that satisfies the maximum hop count and minimum delay, and using the obtained deployment solution for the service flow instance that meets the maximum hop count and minimum delay as the first deployment solution; In the first deployment scheme, a deployment scheme of other service flow instances other than the service flow instance that satisfies the maximum hop count and the minimum delay is obtained, and the obtained service flow instance that meets the maximum hop count and the minimum delay is used. The deployment scheme of other business flow instances other than the business flow instance is used as the second deployment scheme; According to the second deployment solution, the location of the data center where the virtual network function is deployed is determined. 35. An apparatus for quality of service planning based on a service flow, wherein the apparatus has all the features of the apparatus according to any one of claims 24 to 34, and the request sending unit sends a message to a virtual infrastructure manager Send a resource reservation request, specifically for: The resource reservation request is sent to the virtual infrastructure manager through the generating resource reservation operation of the virtual resource management interface, so that the virtual infrastructure manager detects all the resources according to the data center location of the virtual network function. Whether the network resources required for the virtual network function interconnection are available, when the network resources required for the virtual network function interconnection are available, the virtual infrastructure manager reserves the network resources required for the virtual network function interconnection, so The virtual infrastructure manager pre-tests the reserved network resources, and when the service quality of the virtual connection meets the requirements, the virtual infrastructure manager feeds back the resource reservation success response information. 36. A service flow-based service quality planning device, characterized in that the device has all the features of the device according to any one of claims 24 to 35, and the request sending unit sends a request to a virtual infrastructure manager Send a resource reservation request, specifically for: When a pre-allocated virtual network function instance list is determined, and the virtual network function instance list includes at least one virtual network function instance, detecting resources required for instantiation of the virtual network function according to the data center location of the virtual network function is it effective; The resource reservation request is sent to the virtual infrastructure manager when the resources required for instantiation of the virtual network function are available. 37. An apparatus for quality of service planning based on a service flow, wherein the apparatus has all the features of the apparatus according to any one of claims 24 to 36, and the request sending unit sends the request to the virtual infrastructure The manager sends an instantiation request to the virtual connection, specifically for: Send a virtual connection network connection instantiation request to the virtual infrastructure manager through an operation of applying for a resource or updating a resource on the virtual resource management interface, so that the virtual infrastructure manager performs the connection network required by the network service. instantiate. 38. An apparatus for quality of service planning based on service flow, characterized in that, the apparatus has all the features of the apparatus according to any one of claims 24 to 37, and the request sending unit sends the request to the virtual infrastructure The manager sends an instantiation request to the virtual network function, specifically for: Sending a virtual network function network connection instantiation request to the virtual infrastructure manager through an operation of applying for a resource or updating a resource of the virtual resource management interface, so that the virtual infrastructure manager is connected to the external interface of the virtual network function, And connect the required virtual deployment unit to the connection network required by the network service. 39. An apparatus for quality of service planning based on traffic flow, characterized in that the apparatus has all the features of the apparatus according to any one of claims 24 to 37, and the apparatus further comprises: The instantiating unit is configured to, after receiving the resource reservation success response information fed back by the virtual infrastructure manager in response to the resource reservation request, when determining a list of pre-allocated virtual network function instances, and the virtual network function When the instance list includes at least one virtual network function instance, location parameter information is added during the process of invoking the instantiated virtual network function operation of the virtual network function lifecycle management interface, where the location parameter information includes the data center location of the virtual network function , to instantiate the virtual network function. 40. An apparatus for quality of service planning based on traffic flow, characterized in that, the apparatus has all the features of the apparatus according to any one of claims 24 to 39, and the apparatus further comprises: The expansion and expansion unit is configured to expand or reduce the capacity of the network service at the corresponding position of the network element related to the network service when receiving a capacity expansion request or a capacity reduction request for the network service. 41. An apparatus for quality of service planning based on traffic flow, characterized in that, the apparatus has all the features of the apparatus according to any one of claims 24 to 39, and the apparatus further comprises: a resource amount determination unit, configured to determine that the remaining resource amount of the data center where the virtual network function is located is less than a preset threshold when receiving a capacity expansion request for the network service; a request generating unit, configured to generate an instantiated request for the network service. 42. An apparatus for quality of service planning based on traffic flow, characterized in that, the apparatus has all the features of the apparatus according to any one of claims 24 to 41, and, After the location determination unit determines the location of the data center deployed on the virtual network function according to the remaining resources of each data center, it is further configured to determine the location of the data center of the virtual connection according to the location of the data center of the virtual network function. 43. The apparatus of claim 42, wherein the location determining unit determines the data center location of the virtual connection according to the data center location of the virtual network function, and is specifically configured to: When two virtual network functions are deployed in a data center managed by the same virtual infrastructure manager, the data center location of the virtual connection between the two virtual network functions is the same as the data center location of the two virtual network functions ; When two virtual network functions are deployed in data centers managed by different virtual infrastructure managers, the data center location of the virtual connection between the two virtual network functions is determined by the wide area network infrastructure manager. 44. An apparatus for quality of service planning based on traffic flow, characterized in that the apparatus has all the features of the apparatus according to any one of claims 24 to 43, and, The request sending unit is further configured for the location determining unit to send a resource reservation request to the WAN infrastructure manager after determining the location of the data center where the virtual network function is deployed according to the remaining resources of each of the data centers. The resource reservation request is used to indicate the network resources required for reserving the virtual private network; The request sending unit is further configured to, when receiving the resource reservation success response information fed back by the WAN infrastructure manager in response to the resource reservation request, send a request to the WAN infrastructure manager for the virtual Instantiate requests for private networks; The information receiving unit is further configured to receive instantiation response information fed back by the WAN infrastructure manager in response to the instantiation request for the virtual private network. 45. The apparatus according to claim 44, wherein the request sending unit sends a resource reservation request to the WAN infrastructure manager, which can be specifically: Send the resource reservation request to the WAN infrastructure manager, so that the WAN infrastructure manager detects whether the virtual private network resources between the various data centers are available according to the data center location of the virtual network function, and when all When the virtual private network resources between the data centers are available, the WAN infrastructure manager reserves the virtual private network resources between the data centers, and the WAN infrastructure manager pre-tests the reserved network resources , when the service quality of the virtual private network meets the requirements, the WAN infrastructure manager feeds back the resource reservation success response information. 46. The apparatus according to claim 44 or 45, wherein the request sending unit sends an instantiation request for the virtual private network to the WAN infrastructure manager, which may specifically be: Send a virtual private network connection instantiation request to the WAN infrastructure manager through an operation of applying for resources or updating resources on the virtual resource management interface, so that the WAN infrastructure manager instantiates the connection network required by the network service . 47. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program, which can implement the method of any one of claims 1 to 23 when the computer program is executed by hardware .

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