CN115361319A - SNMP-based network equipment performance analysis method, device and equipment - Google Patents
SNMP-based network equipment performance analysis method, device and equipment Download PDFInfo
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- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/02—Standardisation; Integration
- H04L41/0213—Standardised network management protocols, e.g. simple network management protocol [SNMP]
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- H—ELECTRICITY
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Abstract
The invention belongs to the field of digital information transmission, and particularly discloses a network equipment performance analysis method, a device and equipment based on SNMP (simple network management protocol). An analysis module reads a corresponding flow link data table and an equipment index information table in a storage module through a target equipment IP (Internet protocol) or target interface identifier, inquires specified flow data and index data, and performs flow performance analysis on target network equipment or equipment interfaces; the flow link data table comprises equipment flow data, a corresponding equipment IP, interface flow data and a corresponding interface identifier; the flow link data table is updated regularly according to an acquisition module of the access network equipment; the equipment index information table comprises equipment index data, corresponding equipment IP, interface index data and corresponding interface identification; the equipment index information table is generated immediately according to the SNMP request, and the purpose of quickly analyzing the equipment performance and the interface performance containing the flow data by taking the equipment as a view angle is achieved.
Description
Technical Field
The invention relates to network equipment performance analysis, in particular to a network equipment performance analysis method, a device and equipment based on SNMP.
Background
Network performance analysis of SNMP (Simple Network Management Protocol) Network devices is mainly divided into two types, one type is from a Network device side, relies on OID (object identifier) indexes of an MIB (Management information base), acquires data through an SNMP request, and mainly shows state performance of a device side or an interface side, such as system name, system description, system running time, CPU occupancy, memory utilization, interface number, and the like, so as to perform state analysis; if the network device needs to perform traffic analysis, the network device needs to capture a traffic data packet passing through the device from a traffic data packet side through a network monitoring function of other intervening devices to perform traffic analysis, but this method cannot be immediately combined with other state performances of the network device to perform analysis, and cannot distinguish traffic data of device interfaces, and if a user wants to further analyze traffic of a specific interface of the device, no way is available. Therefore, there is no method for analyzing other status performances by combining traffic data of network devices and specific interfaces, which can be performed on the device side.
Disclosure of Invention
The invention provides a network equipment performance analysis method, a device and equipment based on SNMP, which realize the rapid flow performance analysis of the network equipment and equipment interfaces from the equipment side and the interface side and are realized by the following technical scheme:
in one aspect, the application provides a method for analyzing network device performance based on SNMP, comprising:
reading a corresponding flow link data table and an equipment index information table in a storage module through a target equipment IP or a target interface identifier, inquiring specified flow data and index data, and carrying out flow performance analysis on target network equipment or an equipment interface;
the flow link data table comprises equipment flow data, corresponding equipment IP, interface flow data and corresponding interface identification;
the flow link data table is updated according to an acquisition module of the access network equipment;
the equipment index information table comprises equipment index data and corresponding equipment IP, interface index data and corresponding interface identification;
and the equipment index information table is generated immediately according to the SNMP request.
On the basis of the above scheme, the method for acquiring data in the traffic link data table further includes:
the acquisition module is accessed to the network equipment through the probe, and the built-in script of the probe scans and acquires the equipment IP of the network equipment and the interface identifier of the equipment interface; the probe collector collects equipment flow data and interface flow data.
On the basis of the above scheme, the data obtaining method in the traffic link data table further includes:
the management module sends a connection request to the acquisition module, receives a data packet and analyzes the data packet to obtain an equipment IP of the network equipment and an interface identifier of an equipment interface;
the management module sends a process acquisition request to the acquisition module, receives a data packet and analyzes the data packet to obtain equipment flow data and interface flow data;
and obtaining a flow link data table according to the equipment IP of the network equipment, the interface identifier of the equipment interface, the equipment flow data and the interface flow data, and storing the flow link data table into a storage module.
On the basis of the above scheme, the data obtaining method in the traffic link data table further includes:
the management module sends a connection request to the acquisition module, receives and analyzes a data packet to obtain an equipment IP of the network equipment and an interface identifier of an equipment interface, generates an equipment link according to each network equipment IP, and generates an equipment virtual interface link according to the equipment link and the interface identifier of the equipment interface; generating an equipment link data table according to each equipment link and each equipment virtual interface link;
the management module sends a process acquisition request to the acquisition module, receives a data packet and analyzes the data packet to obtain equipment flow data and interface flow data; and storing the equipment flow data and the interface flow data into the equipment link data table to obtain a flow link data table, and storing the flow link data table into a storage module.
On the basis of the above scheme, the method for acquiring data in the traffic link data table further includes:
and the management module sends a process acquisition request to the probe management by adopting a timing script, receives a data packet at regular time and analyzes the data packet to obtain equipment flow data and interface flow data.
On the basis of the above scheme, the data obtaining method in the traffic link data table further includes:
before storing the device flow data and the interface flow data into the device link data table, the management module splits the device flow data and the interface flow data according to channel types, wherein the channel types comprise IP addresses, IP sessions, TCP sessions, UDP sessions, network segments and the like.
On the basis of the above scheme, the data acquisition method in the device index information table further includes:
the management module acquires equipment index data and interface index data according to the SNMP request, wherein the equipment index data and the interface index data comprise index data such as equipment utilization rate, memory utilization rate, accumulated received byte number and accumulated sent data packets; and generating a device index information table by the device index data, the corresponding device IP, the interface index data and the corresponding interface identification, and storing the device index information table in a storage module.
On the basis of the scheme, the acquisition module is NetFlow.
In a second aspect, the present application provides an SNMP-based network device performance analysis apparatus, including:
an acquisition module: the system is used for accessing network equipment, acquiring an equipment IP and an equipment interface, and acquiring equipment flow data and interface flow data;
a management module: the flow link data table is used for generating the data obtained by the obtaining module; the device index information table is used for generating device index information table by the device index data and the interface index data obtained by the SNMP request;
a storage module: the device comprises a flow link data table, a device index information table and a data storage module, wherein the flow link data table and the device index information table are used for storing the flow link data table and the device index information table;
an analysis module: and the flow performance analysis module is used for inquiring the specified flow data and the index data of the target equipment or the target interface and carrying out flow performance analysis according to the inquired data.
In a third aspect, the present application provides a network device performance analysis device based on SNMP, including: a processor and a memory coupled to the processor and the memory, the memory storing program instructions that, when executed by the processor, implement the above-described SNMP-based network device performance analysis method.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the invention combines the SNMP network equipment function and the flow monitoring function of the acquisition module, simultaneously performs state analysis and flow analysis on the equipment, performs state analysis on the equipment through the SNMP, performs flow analysis on the equipment and an interface thereof through a probe, acquires flow data of the equipment by using the probe with an automatic scanning script, an acquisition device and a management process, and enables the equipment to have the full-flow analysis capability after processing the collected data information, thereby achieving the purpose of quickly analyzing the performance of the equipment containing the flow data by taking the equipment as a view angle.
2. The invention uses the probe scanning script to identify the device interface, identifies the network device interface as a virtual interface link, and uses the flow analysis capability of the virtual interface link to realize the analysis of the specific interface performance of the network device containing flow data on the device side.
3. The invention utilizes the NetFlow network monitoring function to complete the flow monitoring work of the acquisition module.
4. The invention can directly start from the network equipment, not only can analyze the state performance of the equipment side or the interface side, but also has the index analysis capability related to the data packet, and even can self-define the performance analysis index, so the analysis is more accurate and flexible.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort. In the drawings:
fig. 1 is a schematic diagram of data relationships among modules in the embodiment.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and so forth) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be understood by those skilled in the art that all or part of the steps of the above facts and methods can be implemented by hardware related to instructions of a program, and the related program or the program can be stored in a computer readable storage medium, and when executed, the program includes the following steps: corresponding method steps are introduced here, and the storage medium may be a ROM/RAM, a magnetic disk, an optical disk, etc.
The embodiment is as follows:
as shown in fig. 1, in this embodiment, an SNMP-based network device performance analysis apparatus includes:
an acquisition module: the system is used for accessing network equipment, acquiring an equipment IP and an equipment interface, and acquiring equipment flow data and interface flow data;
the management module is used for: the flow link data table is used for generating the data obtained by the obtaining module; the device index information table is used for generating device index information table by the device index data and the interface index data obtained by the SNMP request;
a storage module: the device is used for storing a flow link data table and an equipment index information table;
an analysis module: and the flow performance analysis module is used for inquiring the specified flow data and the index data of the target equipment or the target interface and carrying out flow performance analysis according to the inquired data.
Based on the performance analysis device, the method for analyzing the flow performance of the network equipment comprises the following steps:
the acquisition module is accessed to the network equipment through the probe, and the built-in script of the probe scans and acquires the equipment IP of the network equipment and the interface identifier of the equipment interface;
the management module sends a connection request to the acquisition module;
the acquisition module sends the scanning information to the management module;
the management module receives and analyzes the data packet to obtain an equipment IP of the network equipment and an interface identifier of an equipment interface;
the management module sends a process acquisition request to the acquisition module;
after the acquisition module receives the acquisition request, the probe acquisition device acquires the equipment flow data and the interface flow data and sends the equipment flow data and the interface flow data to the management module;
the management module receives and analyzes the data packet to obtain equipment flow data and interface flow data;
preferably, the management module sends a process acquisition request to the probe management by using a timing script, receives a data packet at a fixed time, and analyzes the data packet to obtain equipment flow data and interface flow data.
The management module obtains a flow link data table according to the equipment IP of the network equipment, the interface identification of the equipment interface, the equipment flow data and the interface flow data and stores the flow link data table into the storage module;
preferably, the management module sends a connection request to the acquisition module, receives and analyzes the data packet to obtain an equipment IP of the network equipment and an interface identifier of the equipment interface, generates an equipment link according to each network equipment IP, and generates an equipment virtual interface link according to the equipment link and the interface identifier of the equipment interface; generating an equipment link data table according to each equipment link and each equipment virtual interface link;
the management module sends a process acquisition request to the acquisition module, receives a data packet and analyzes the data packet to obtain equipment flow data and interface flow data; and storing the equipment flow data and the interface flow data into the equipment link data table to obtain a flow link data table, and storing the flow link data table into a storage module.
Preferably, before storing the device traffic data and the interface traffic data in the device link data table, the management module splits the device traffic data and the interface traffic data according to channel types, where the channel types include IP addresses, IP sessions, TCP sessions, UDP sessions, network segments, and the like.
The analysis module reads the corresponding flow link data table and the equipment index information table in the storage module through the target equipment IP or the target interface identifier, inquires the specified flow data and index data, and analyzes the flow performance of the target network equipment or the equipment interface.
On the basis of the above scheme, the data acquisition method in the device index information table further includes:
the management module acquires equipment index data and interface index data according to the SNMP request, wherein the equipment index data and the interface index data comprise index data such as equipment utilization rate, memory utilization rate, cumulative number of received bytes and cumulative number of sent data packets; and generating a device index information table by the device index data, the corresponding device IP, the interface index data and the corresponding interface identification, and storing the device index information table in a storage module.
Example 2:
on the basis of embodiment 1, this embodiment adopts NetFlow as an acquisition module.
The management module sends a connection request to the NetFlow probe management process, the NetFlow probe management process sends the interface identification of the equipment IP and the equipment interface to the management module after successful connection, the management module generates a NetFlow link for the identified equipment after receiving data, generates a NetFlow virtual interface link for the identified interface through the NetFlow link and the interface identification, generates an equipment link data table and stores the equipment link data table in the storage module. The NetFlow probe collector collects the equipment flow data and marks the interface flow data of each equipment by using the interface identifier so as to analyze the flow data of each interface in the management module. The management module requests the probe management process to acquire a data packet by using the timing script. After the acquisition data packet is acquired, the management module decodes the data packet, analyzes the flow index and the interface identifier in the data packet, splits the data table according to the IP address, the IP session, the TCP session, the UDP session, the network segment and other types, stores the index and the link to obtain a flow link data table, and merges the flow link data table into the storage module.
The Management module SNMP sends a Get request message containing OID (Object Identifier) to an Agent (Agent process) of the equipment through an NMS (Network Management System), the Agent queries the corresponding OID in an MIB (Management information base) according to the request, obtains the value of the OID and encapsulates the OID into PDU (protocol data unit) in a Response message, and sends a Response to the NMS.
If the equipment flow performance analysis is needed, entering the specified equipment from the equipment list for analysis, reading an equipment index information table generated by the management module through the equipment IP, acquiring recorded equipment index data in the table, such as equipment utilization rate, memory utilization rate and the like, and displaying in a chart form; and inquiring the equipment link table generated by the management module through the equipment IP to obtain a corresponding NetFlow link, inquiring the flow link data table generated by the management module through the NetFlow link to obtain index data, and performing flow analysis on the equipment. And (3) drawing the bit rate index of a specific interval time in a specific time period by using a line graph, calculating the bit rate mean value in the time period as a reference mark, and analyzing the flow stability of the equipment according to the trend of the line graph. And the network performance judgment is carried out by supporting indexes such as response delay, retransmission delay, packet loss rate, connection failure rate and the like, the judgment reference is that the delay exceeds 100ms, the connection failure rate and the packet loss rate exceed 2%, and the judgment of the network performance is poor. Meanwhile, the table is used for inquiring all flow indexes of the equipment from the IP address, IP session, TCP session, UDP session, network segment and other layers, so that a user can conveniently check detailed index data information of a specific analysis object (IP address, IP session and the like) during flow analysis, for example, the IP session comprises an IP endpoint, the number of bytes sent by the endpoint, the number of bytes received by the endpoint and the like. The general indexes comprise bit rate, total byte number, data packets per second, byte number sent, byte number received, data packet number sent, data packet number received, traffic ratio and the like, and other user-defined query indexes. The table supports the top function, and looks at the object [ IP address, network segment ] of the top 200 traffic maximum [ bit rate ].
Preferably, if interface flow performance analysis is needed, entering a specified device interface from a device interface list for flow analysis, reading a device index information table generated by the management module through a device IP and the device interface, acquiring data, such as interface state, width utilization rate and the like, and displaying in a chart form; and inquiring the equipment link table generated by the management module through the equipment IP and the equipment interface identifier, inquiring the corresponding virtual interface link, inquiring the flow link data table generated by the management module through the virtual interface link, and acquiring and analyzing related data.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes that are changed from the content of the present specification and the drawings, or are directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (10)
1. A network equipment performance analysis method based on SNMP is characterized by comprising the following steps:
reading a corresponding flow link data table and an equipment index information table in a storage module through a target equipment IP or a target interface identifier, inquiring specified flow data and index data, and carrying out flow performance analysis on target network equipment or an equipment interface;
the flow link data table comprises equipment flow data, corresponding equipment IP, interface flow data and corresponding interface identification;
the flow link data table is updated according to an acquisition module of the access network equipment;
the equipment index information table comprises equipment index data, corresponding equipment IP, interface index data and corresponding interface identification;
and the equipment index information table is generated immediately according to the SNMP request.
2. The SNMP-based network device performance analysis method according to claim 1, wherein the data obtaining method in the traffic link data table comprises:
the acquisition module is accessed to the network equipment through the probe, and the built-in script of the probe scans and acquires the equipment IP of the network equipment and the interface identifier of the equipment interface; the probe collector collects equipment flow data and interface flow data.
3. The method of claim 2, wherein the method for obtaining data in the traffic link data table further comprises:
the management module sends a connection request to the acquisition module, receives a data packet and analyzes the data packet to obtain an equipment IP of the network equipment and an interface identifier of an equipment interface;
the management module sends a process acquisition request to the acquisition module, receives a data packet and analyzes the data packet to obtain equipment flow data and interface flow data;
and obtaining a flow link data table according to the equipment IP of the network equipment, the interface identification of the equipment interface, the equipment flow data and the interface flow data, and storing the flow link data table in a storage module.
4. The SNMP-based network device performance analysis method according to claim 3, wherein the data obtaining method in the traffic link data table further comprises:
the management module sends a connection request to the acquisition module, receives and analyzes the data packet to obtain the equipment IP of the network equipment and the interface identifier of the equipment interface, generates an equipment link according to each network equipment IP, and generates an equipment virtual interface link according to the equipment link and the interface identifier of the equipment interface; generating an equipment link data table according to each equipment link and each equipment virtual interface link;
the management module sends a process acquisition request to the acquisition module, receives a data packet and analyzes the data packet to obtain equipment flow data and interface flow data; and storing the equipment flow data and the interface flow data into the equipment link data table to obtain a flow link data table, and storing the flow link data table into a storage module.
5. An SNMP-based network device performance analysis method according to claim 3 or 4, wherein the data obtaining method in the traffic link data table further comprises:
the management module sends a process acquisition request to the acquisition module by adopting a timing script, receives a data packet at a fixed time and analyzes the data packet to obtain equipment flow data and interface flow data.
6. An SNMP-based network device performance analysis method according to claim 3 or 4, wherein the data obtaining method in the traffic link data table further comprises:
before the management module stores the equipment flow data and the interface flow data into the flow link data table, the management module splits the equipment flow data and the interface flow data according to the channel types.
7. The SNMP-based network device performance analysis method according to claim 1, wherein the data obtaining method in the device indicator information table further comprises:
the management module acquires the equipment index data and the interface index data according to the SNMP request, generates an equipment index information table by the equipment index data, the corresponding equipment IP, the interface index data and the corresponding interface identification, and stores the equipment index information table in the storage module.
8. The SNMP-based network device performance analysis method according to claim 1, wherein the obtaining module is NetFlow.
9. An SNMP-based network device performance analysis apparatus applied to any one of claims 1 to 8, the apparatus comprising:
an acquisition module: the system is used for accessing network equipment, acquiring an equipment IP and an equipment interface, and acquiring equipment flow data and interface flow data;
a management module: the data acquisition module is used for acquiring data of the traffic link; the device index information table is used for generating device index information table by the device index data and the interface index data obtained by the SNMP request;
a storage module: the device comprises a flow link data table, a device index information table and a data storage module, wherein the flow link data table and the device index information table are used for storing the flow link data table and the device index information table;
an analysis module: the method is used for inquiring the specified flow data and the index data of the target equipment or the target interface and carrying out flow performance analysis according to the inquired data.
10. An SNMP-based network device performance analysis device, comprising: a processor and a memory coupled to the processor and the memory, the memory storing program instructions that, when executed by the processor, implement a SNMP-based network device performance analysis method as claimed in any one of claims 1-8.
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