CN105812286B

CN105812286B - Method and network device for determining service bandwidth in IP network

Info

Publication number: CN105812286B
Application number: CN201410856396.XA
Authority: CN
Inventors: 吴军
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2014-12-31
Filing date: 2014-12-31
Publication date: 2019-06-11
Anticipated expiration: 2034-12-31
Also published as: WO2016107368A1; CN105812286A

Abstract

The invention discloses service bandwidths in a kind of IP network to determine method and the network equipment, to improve the port bandwidth resource utilization of the network equipment in IP network in the subsystem of each level, meet the demand for the business that there are different convergence attributes in same port carrying.This method are as follows: the network equipment determines type of service belonging to the business of the bandwidth resources of request first port, and obtains the preset bandwidth convergence ratio of the corresponding type of service and obtain the corresponding committed information rate CIR bandwidth of the type of service；The network equipment determines the business in the CIR bandwidth of the first port, the CIR bandwidth according to the determining business in the first port reserves bandwidth for the traffic assignments according to the bandwidth convergence ratio and the CIR bandwidth.

Description

Service bandwidth determines method and the network equipment in a kind of IP network

Technical field

The present invention relates to field of communication technology more particularly to a kind of Internet protocol (Internet Protocol, abbreviations IP) service bandwidth determines method and the network equipment in network.

Background technique

In IP network framework as shown in Figure 1, in addition to carrying Generation Mobile Telecommunication System (2nd Generation, abbreviation 2G), 3G (Third Generation) Moblie (3rd Generation, abbreviation 3G), forth generation mobile communication (4rd Generation, abbreviation: 4G) outside the business such as network, WLAN (Wireless Local Area Networks, abbreviation WLAN) and broadband upstream, The business such as enterprise's special line are also carried, the bandwidth resources of IP network are competed between each business, to guarantee that business can be run.

In order to guarantee the transmission quality of business, there is the solution that following two is traditional:

The first: the bandwidth ability by expanding each node in IP network guarantees that each business occupies enough bandwidth, the party Case will cause the reduction of network overall bandwidth utilization rate, and network construction cost is excessively high.

Second, different Business Streams is distinguished in bearer network, and different bandwidth allocations is provided for different Business Streams Mechanism, the different grades of service and different forwarding strategies are controlled by the fine-grained management to Business Stream, are improved end-to-end Network bandwidth utilization factor.

In second of solution, IP network is needed to provide business end to end from access ring, convergence ring to core ring Bandwidth guaranteed, main method are that different business is carried using different tunnels (Tunnel), are held end to end for tunnel configuration Promise information rate (Committed Information Rate, abbreviation CIR) bandwidth.

When to 2G, 3G, 4G and enterprise's private line service configuration CIR bandwidth, according to access ring, the level of convergence ring and core ring With the CIR bandwidth of 1:1:1 configured tunneling technique, such as 2G business is 3M, 3G in the CIR bandwidth of access ring, convergence ring and core ring Business is 30M in the CIR bandwidth of access ring, convergence ring and core ring, and 4G business is in access ring, convergence ring and core ring CIR bandwidth is 80M, the band width configuration access ring that enterprise's private line service is bought according to client, the CIR band for converging ring and core ring It is wide.

Also, the reserved bandwidth of each network port is configured according to the convergence ratio of 4G, it is assumed that network port physics in access ring The 50% of bandwidth is used as reserved bandwidth, converges 67% of network port band width in physical in ring and is used as reserved bandwidth, net in core ring The 100% of network ports physical bandwidth is used as reserved bandwidth.

Assuming that the CIR bandwidth of new business is indicated with B1, the reserved bandwidth of the network port indicates that the network port is with B The sum of CIR bandwidth for the business being configured indicates with B2, then when meeting relationship: when B1≤B-B2, then it represents that the network port can Band width in physical can satisfy the demand of the new business, and otherwise, then available band width in physical cannot expire in the network port The demand of the foot new business.

Second of solution is suitable for carrying the scene of single business, if the end in access ring, convergence ring and core ring Mouthpiece carrier has the business of different convergence attributes, and access ring, convergence ring and core ring configure the CIR band of each business according to 1:1:1 Width, and plan according to the convergence ratio of 4G business the reserved bandwidth of each business, it is low to may result in each network port bandwidth availability ratio. Assuming that the 50% of network port band width in physical be used as reserved bandwidth in access ring, converge 67% of the network port in ring be used as it is reserved Bandwidth, then the bandwidth availability ratio of access ring and convergence ring is lower；Assuming that the 100% of the network port being used as reserved band in access ring Width needs to improve the band width in physical of the network port in convergence ring and core ring when planning, it will causes in convergence ring and core ring The waste of network port bandwidth resources.

Summary of the invention

The embodiment of the present invention provides service bandwidth in a kind of IP network and determines method and the network equipment, to improve IP network In each level subsystem in the network equipment port bandwidth resource utilization, meet same port carrying have difference The demand of the business of convergence attribute.

Specific technical solution provided in an embodiment of the present invention is as follows:

In a first aspect, providing service bandwidth in a kind of Internet protocol IP network determines method, comprising:

Type of service belonging to the business of the bandwidth resources of network equipment determination request first port, and obtain described in correspondence The preset bandwidth convergence ratio of type of service and the corresponding committed information rate CIR bandwidth of the acquisition type of service；

The network equipment determines the business described first according to the bandwidth convergence ratio and the CIR bandwidth The CIR bandwidth of port, the CIR bandwidth according to the determining business in the first port reserve band for the traffic assignments It is wide.

With reference to first aspect, in the first possible implementation, the network equipment is according to the determining business It is that the traffic assignments reserve bandwidth in the CIR bandwidth of the first port, comprising:

The network equipment calculates the aggregate reservation bandwidth and the allocated reserved band of the first port of the first port Wide difference determines that obtained difference is greater than or equal to the business in the CIR bandwidth of the first port, exists according to the business The CIR bandwidth of the first port is that the traffic assignments reserve bandwidth.

The possible implementation of with reference to first aspect the first, in the second possible implementation, the network Equipment determines that obtained difference is greater than or equal to the business after the CIR bandwidth of the first port, exists according to the business Before the CIR bandwidth of the first port is the reserved bandwidth of the traffic assignments, the method also includes:

It is allocated in the CIR bandwidth of the first port and the first port that the network equipment calculates the business The sum of reserved bandwidth determines that obtain and value is not more than the bandwidth availability threshold value of the first port.

With reference to first aspect to second of possible implementation, in the third possible implementation, the IP network Network includes access ring, converges ring and core ring；

If the affiliated subsystem of first port is access ring, the network equipment acquisition type of service is corresponding to be held Promise information rate CIR bandwidth, comprising:

The network equipment obtains the corresponding preset CIR bandwidth of type of service；

If the affiliated subsystem of first port is convergence ring, the network equipment acquisition type of service is corresponding to be held Promise information rate CIR bandwidth, comprising:

The network equipment obtains type of service corresponding CIR bandwidth in the affiliated subsystem of second port, described The affiliated subsystem of second port is access ring；

If the affiliated subsystem of first port is core ring, the network equipment acquisition type of service is corresponding to be held Promise information rate CIR bandwidth, comprising:

The network equipment obtains type of service corresponding CIR bandwidth in the affiliated subsystem of third port, described The affiliated subsystem of third port is convergence ring.

The third possible implementation with reference to first aspect, in the fourth possible implementation, the correspondence The preset bandwidth convergence ratio of type of service is configured by network management system or software defined network SDN Centralized Controller.

Second aspect provides the network equipment in a kind of Internet protocol IP network, comprising:

Determining module, for determining type of service belonging to the business for the bandwidth resources for requesting first port, and acquisition pair It answers the preset bandwidth convergence ratio of the type of service and obtains the corresponding committed information rate CIR bandwidth of the type of service；

Distribution module, for determining the business described first according to the bandwidth convergence ratio and the CIR bandwidth The CIR bandwidth of port, the CIR bandwidth according to the determining business in the first port reserve band for the traffic assignments It is wide.

In conjunction with second aspect, in the first possible implementation, the distribution module is specifically used for:

Calculate the aggregate reservation bandwidth of the first port and the difference of the allocated reserved bandwidth of the first port, determining The difference arrived is greater than or equal to the business in the CIR bandwidth of the first port, according to the business in the first port CIR bandwidth be the traffic assignments reserve bandwidth.

In conjunction with the first possible implementation of second aspect, in the second possible implementation, the distribution Module is also used to:

Determine that obtained difference is greater than or equal to the business after the CIR bandwidth of the first port, according to the industry It is engaged in the CIR bandwidth of the first port being before the traffic assignments reserve bandwidth, to calculate the business in the first end Mouthful CIR bandwidth and the allocated reserved bandwidth of the first port and, determine obtain and value be not more than the first end The bandwidth availability threshold value of mouth.

In conjunction with second aspect to second of possible implementation, in the third possible implementation, the IP network Network includes access ring, converges ring and core ring；

If the affiliated subsystem of first port is access ring, the determining module is specifically used for:

Obtain the corresponding preset CIR bandwidth of type of service；

If the affiliated subsystem of first port is convergence ring, the determining module is specifically used for:

The type of service corresponding CIR bandwidth in the affiliated subsystem of second port is obtained, belonging to the second port Subsystem is access ring；

If the affiliated subsystem of first port is core ring, the determining module is specifically used for:

The type of service corresponding CIR bandwidth in the affiliated subsystem of third port is obtained, belonging to the third port Subsystem is convergence ring.

In conjunction with the third possible implementation of second aspect, in the fourth possible implementation, the correspondence The preset bandwidth convergence ratio of type of service is configured by network management system or software defined network SDN Centralized Controller.

Based on the above-mentioned technical proposal, in the embodiment of the present invention, the network equipment in IP network determines request first port After type of service belonging to the business of bandwidth resources, by obtaining the preset bandwidth convergence ratio of the corresponding type of service and acquisition The corresponding committed information rate CIR bandwidth of the type of service, determining according to the bandwidth convergence ratio of acquisition and the CIR bandwidth should Business first port CIR bandwidth, according to the determining business the first port CIR bandwidth be the traffic assignments it is pre- Bandwidth is stayed, so as to be that traffic assignments reserve bandwidth according to the convergence attribute of business, can be provided according to the bandwidth of business demand Source carries out the bandwidth resources planning of each level subsystem, reduces network construction cost.Also, it is corresponding by pre-set business type Bandwidth convergence ratio can be realized to end to end convergence planning, reduce the O&M cost of Bandwidth plan.In addition, for having The type of service of different convergence attributes presets different bandwidth convergence ratios, and can satisfy has different convergences in same port carrying The demand of the business of attribute.

Detailed description of the invention

Fig. 1 is IP network configuration diagram；

Fig. 2 is the method detailed flow diagram that the network equipment determines service bandwidth in the embodiment of the present invention；

Fig. 3 is MPLS/MPLS-TP network architecture schematic diagram in the embodiment of the present invention；

Fig. 4 is network equipment infrastructure schematic diagram in the embodiment of the present invention；

Fig. 5 is another network equipment infrastructure schematic diagram in the embodiment of the present invention.

Specific embodiment

To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into It is described in detail to one step, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole implementation Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts All other embodiment, shall fall within the protection scope of the present invention.

As shown in Fig. 2, the embodiment of the present invention, which provides service bandwidth in a kind of IP network, determines method, comprising:

Step 201: the network equipment determines type of service belonging to the business of the bandwidth resources of request first port, and obtains It corresponds to the preset bandwidth convergence ratio of the type of service and obtains the corresponding CIR bandwidth of the type of service.

IP network can for multiprotocol label switching (Multi-Protocol Label Switching, abbreviation MPLS)/ Multiprotocol label switching-transmission architecture (Multi-Protocol Label Switching Transport Profile, referred to as MPLS-TP) network.

Wherein, IP network includes following subsystem: access ring, convergence ring and core ring.

In a specific implementation, if the affiliated subsystem of the first port of the network equipment is access ring, the network equipment is obtained The corresponding determining preset CIR bandwidth of type of service, the CIR band of first port is determined according to the CIR bandwidth and bandwidth convergence ratio It is wide；

If the affiliated subsystem of the first port of the network equipment is convergence ring, the network equipment obtains corresponding type of service second Corresponding CIR bandwidth in the affiliated subsystem in port, the affiliated subsystem of the second port is access ring, according to the CIR bandwidth and band Wide convergence ratio determines the CIR bandwidth of first port；

If the affiliated subsystem of the first port of the network equipment is core ring, the network equipment obtains corresponding type of service in third Corresponding CIR bandwidth in the affiliated subsystem in port, the affiliated subsystem of the third port is convergence ring, according to the CIR bandwidth and band Wide convergence ratio determines the CIR bandwidth of first port.

In another specific implementation, pre-set business type in each network equipment of access ring, convergence ring and core ring Corresponding CIR bandwidth, the preset CIR bandwidth are to access the CIR bandwidth of central port, and the network equipment is according to the preset CIR band Bandwidth convergence ratio that is wide and obtaining determines the CIR bandwidth of first port.

In the embodiment of the present invention, the corresponding preset bandwidth convergence ratio of type of service is less than or equal to 1.

Specifically, in the network equipment pre-set business type and bandwidth convergence ratio corresponding relationship, for needing convergent industry The preset bandwidth convergence ratio of service type is less than 1；For not needing the preset bandwidth convergence ratio of convergent type of service equal to 1.

For example, for 3G business and the preset bandwidth convergence ratio of 4G business less than 1；For 2G business and enterprise's private line service Preset bandwidth convergence ratio is equal to 1.

In one specific implementation, pre-set business type, the affiliated subsystem in port or port and bandwidth restrain in the network equipment The corresponding relationship of ratio.

The network equipment determines that the type of service of business is not present invention content of interest in the embodiment of the present invention, specifically In implementation, service identification is carried in business datum, the network equipment is determined according to the corresponding relationship of service identification and type of service Type of service belonging to business.

Step 202: the network equipment determines the business in first port according to the bandwidth convergence ratio and CIR bandwidth of acquisition CIR bandwidth, according to the determining business the first port CIR bandwidth be the traffic assignments reserve bandwidth.

Specifically, the CIR bandwidth that the network equipment will acquire is incited somebody to action multiplied by the preset bandwidth convergence ratio of the type of service is directed to The result arrived as the business first port CIR bandwidth.

Preferably, the network equipment calculates the aggregate reservation bandwidth and the allocated reserved bandwidth of the first port of first port Difference, however, it is determined that obtained difference is greater than or equal to the business in the CIR bandwidth of first port, according to the business in first port CIR bandwidth is that the traffic assignments reserve bandwidth；If it is determined that obtained difference is less than the business in the CIR bandwidth of first port, refuse It is absolutely that the traffic assignments reserve bandwidth in the first port.

Wherein, the aggregate reservation bandwidth of first port is the band width in physical of first port.

Optionally, the network equipment determines that obtained difference is greater than or equal to the business after first port CIR bandwidth, calculates The business first port CIR bandwidth and the allocated reserved bandwidth of the first port and, however, it is determined that obtain with value not It is then the traffic assignments in the CIR bandwidth of first port according to the business greater than the bandwidth availability threshold value of the first port Reserved bandwidth；Otherwise, refusal is that the traffic assignments reserve bandwidth in first port.

In specific implementation, network management system or software defined network (Soft Defined Network, abbreviation can be passed through SDN) Centralized Controller is each port configuration service type in each network equipment in access ring, convergence ring and core ring With the corresponding relationship of bandwidth convergence ratio；Alternatively, the corresponding relationship of type of service and bandwidth convergence ratio is respectively configured the network equipment To a network equipment in each subsystem (access ring, convergence ring and core ring), type of service is obtained in each subsystem Other network equipments being allocated to the configuration information with the network equipment of bandwidth convergence ratio this configuration information in the subsystem.

For example, convergence loop network side ports determine that bandwidth on demand provides in the MPLS/MPLS-TP network architecture as shown in Figure 3 Type of service belonging to the business in source is 4G business, and determines the corresponding preset access ring of 4G business and converge the CIR bandwidth of ring Than converging loop network side ports point if the CIR bandwidth that access ring network-side port distributes to the business is 80,000,000 (M) for 4:3 The CIR bandwidth of the dispensing business is 60M；Core loop network side ports determine service class belonging to the business of bandwidth on demand resource Type is 4G business, and determines that the CIR bandwidth ratio of the preset convergence ring of corresponding 4G business and core ring is 3:2, if convergence loop network The CIR bandwidth that side ports distribute to the business is 60M, then core loop network side ports distribute to the CIR bandwidth of the business and are 40M。

In the embodiment, the network equipment in IP network (especially MPLS/MPLS-TP network) determines request first port Bandwidth resources business belonging to after type of service, by obtaining the preset bandwidth convergence ratio of the corresponding type of service and obtaining The corresponding committed information rate CIR bandwidth of the type of service is taken, is determined according to the bandwidth convergence ratio of acquisition and the CIR bandwidth The business first port CIR bandwidth, according to the determining business the first port CIR bandwidth be the traffic assignments Reserved bandwidth can be according to the bandwidth of business demand so as to be that traffic assignments reserve bandwidth according to the convergence attribute of business Resource carries out the bandwidth resources planning of each level subsystem, advantageously reduces the bandwidth of the network equipment in convergence ring and core ring Planning greatly reduces the lower deployment cost of network equipment port in convergence ring and core ring, reduces network construction cost.

Also, it can be realized by the corresponding bandwidth convergence ratio of pre-set business type and convergence end to end planned, for Type of service with different convergence attributes presets different bandwidth convergence ratios, and can satisfy has difference in same port carrying The demand of the business of convergence attribute reduces the O&M cost of Bandwidth plan.

Based on the same inventive concept, the embodiment of the invention also provides the network equipment in a kind of IP network, for realizing Service bandwidth determines method in present invention IP network shown in Fig. 2, as shown in figure 4, the network equipment specifically includes that

Determining module 401 for determining type of service belonging to the business for the bandwidth resources for requesting first port, and obtains It corresponds to the preset bandwidth convergence ratio of the type of service and obtains the corresponding committed information rate CIR band of the type of service It is wide；

Distribution module 402, for determining the business described according to the bandwidth convergence ratio and the CIR bandwidth The CIR bandwidth of first port, it is reserved for the traffic assignments in the CIR bandwidth of the first port according to the determining business Bandwidth.

IP network can be MPLS/MPLS-TP network.

Obtain the corresponding preset CIR bandwidth of type of service；

The distribution module is particularly used in:

The distribution module can also be used in:

Specifically, the CIR bandwidth that the distribution module obtains determining module is multiplied by for the preset band of the type of service Wide convergence ratio, the CIR bandwidth using obtained result as the business in the affiliated subsystem of first port.

The bandwidth convergence ratio is less than or equal to 1.

The aggregate reservation bandwidth of the first port can be the band width in physical of the first port.

In specific implementation, the corresponding preset bandwidth convergence ratio of type of service is by network management system or SDN Centralized Controller Configuration.

Based on the same inventive concept, the embodiment of the invention also provides the network equipments in another IP network, for real Service bandwidth determines method in existing present invention IP network shown in Fig. 2, as shown in figure 5, the network equipment include processor 501, Memory 502 and communication interface 503, processor 501, memory 502, communication interface 503 are connected with each other by bus 504；Always Line 504 can be Peripheral Component Interconnect standard (peripheral component interconnect, abbreviation PCI) bus or Expanding the industrial standard structure (extended industry standard architecture, abbreviation EISA) bus etc..It is described Bus can be divided into address bus, data/address bus, control bus etc..Only to be indicated with a thick line in Fig. 5 convenient for indicating, but It is not offered as only a bus or a type of bus.

Memory 502, for storing program.Specifically, program may include program code, and said program code includes meter Calculation machine operational order.Memory 502 may include random access memory (random access memory, abbreviation RAM), It may further include nonvolatile memory (non-volatile memory), for example, at least a magnetic disk storage.

Communication interface 503 with other equipment for being communicated, it may also be used for receives service request.

Processor 501 executes the program that memory 502 is stored, for realizing in IP network provided in an embodiment of the present invention Service bandwidth determines method, comprising:

It determines type of service belonging to the business of the bandwidth resources of request first port, and obtains the corresponding type of service Preset bandwidth convergence ratio and the corresponding committed information rate CIR bandwidth of the acquisition type of service；

According to the bandwidth convergence ratio and the CIR bandwidth, determine the business in the CIR band of the first port Width, the CIR bandwidth according to the determining business in the first port reserve bandwidth for the traffic assignments.

IP network can be MPLS/MPLS-TP network.

If the affiliated subsystem of first port is access ring, it is preset that processor 501 obtains the corresponding type of service CIR bandwidth determines the CIR bandwidth of first port according to the CIR bandwidth and bandwidth convergence ratio；

If the affiliated subsystem of first port is convergence ring, processor 501 obtains the type of service in second port Corresponding CIR bandwidth in affiliated subsystem, the affiliated subsystem of second port is access ring, according to the CIR bandwidth of acquisition And bandwidth convergence ratio determines the CIR bandwidth of first port；

If the affiliated subsystem of first port is core ring, processor 501 obtains the type of service in third port Corresponding CIR bandwidth in affiliated subsystem, the affiliated subsystem of third port is convergence ring, according to the CIR bandwidth of acquisition And bandwidth convergence ratio determines the CIR bandwidth of first port.

Processor 501 calculates the aggregate reservation bandwidth and the allocated reserved bandwidth of the first port of the first port Difference determines that obtained difference is greater than or equal to the business in the CIR bandwidth of the first port, according to the business described The CIR bandwidth of first port is that the traffic assignments reserve bandwidth.

Processor 501 determines that obtained difference is greater than or equal to the business after the CIR bandwidth of the first port, presses According to the business before the CIR bandwidth of the first port is the reserved bandwidth of the traffic assignments, the business is calculated in institute State first port CIR bandwidth and the allocated reserved bandwidth of the first port and, determine obtain and value be not more than institute State the bandwidth availability threshold value of first port.

The CIR bandwidth for the business that processor 501 will acquire, will multiplied by the preset bandwidth convergence ratio of the type of service is directed to Obtained result as the business first port CIR bandwidth.

The bandwidth convergence ratio is less than or equal to 1.

Memory 502 can be also used for saving the corresponding relationship of preset type of service Yu bandwidth convergence ratio.Wherein, for Need the preset bandwidth convergence ratio of convergent type of service less than 1；It is received for not needing the preset bandwidth of convergent type of service It holds back than being equal to 1.

It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more, The shape for the computer program product implemented in usable storage medium (including but not limited to magnetic disk storage and optical memory etc.) Formula.

The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.

Obviously, various changes and modifications can be made to the invention without departing from model of the invention by those skilled in the art It encloses.In this way, if these modifications and changes of the present invention is within the scope of the claims of the present invention and its equivalent technology, then The present invention is also intended to include these modifications and variations.

Claims

1. a method for determining service bandwidth in an internet protocol IP network, is characterized in that, comprising:

The network device determines the service type to which the service requesting the bandwidth resource of the first port belongs, obtains the preset bandwidth convergence ratio corresponding to the service type, and obtains the committed information rate CIR bandwidth corresponding to the service type; wherein, the IP network Including an access ring, an aggregation ring and a core ring; the preset bandwidth convergence ratio corresponding to the service type includes the CIR bandwidth ratio of the access ring and the aggregation ring, and/or the CIR bandwidth ratio of the aggregation ring and the core ring;

The network device takes the product of the bandwidth convergence ratio and the committed information rate (CIR) bandwidth corresponding to the service type as the CIR bandwidth of the service on the first port, and takes the product of the service on the first port according to the CIR bandwidth of the service on the first port. The CIR bandwidth reserves the bandwidth for the service allocation.

2. The method according to claim 1, wherein the network device allocates a reserved bandwidth for the service according to the determined CIR bandwidth of the service on the first port, comprising:

The network device calculates the difference between the total reserved bandwidth of the first port and the reserved bandwidth allocated to the first port, and determines that the obtained difference is greater than or equal to the CIR bandwidth of the service on the first port , allocate a reserved bandwidth for the service according to the CIR bandwidth of the service on the first port.

3. The method according to claim 2, wherein after the network device determines that the obtained difference value is greater than or equal to the CIR bandwidth of the service on the first port, according to the service on the first port Before the CIR bandwidth of the port allocates the reserved bandwidth for the service, the method further includes:

The network device calculates the sum of the CIR bandwidth of the service on the first port and the reserved bandwidth allocated by the first port, and determines that the obtained sum is not greater than the bandwidth availability threshold of the first port value.

4. The method according to any one of claims 1-3, wherein if the subsystem to which the first port belongs is an access ring, the network device obtains the committed information rate (CIR) bandwidth corresponding to the service type ,include:

obtaining, by the network device, a preset CIR bandwidth corresponding to the service type;

If the subsystem to which the first port belongs is an aggregation ring, the network device obtains the committed information rate CIR bandwidth corresponding to the service type, including:

obtaining, by the network device, the CIR bandwidth corresponding to the service type in the subsystem to which the second port belongs, and the subsystem to which the second port belongs is an access ring;

If the subsystem to which the first port belongs is a core ring, the network device obtains the committed information rate CIR bandwidth corresponding to the service type, including:

The network device acquires the CIR bandwidth corresponding to the service type in the subsystem to which the third port belongs, and the subsystem to which the third port belongs is an aggregation ring.

5 . The method according to claim 4 , wherein the preset bandwidth convergence ratio corresponding to the service type is configured by a network management system or a software-defined network SDN centralized controller. 6 .

6. A network device in an Internet Protocol IP network, characterized in that, comprising:

A determination module, configured to determine the service type to which the service requesting the bandwidth resource of the first port belongs, and obtain the preset bandwidth convergence ratio corresponding to the service type and obtain the committed information rate CIR bandwidth corresponding to the service type; The IP network includes an access ring, a convergence ring and a core ring; the preset bandwidth convergence ratio corresponding to the service type includes the CIR bandwidth ratio of the access ring and the convergence ring, and/or, the CIR bandwidth ratio of the convergence ring and the core ring ;

an allocation module, configured to use the bandwidth convergence ratio and the committed information rate CIR bandwidth corresponding to the service type as the CIR bandwidth of the service on the first port, and according to the determined service on the first port The CIR bandwidth is reserved for the service allocation.

7. The network device according to claim 6, wherein the allocation module is specifically used for:

Calculate the difference between the total reserved bandwidth of the first port and the reserved bandwidth allocated by the first port, and determine that the obtained difference is greater than or equal to the CIR bandwidth of the service on the first port, according to the The CIR bandwidth of the service on the first port allocates a reserved bandwidth for the service.

8. The network device according to claim 7, wherein the distribution module is further configured to:

After it is determined that the obtained difference is greater than or equal to the CIR bandwidth of the service on the first port, and before allocating the reserved bandwidth for the service according to the CIR bandwidth of the service on the first port, calculate the It is determined that the sum of the CIR bandwidth of the first port and the reserved bandwidth allocated to the first port is not greater than the bandwidth availability threshold value of the first port.

9. The network device according to any one of claims 6-8, wherein if the subsystem to which the first port belongs is an access ring, the determining module is specifically configured to:

Obtain the preset CIR bandwidth corresponding to the service type;

If the subsystem to which the first port belongs is an aggregation ring, the determining module is specifically configured to:

obtaining the CIR bandwidth corresponding to the service type in the subsystem to which the second port belongs, where the subsystem to which the second port belongs is an access ring;

If the subsystem to which the first port belongs is a core ring, the determining module is specifically configured to:

Obtain the CIR bandwidth corresponding to the service type in the subsystem to which the third port belongs, where the subsystem to which the third port belongs is an aggregation ring.

10 . The network device according to claim 9 , wherein the preset bandwidth convergence ratio corresponding to the service type is configured by a network management system or a software-defined network SDN centralized controller. 11 .