CN115174414A - Method, system and electronic device for automatically identifying devices and device paths in session - Google Patents
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Abstract
The invention relates to the technical field of network flow analysis, and discloses a method, a system and an electronic device for automatically identifying devices and device paths in a session, wherein the method comprises the following steps: s1, configuring router information of network equipment, and constructing a mapping table of an ID (identity) and an IPv6 address of the network equipment; s2, acquiring a data packet in the two directions of the network session, and decoding to obtain routing list information of link nodes in the data packet; s3, searching in a mapping table of the ID and the IPv6 address of the network equipment through the routing list information, and matching to the corresponding network equipment; and S4, displaying the matched network equipment according to the sequence of the routing list in the routing list information. The invention can automatically identify the equipment and the equipment path in the network session, can reduce the time consumed by a user in network analysis and equipment configuration, and ensures the accuracy of the analysis and configuration scenes related to the equipment.
Description
Technical Field
The invention relates to the technical field of network traffic analysis, in particular to a method, a system and electronic equipment for automatically identifying equipment and equipment paths in a session.
Background
At present, session analysis of many analysis software mainly takes links as a view angle, mainly shows statistical indexes of the links and performs index comparison between the links, and a user often needs to manually configure a session path when wanting to perform session analysis with equipment as a view angle, that is, many analysis software only needs to manually configure the equipment path by the user when performing network topology configuration and service configuration. That is to say, in the actual use process of a user, when the user wants to view a device through which a session passes with the device as a view angle, the result of the manual configuration of the user is often viewed, but the result of the manually configured network path may not be accurate enough, and if the configuration error causes an unavoidable loss, at the same time, the configuration of the device path in the network session also consumes too much time of the user, and the user is likely to make a configuration error without knowing the relationship between the network topology and the device, which causes an unavoidable loss due to a subsequent series of analysis and monitoring data errors.
Disclosure of Invention
The invention provides a method, a system and an electronic device for automatically identifying devices and device paths in a session, which can automatically identify the devices in a network session, automatically sort the sequence of the paths of session flow through routing devices and automatically generate the relationship between a service logic diagram and the devices in a network topology diagram.
The invention is realized by the following technical scheme:
a method for automatically identifying devices and device paths in a session comprises the following steps:
s1, configuring router information of network equipment, and constructing a mapping table of an ID (identity) and an IPv6 address of the network equipment;
s2, acquiring a data packet in the two directions of the network session, and decoding to obtain routing list information of link nodes in the data packet;
s3, searching in a mapping table of the ID and the IPv6 address of the network equipment through the routing list information, and matching to the corresponding network equipment;
and S4, displaying the matched network equipment according to the sequence of the routing list in the routing list information.
As optimization, the routing list information includes IPv6 address information and IPv6 path order.
As optimization, in S2, the specific steps of decoding to obtain the IPv6 path sequence of the link node in the data packet are as follows:
s2.1, decoding the data packet, and obtaining a source node address and a routing head of the link node from the decoding information;
s2.2, extracting Segment List [ ] information of the link node from the routing header;
s2.3, acquiring a tail node with the Segment List of 0, and pressing the tail node with the Segment List of 0 into a specific network Segment route (SR specific);
s2.4, taking the tail node as a starting point and the source node as an end point, and acquiring Segment List [ ] information of link nodes passing through the network session in a reverse order;
s2.5, obtaining the sequence of the link nodes by combining the address of the source node with the Segment List [ ] information, and mapping the IPv6 path sequence of the network equipment according to the mapping table.
As an optimization, in S3, searching through the mapping table from the routing list information to the ID and IPv6 address of the network device, and the specific step of matching to the corresponding network device is:
s3.1, judging whether network equipment exists in a mapping table of the ID and the IPv6 address of the network equipment or not according to the IPv6 address information of the link node obtained by decoding the data packet; if the corresponding network equipment exists, jumping to S3.2, otherwise, jumping to S3.3;
s3.2, outputting the IPv6 address of the network device, then skipping to S3.5, otherwise, returning to S3.1, and continuing to judge the network device corresponding to the IPv6 address information of the next link node in the network session;
s3.3, judging whether the IPv6 address of the link node needs to be matched and mapped with the ID address of the new network equipment and added into a mapping table, if so, skipping to S3.4, otherwise, skipping to S3.5;
s3.4, matching and mapping the IPv6 address of the link node and the ID address of the new network equipment, adding the address into a mapping table, and then outputting the IP of the newly-built network equipment;
s3.5, judging whether the link node is the last link node in the network session, if so, skipping to S3.6, otherwise, returning to S3.1;
and S3.6, ending.
As optimization, the specific steps of S4 are: and displaying the matched network equipment according to the IPv6 path sequence of the network equipment.
As optimization, in S1, the IPv6 address ranges of any of the network devices cannot be crossed.
As an optimization, the IPv6 address may be a single IPv6 address or a plurality of IPv6 addresses.
As an optimization, the network session is a TCP session or a UDP session.
The invention also discloses a system for automatically identifying the equipment and the equipment path in the session, which comprises the following steps:
the configuration module is used for configuring router information of network equipment and constructing a mapping table of an ID and an IPv6 address of the network equipment;
the acquisition decoding module is used for acquiring a data packet in the two directions of the network session and decoding the data packet to acquire routing list information of link nodes in the data packet;
the retrieval module is used for retrieving from the mapping table of the ID and the IPv6 address of the network equipment through the routing list information and matching the routing list information with the corresponding network equipment;
and the display module is used for displaying the matched network equipment according to the sequence of the routing list in the routing list information.
The invention also discloses electronic equipment, which comprises at least one processor and a memory which is in communication connection with the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform a method of automatically identifying devices, device paths in a session as described above.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the invention can automatically identify the equipment and the equipment path in the network session, automatically configure the equipment connection relation in the network topological graph, reduce the time consumed by a user in network analysis and equipment configuration, ensure the accuracy of the relevant analysis and configuration scenes of the equipment and avoid the wrong judgment of network performance, network faults and the like by the user under the condition that the actual network equipment relation is unknown.
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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 flowchart of a method for automatically identifying devices and device paths in a session according to the present invention;
fig. 2 is a process diagram of the SRv6 performing automatic identification of the device and automatic combing of the device path through the method for automatically identifying the device and the device path in the session according to the present invention in the embodiment.
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.
Example 1
As shown in fig. 1, a method for automatically identifying a device and a device path in a session includes:
s1, configuring router information of network equipment, namely configuring router information which may pass through a network in network equipment management, and constructing a mapping table of an ID and an IPv6 address of the network equipment. In this embodiment, the IPv6 address ranges of any of the network devices cannot be crossed, otherwise, the unique ID of the network device cannot be determined according to the ID. For example, two IPv6 addresses: 2001, DB8: (346). The IPv6 address supports a single IPv6 address, a plurality of IPv6 addresses, a plurality of IPv6 address ranges and a plurality of network segment styles, wherein the network segment is a collection of a plurality of IP addresses or IP address ranges.
S2, acquiring a data packet in the network session bidirectional direction through a data acquisition point (link), retrieving a specific TCP/UDP session in a retrieval page, and decoding to obtain the routing list information of a link node in the data packet. Specifically, the routing list information includes IPv6 address information and IPv6 path order.
In this embodiment, in S2, the specific steps of decoding to obtain the IPv6 path sequence of the link node in the data packet are:
s2.1, decoding the data packet, and obtaining a source node address and a routing head of the link node from the decoding information;
s2.2, extracting Segment List [ ] information of the link node from the routing header;
s2.3, acquiring a tail node with the Segment List of 0, and pressing the tail node with the Segment List of 0 into SR specific;
s2.4, taking the tail node as a starting point and the source node as an end point, and acquiring Segment List [ ] information of link nodes passing through the network session in a reverse order;
s2.5, obtaining the sequence of the link nodes by combining the source node address with the Segment List [ ] information, and mapping the IPv6 path sequence of the network equipment according to the mapping table.
S3, searching in a mapping table from the routing list information to the ID and IPv6 address of the network equipment, and matching to the corresponding network equipment;
in this embodiment, in S3, retrieving from the mapping table between the ID of the network device and the IPv6 address through the routing list information, and matching to the corresponding network device includes the specific steps of:
s3.1, judging whether network equipment exists in a mapping table of the ID and the IPv6 address of the network equipment or not according to the IPv6 address information of the link node obtained by decoding the data packet; if the corresponding network equipment exists, jumping to S3.2, otherwise, jumping to S3.3;
s3.2, outputting the IPv6 address of the network device, then skipping to S3.5, otherwise, returning to S3.1, and continuing to judge the network device corresponding to the IPv6 address information of the next link node in the network session;
s3.3, judging whether the IPv6 address of the link node needs to be matched and mapped with the ID address of the new network equipment and added into a mapping table, if so, jumping to S3.4, otherwise, jumping to S3.5;
s3.4, matching and mapping the IPv6 address of the link node and the ID address of the new network equipment, adding the address into a mapping table, and then outputting the IP of the newly-built network equipment;
s3.5, judging whether the link node is the last link node in the network session, if so, skipping to S3.6, otherwise, returning to S3.1;
and S3.6, ending.
And S4, displaying the matched network equipment according to the sequence of the routing list in the routing list information.
In this embodiment, the specific steps of S4 are: and displaying the matched network equipment according to the IPv6 path sequence of the network equipment.
The IPv6 information and the IPv6 path sequence in the decoding protocol data are obtained, the IPv6 information obtained in decoding is mapped with an IPv6 data set configured by the network equipment, the IPv6 address can be mapped to the equipment configured correspondingly, and meanwhile, the equipment path can be mapped out based on the IPv6 path sequence obtained before, and finally, the equipment path is displayed.
The IP bearer protocol (SRv 6) such as SR (Segment Routing) + IPv6 can perform automatic identification of devices and automatic combing of device paths in the above manner. The concrete implementation is as follows:
1. the data packet is decoded, and the Source Address and Routing Header for IPv6 (Segment Routing) are obtained from the decoding information.
2. Segment List [ ] information is extracted from Routing Header for IPv6 (Segment Routing).
3. Because the Segment List is pressed into a multi-layer label when the head End presses the path label, for SRv6, a plurality of link nodes that need to pass through in the data packet transmission process are pressed into the SR specific, where Last Segment, or called Tail-End or End-point, the number of Segment List is 0 (i.e. Segment List [0] in fig. 2), and then the nodes that need to pass through are pressed into the SR specific in reverse order, for example, the Last one is Segment List [ N-1], if N nodes pass through. The working principle is that the value of SL is decreased every time a node contained in Segment List passes through, and meanwhile, the node SID (actually an IPv6 address, but different functions are possible) of Segment List [ SL ] is copied to the field of the destination IPv6 address of the basic packet header, so that the router is told to which node the next hop needs to go, and the data packet is sent to the destination by one hop.
4. According to the above, assuming that the path of the session passing through the routing device is a-B-C-D, a is the head end node, D is the end node, and the nodes through which the push must pass are B, C, D, so the push (backward push) is performed in the SR Header:
i.Segment List[0]＝D；
ii.Segment List[1]＝C；
iii.Segment List[2]＝B.
5. according to the above description, the Address sequence of the routing device can be obtained through Source Address + Segment List according to the decoding information, and the specific information of the device can be obtained through matching the IPv6 Address in the device configuration with the IPv6 (Source Address + Segment List) Address in the obtained information.
Example 2
The invention also discloses a system for automatically identifying the equipment and the equipment path in the session, which comprises the following steps:
the configuration module is used for configuring router information of network equipment and constructing a mapping table of an ID and an IPv6 address of the network equipment;
the acquisition decoding module is used for acquiring a data packet in the two directions of the network session and decoding the data packet to acquire routing list information of link nodes in the data packet;
the retrieval module is used for retrieving from the mapping table of the ID and the IPv6 address of the network equipment through the routing list information and matching the routing list information with the corresponding network equipment;
and the display module is used for displaying the matched network equipment according to the sequence of the routing list in the routing list information.
Example 3
The invention also discloses electronic equipment, which comprises at least one processor and a memory which is in communication connection with the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform a method of automatically identifying devices, device paths in a session as described above.
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 any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A method for automatically identifying devices and device paths in a session is characterized by comprising the following steps:
s1, configuring router information of network equipment, and constructing a mapping table of an ID (identity) and an IPv6 address of the network equipment;
s2, acquiring a data packet in the two directions of the network session, and decoding to obtain routing list information of link nodes in the data packet;
s3, searching in a mapping table from the routing list information to the ID and IPv6 address of the network equipment, and matching to the corresponding network equipment;
and S4, displaying the matched network equipment according to the sequence of the routing list in the routing list information.
2. The method of claim 1, wherein the routing list information comprises IPv6 address information and IPv6 path order.
3. The method according to claim 2, wherein in S2, the specific step of decoding to obtain the IPv6 path sequence of the link node in the packet is:
s2.1, decoding the data packet, and obtaining a source node address and a routing head of the link node from the decoding information;
s2.2, extracting Segment List [ ] information of the link node from the routing header;
s2.3, acquiring the tail node with the Segment List of 0, and pressing the tail node with the Segment List of 0 into a specific network Segment route;
s2.4, taking the tail node as a starting point and the source node as an end point, and acquiring Segment List [ ] information of the link nodes passing through the network session in a reverse order;
s2.5, obtaining the sequence of the link nodes by combining the address of the source node with the Segment List [ ] information, and mapping the IPv6 path sequence of the network equipment according to the mapping table.
4. The method according to claim 2 or 3, wherein in S3, the specific steps of searching through the mapping table from the routing list information to the ID and IPv6 address of the network device and matching to the corresponding network device are:
s3.1, judging whether network equipment exists in a mapping table of the ID and the IPv6 address of the network equipment or not according to the IPv6 address information of the link node obtained by decoding the data packet; if corresponding network equipment exists, jumping to S3.2, otherwise, jumping to S3.3;
s3.2, outputting the IPv6 address of the network equipment, then jumping to S3.5, otherwise, returning to S3.1, and continuing to judge the network equipment corresponding to the IPv6 address information of the next link node in the network session;
s3.3, judging whether the IPv6 address of the link node needs to be matched and mapped with the ID address of the new network equipment and added into a mapping table, if so, jumping to S3.4, otherwise, jumping to S3.5;
s3.4, matching and mapping the IPv6 address of the link node and the ID address of the new network equipment, adding the address into a mapping table, and then outputting the IP of the newly-built network equipment;
s3.5, judging whether the link node is the last link node in the network session, if so, skipping to S3.6, otherwise, returning to S3.1;
and S3.6, ending.
5. The method for automatically identifying the devices and the device paths in the session according to claim 4, wherein the specific steps of S4 are as follows: and displaying the matched network equipment according to the IPv6 path sequence of the network equipment.
6. The method according to claim 1, wherein in S1, there is no intersection between IPv6 address ranges of any of the network devices.
7. The method of claim 1, wherein the IPv6 address may be a single IPv6 address or multiple IPv6 addresses.
8. The method of claim 1, wherein the network session is a TCP session or a UDP session.
9. A system for automatically identifying devices and device paths in a session, comprising:
the configuration module is used for configuring router information of network equipment and constructing a mapping table of an ID and an IPv6 address of the network equipment;
the acquisition decoding module is used for acquiring a data packet in the two directions of the network session and decoding the data packet to acquire routing list information of link nodes in the data packet;
the retrieval module is used for retrieving from the mapping table of the ID and the IPv6 address of the network equipment through the routing list information and matching the routing list information with the corresponding network equipment;
and the display module is used for displaying the matched network equipment according to the sequence of the routing list in the routing list information.
10. An electronic device comprising at least one processor, and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform a method of automatically identifying devices, device paths in a session as claimed in any one of claims 1 to 8.
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