CN114374637B

CN114374637B - Routing processing method and device

Info

Publication number: CN114374637B
Application number: CN202111587593.2A
Authority: CN
Inventors: 陈建
Original assignee: New H3C Technologies Co Ltd Hefei Branch
Current assignee: New H3C Technologies Co Ltd Hefei Branch
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2023-12-26
Anticipated expiration: 2041-12-23
Also published as: CN114374637A

Abstract

The application provides a routing processing method and device. The method is applied to any VTEP equipment in the EVPN networking and comprises the following steps: receiving an MAC/IP notification route issued by the VTEP equipment at the opposite end; if the route carries the MAC migration extension group attribute information, the address mark bit included in the information is the address mark bit used for representing the static address, and the first forwarding table item including the static MAC/IP address carried in the route exists in the forwarding table item in the active state recorded locally, the forwarding table item in the active state is determined from the first forwarding table item and the second forwarding table item generated by the VTEP equipment based on the route according to the first priority information corresponding to the MAC/IP address in the first forwarding table item and the second priority information corresponding to the static MAC/IP address included in the information, and the forwarding table item in the active state is set as the active state. The method and the device can improve network experience.

Description

Routing processing method and device

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a routing processing method and device.

Background

In ethernet virtual private network (Ethernet Virtual Private Network, EVPN) networking, for any scalable virtual local area network tunnel endpoint (VxLAN Tunnel End Point, VTEP) device, upon receiving a MAC/IP advertisement route carrying MAC migration extension group attribute information sent by an opposite VTEP device (i.e., mutually border gateway protocol (Border Gateway Protocol, BGP) EVPN neighbor to the VTEP device), upon discovering that there is the same static MAC/IP address based on the address tag bit included in the MAC migration extension group attribute information, the VTEP device randomly activates a forwarding table entry from the forwarding table entry corresponding to the same static MAC/IP address, for example.

However, in this routing processing manner, in a plurality of situations where a user device (for example, a virtual machine, a host, etc.) is erroneously connected to a plurality of VTEP devices, etc., it is easy for a forwarding path corresponding to an activated forwarding table entry to be an erroneous forwarding path, thereby affecting network experience.

Disclosure of Invention

In order to overcome the problems in the related art, the application provides a routing processing method and a routing processing device.

According to a first aspect of an embodiment of the present application, there is provided a routing processing method, which is applied to any VTEP device in an EVPN network, the method including:

receiving an MAC/IP advertising route issued by opposite-end VTEP equipment, wherein the VTEP equipment and the opposite-end VTEP equipment are BGP EVPN neighbors;

if the MAC/IP notification route carries MAC migration extension group attribute information, address mark bits included in the MAC migration extension group attribute information are address mark bits used for representing static addresses, and a first forwarding table item including the static MAC/IP address carried in the MAC/IP notification route exists in the locally recorded forwarding table item in an activated state, determining the forwarding table item required to be in the activated state from the first forwarding table item and the second forwarding table item generated by the VTEP equipment based on the MAC/IP notification route according to first priority information corresponding to the MAC/IP address in the locally recorded first forwarding table item and second priority information corresponding to the static MAC/IP address included in the MAC migration extension group attribute information;

If the determined forwarding table entry is the first forwarding table entry, continuing to keep the first forwarding table entry in an activated state, and setting the second forwarding table entry in an inactivated state;

and if the determined forwarding table entry is the second forwarding table entry, setting the first forwarding table entry to be in an inactive state, and setting the second forwarding table entry to be in an active state.

According to a second aspect of embodiments of the present application, there is provided a routing processing apparatus, the apparatus being applied to any VTEP device in an EVPN network, the apparatus including:

the receiving module is used for receiving the MAC/IP advertising route issued by the VTEP equipment at the opposite end, wherein the VTEP equipment and the VTEP equipment at the opposite end are BGP EVPN neighbors;

a first determining module, configured to, if the MAC/IP advertisement route carries MAC migration extension group attribute information, an address tag bit included in the MAC migration extension group attribute information is an address tag bit used to characterize a static address, and a first forwarding table item including a static MAC/IP address carried in the MAC/IP advertisement route exists in a forwarding table item in an active state of a local record, re-determine, according to first priority information corresponding to a MAC/IP address in the first forwarding table item in the local record and second priority information corresponding to the static MAC/IP address included in the MAC migration extension group attribute information, a forwarding table item that needs to be in an active state from among the first forwarding table item and a second forwarding table item generated by the VTEP device based on the MAC/IP advertisement route;

The first setting module is configured to keep the first forwarding table entry in an active state if the forwarding table entry determined by the first determining module is the first forwarding table entry, and set the second forwarding table entry in an inactive state;

and the second setting module is used for setting the first forwarding table item to be in an inactive state and setting the second forwarding table item to be in an active state if the forwarding table item determined by the first determining module is the second forwarding table item.

The technical scheme provided by the embodiment of the application can comprise the following beneficial effects:

in this embodiment of the present application, when any VTEP device in the EVPN network receives a MAC/IP advertisement route sent by an opposite VTEP device (that is, the VTEP device is a BGP EVPN neighbor with each other), once it is found that the MAC/IP advertisement route carries MAC migration extension group attribute information, and an address tag bit included in the MAC migration extension group attribute information is an address tag bit used to characterize a static address, and a first forwarding table entry including a static MAC/IP address carried in the MAC/IP advertisement route exists in a locally recorded forwarding table entry in an active state, determining, from the first forwarding table entry and the second forwarding table entry generated by the VTEP device based on the MAC/IP advertisement route, a forwarding table entry that needs to be in an active state according to first priority information corresponding to the MAC/IP address in the locally recorded first forwarding table entry and second priority information corresponding to the static MAC/IP address included in the MAC migration extension group attribute information; if the determined forwarding table entry is the first forwarding table entry, continuing to keep the first forwarding table entry in an activated state, and setting the second forwarding table entry in an inactivated state; and if the determined forwarding table entry is the second forwarding table entry, setting the first forwarding table entry to be in an inactive state and setting the second forwarding table entry to be in an active state.

In this way, the VTEP device can accurately activate the corresponding forwarding table entry based on the priority corresponding to the relevant same static MAC/IP address, so as to accurately activate the corresponding forwarding path, thereby improving the network experience.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

Fig. 1 is a schematic flow chart of a routing processing method provided in an embodiment of the present application;

fig. 2 is a schematic architecture diagram of an EVPN network to which the routing processing method is applicable according to the embodiment of the present application;

fig. 3 is a schematic structural diagram of a routing processing device according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.

The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, a first message may also be referred to as a second message, and similarly, a second message may also be referred to as a first message, without departing from the scope of the present application. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.

Next, embodiments of the present application will be described in detail.

The embodiment of the application provides a routing processing method, which is applied to any VTEP device in an EVPN (virtual transport protocol) networking, as shown in fig. 1, and the method can comprise the following steps:

S11, receiving the MAC/IP advertising route issued by the VTEP equipment at the opposite end.

In this step, the VTEP device and the peer VTEP device are BGP EVPN neighbors of each other.

S12, if the MAC/IP notification route carries MAC migration extension community attribute information, address mark bits included in the MAC migration extension community attribute information are address mark bits used for representing static addresses, and a first forwarding table item including the static MAC/IP address carried in the MAC/IP notification route exists in the forwarding table item in an active state of the local record, determining the forwarding table item in the active state from the first forwarding table item and the second forwarding table item generated by the VTEP equipment based on the MAC/IP notification route according to first priority information corresponding to the MAC/IP address in the first forwarding table item of the local record and second priority information corresponding to the static MAC/IP address included in the MAC migration extension community attribute information.

And S13, if the determined forwarding table entry is the first forwarding table entry, continuously keeping the first forwarding table entry in an activated state, and setting the second forwarding table entry in an inactivated state.

S14, if the determined forwarding table entry is the second forwarding table entry, setting the first forwarding table entry to be in an inactive state, and setting the second forwarding table entry to be in an active state.

Specifically, in the above step S12, the address tag bit included in the above MAC migration extension community attribute information is embodied in a tag (Flags) field, and the second priority information included in the above MAC migration extension community attribute information is embodied in a sequence number field.

In addition, in the above-described step S12, in one example, only one priority may be included in each of the first priority information and the second priority information, and the priority included in the first priority information is different from the priority included in the second priority information.

In this case, the VTEP device may determine the forwarding entries that need to be in an active state by, in particular:

comparing the priority included in the first priority information with the priority included in the second priority information;

if the priority included in the first priority information is greater than the priority included in the second priority information, determining that the first forwarding table entry is the forwarding table entry which needs to be in an activated state;

if the priority included in the first priority information is smaller than the priority included in the second priority information, determining that the second forwarding table entry is the forwarding table entry which needs to be in the active state.

In another example, the first priority information and the second priority information may each include a first priority (may be referred to as a high priority) and a second priority (may be referred to as a low priority), and the second priority included in the first priority information is different from the second priority included in the second priority information.

comparing the first priority included in the first priority information with the first priority included in the second priority information;

if the first priority included in the first priority information is compared to be greater than the first priority included in the second priority information, determining that the first forwarding table entry is the forwarding table entry which needs to be in an activated state;

if the first priority included in the first priority information is smaller than the first priority included in the second priority information, determining that the second forwarding table entry is the forwarding table entry which needs to be in an activated state;

if the first priority included in the first priority information is equal to the first priority included in the second priority information, continuing to compare the second priority included in the first priority information with the second priority included in the second priority information;

If the second priority included in the first priority information is greater than the second priority included in the second priority information, determining that the first forwarding table entry is the forwarding table entry which needs to be in an activated state;

and if the second priority included in the first priority information is smaller than the second priority included in the second priority information, determining that the second forwarding table entry is the forwarding table entry which needs to be in the active state.

It should be noted that, in the above step S12, the static MAC/IP address carried in the MAC/IP advertisement route may be a static MAC/IP address of the designated interface on the VTEP device, or may be a static MAC/IP address of the user device accessing the VTEP device, in which case, the MAC/IP address included in the above first forwarding table entry (i.e., the static MAC/IP address carried in the MAC/IP advertisement route) may be a MAC/IP address of the local user device learned by the VTEP device, or may be a MAC/IP address of the user device on the VTEP device learned by the VTEP device. Here, the user device may be a virtual machine, a host, or the like.

It should be further noted that, the other processes performed by the VTEP device after the step S13 or the step S14 are performed are conventional, and will not be described in detail herein.

It should be further noted that, in the embodiment of the present application, in order to accurately guide the migration of the user equipment having the dynamic MAC/IP address, the VTEP may further perform the following operations after receiving the above MAC/IP advertisement route:

if the MAC/IP advertisement route carries MAC migration extension group attribute information, address mark bits included in the MAC migration extension group attribute information are address mark bits used for representing dynamic addresses, and a third forwarding table item including dynamic MAC/IP addresses carried in the MAC/IP advertisement route exists in forwarding table items in an active state of the local record, determining the forwarding table item required to be in the active state from the third forwarding table item and fourth forwarding table items generated by VTEP equipment based on the MAC/IP advertisement route according to third priority information corresponding to the MAC/IP addresses in the third forwarding table item of the local record and fourth priority information corresponding to the dynamic MAC/IP addresses included in the MAC migration extension group attribute information, wherein the dynamic MAC/IP addresses are the MAC/IP addresses of the user equipment;

if the determined forwarding table entry is a third forwarding table entry, continuing to keep the third forwarding table entry in an activated state, and setting a fourth forwarding table entry in an inactivated state;

And if the determined forwarding table entry is a fourth forwarding table entry, setting the third forwarding table entry to be in an inactive state and setting the fourth forwarding table entry to be in an active state.

Specifically, in this operation flow, the third priority information and the fourth priority information each include a third priority (may be referred to as a high priority) and a fourth priority (may be referred to as a low priority), and the value of the third priority in the third priority information and the value of the third priority in the fourth priority information are both the value of the priority of the interface on the VTEP device to which the user device corresponding to the dynamic MAC/IP address is connected and which communicates with the user device, and the value of the fourth priority in the third priority information and the value of the fourth priority in the fourth priority information are both the migration times of the user device corresponding to the dynamic MAC/IP address.

In this case, the VTEP device may determine the forwarding entries that need to be in an active state by:

comparing the third priority included in the third priority information with the fourth priority included in the fourth priority information;

if the third priority included in the third priority information is compared to be greater than the third priority included in the fourth priority information, determining that the third forwarding table entry is the forwarding table entry which needs to be in an activated state;

If the third priority included in the third priority information is smaller than the third priority included in the fourth priority information, determining that the fourth forwarding table entry is the forwarding table entry which needs to be in an activated state;

if the third priority included in the third priority information is equal to the third priority included in the fourth priority information, continuing to compare the fourth priority included in the third priority information with the fourth priority included in the fourth priority information;

and determining the forwarding table entry corresponding to the maximum fourth priority as the forwarding table entry which needs to be in an activated state.

The routing method is described in detail below with reference to specific embodiments.

Example 1

As shown in fig. 2, user Plane (UP) devices (puc 1, puc 2, and puc 3 shown in fig. 2) as VTEP devices while serving as a shared gateway for optical line terminal (Optical Line Terminal, OLT) devices that are dual-homed to leaf nodes (a_leaf 1 and a_leaf2 shown in fig. 2) as VTEP devices; assuming that interfaces on one of pUP 1, pUP2 and pUP3 for receiving three-Layer virtual private network (Layer 3 Virtual Private Network, L3 VPN) traffic are all configured with the same static MAC address, e.g., 1-1-1, and all access under the same virtual switching instance (Virtual Switch Instance, VSI) (e.g., VSI VPNa); assuming that the administrator configures the respective priorities for 1-1-1 on the pUP 1, pUP2 and pUP3 sides based on the range of 0 to 65535, the larger the numerical value is, the higher the indicated priority is, the corresponding priority is 1000 for 1-1-1 on the pUP 1 side, the corresponding priority is 2000 for 1-1-1 on the pUP2 side, and the corresponding priority is 3000 for 1-1-1 on the pUP3 side.

In FIG. 2, A_leaf1 and A_leaf2 each establish BGP EVPN neighbor relationships with all pUPs that issue to A_leaf1 and A_leaf2 MAC/IP routes carrying 1-1-1 and MAC migration extension community attribute information, each of which includes address tag bits and priorities corresponding to 1-1-1. Here, the address tag bits included in the MAC migration extension community attribute information carried in each MAC/IP route may be all 1, so as to be used to characterize a 1-1-1 as a static MAC address.

Taking pUP 1, pUP2 and pUP3 as examples, issuing the MAC/IP route carrying 1-1-1 to A_leaf1, and assuming that A_leaf1 receives the MAC/IP route issued by pUP2 first, the MAC address carried in the MAC/IP route is 1-1-1, the address mark bit included in the carried MAC migration extension group attribute information is 1, and the priority included in the carried MAC migration extension group attribute information is 2000; the A_leaf1 discovers that the address mark bit included in the MAC migration extension community attribute information carried in the MAC/IP route is 1, and no forwarding table item including static 1-1-1 is recorded locally, at this time, the A_leaf1 generates a forwarding table item including static 1-1-1 based on the MAC/IP route, sets the forwarding table item as an activated state, and records the priority (namely, 2000) corresponding to the static 1-1-1 in the forwarding table item.

Then, the A_leaf1 receives the MAC/IP route issued by pUP3, wherein the MAC address carried in the MAC/IP route is 1-1-1, the address mark bit included in the carried MAC migration extension group attribute information is 1, and the priority included in the carried MAC migration extension group attribute information is 3000; the A_leaf1 finds that the address mark bit included in the MAC migration extension community attribute information carried in the received MAC/IP route is 1, and the forwarding table item which is in an activated state and comprises static 1-1-1 is locally recorded, at this time, the A_leaf1 compares the priority (namely 3000) included in the MAC migration extension community attribute information carried in the received MAC/IP route with the priority (namely 2000) which is locally recorded and corresponds to 1-1-1 in the forwarding table item which is in an activated state and comprises static 1-1-1, and because the former is larger than the latter, the A_leaf1 sets the forwarding table item which is generated based on the received MAC/IP route and comprises static 1-1-1 as an activated state, and records the priority (namely 3000) which corresponds to static 1-1-1 in the generated forwarding table item; and setting the forwarding table entry which is generated last time and comprises static 1-1-1 to be in an inactive state.

Finally, the A_leaf1 receives an MAC/IP route issued by pUP1, wherein the MAC address carried in the MAC/IP route is 1-1-1, the address mark bit included in the carried MAC migration extension group attribute information is 1, and the priority included in the carried MAC migration extension group attribute information is 1000; the a_leaf1 finds that the address flag bit included in the MAC migration extended community attribute information carried in the MAC/IP route received this time is 1, and the forwarding table entry which is in the active state and includes static 1-1-1 is already recorded locally, at this time, the a_leaf1 compares the priority (i.e., 1000) included in the MAC migration extended community attribute information carried in the MAC/IP route received this time with the priority (i.e., 3000) corresponding to static 1-1-1 in the forwarding table entry which is in the active state and includes static 1-1-1 recorded locally, and since the former is smaller than the latter, the a_leaf1 will keep the state of the forwarding table entry which is in the active state and includes static 1-1-1, sets the forwarding table entry which is generated based on the MAC/IP route received this time to be in the inactive state, and records the priority (i.e., 1000) corresponding to static 1-1-1 in the forwarding table entry generated this time.

Example two

Assume that in a certain EVPN networking, a virtual machine 1 having a dynamic MAC address (e.g., MAC 1) first accesses an interface 1 on a VTEP device 1, the VTEP device 1 issues a MAC/IP route to its BGP EVPN neighbor (e.g., VTEP device 2), whereby the MAC address carried in the MAC/IP route is MAC1, the address flag bit included in the carried MAC migration extension group attribute information is 0 (to characterize the dynamic MAC address), and the priority information included in the carried MAC migration extension group attribute information includes the priority of the interface 1 and the migration number (i.e., 0) of the virtual machine 1.

The VTEP device 2 finds that the address tag bit included in the MAC migration extension community attribute information carried in this MAC/IP route is 0 and no forwarding table entry including dynamic MAC1 is recorded locally, at this time, the VTEP device 2 generates a forwarding table entry (referred to as forwarding table entry 1) including dynamic MAC1 based on this MAC/IP route, sets it to an active state, and records priority information corresponding to the dynamic MAC1 in the forwarding table entry 1.

Next, assuming that the virtual machine 1 migrates to the interface 2 on the VTEP device 3, the VTEP device 3 issues a MAC/IP route to its BGP EVPN neighbor (e.g., VTEP device 2), whereby the MAC address carried in the MAC/IP route is MAC1, the address flag bit included in the carried MAC migration extension group attribute information is 0, and the priority information included in the carried MAC migration extension group attribute information includes the priority of the interface 2 and the migration number (i.e., 1) of the virtual machine 1.

The VTEP device 2 finds that the address mark bit included in the MAC migration extension group attribute information carried in the received MAC/IP route is 0, and the forwarding table item which is in an active state and includes the dynamic MAC1 is locally recorded, at this time, the VTEP device 2 compares the priority of the interface 2 included in the MAC migration extension group attribute information carried in the received MAC/IP route with the priority of the interface 1 corresponding to the dynamic MAC1 included in the locally recorded forwarding table item 1, and if the priority of the interface 2 is greater than the priority of the interface 1, the VTEP device 2 sets the forwarding table item 2 including the dynamic 1-1-1 generated based on the received MAC/IP route as an active state and records the priority information corresponding to the dynamic 1-1-1 in the forwarding table item 2; forwarding entry 1 is set to inactive state.

As can be seen from the above technical solutions, in the embodiments of the present application, when any VTEP device in the EVPN network receives a MAC/IP advertisement route sent by an opposite VTEP device (that is, the VTEP device is a BGP EVPN neighbor with each other), once the MAC/IP advertisement route is found to carry MAC migration extension group attribute information, and an address tag bit included in the MAC migration extension group attribute information is an address tag bit used for characterizing a static address, and a first forwarding table entry including a static MAC/IP address carried in the MAC/IP advertisement route exists in a locally recorded forwarding table entry in an active state, determining, from the first forwarding table entry and the second forwarding table entry generated by the VTEP device based on the MAC/IP advertisement route, a forwarding table entry that needs to be in an active state according to first priority information corresponding to the MAC/IP address in the locally recorded first forwarding table entry and second priority information corresponding to the static MAC/IP address included in the MAC migration extension group attribute information; if the determined forwarding table entry is the first forwarding table entry, continuing to keep the first forwarding table entry in an activated state, and setting the second forwarding table entry in an inactivated state; and if the determined forwarding table entry is the second forwarding table entry, setting the first forwarding table entry to be in an inactive state and setting the second forwarding table entry to be in an active state.

Based on the same inventive concept, the present application further provides a routing processing device, where the device is applied to any VTEP device in an EVPN network, and the structural schematic diagram of the device is shown in fig. 3, and specifically includes:

a receiving module 31, configured to receive a MAC/IP advertisement route issued by a peer VTEP device, where the VTEP device and the peer VTEP device are border gateway protocol BGP EVPN neighbors;

a first determining module 32, configured to, if the MAC/IP advertisement route carries MAC migration extension group attribute information, an address tag bit included in the MAC migration extension group attribute information is an address tag bit used to characterize a static address, and a first forwarding table entry including a static MAC/IP address carried in the MAC/IP advertisement route exists in a forwarding table entry in an active state of a local record, re-determine, from the first forwarding table entry and a second forwarding table entry generated by the VTEP device based on the MAC/IP advertisement route, a forwarding table entry that needs to be in an active state according to first priority information corresponding to a MAC/IP address in the first forwarding table entry of the local record and second priority information corresponding to the static MAC/IP address included in the MAC migration extension group attribute information;

A first setting module 33, configured to keep the first forwarding table entry in an active state and set the second forwarding table entry in an inactive state if the forwarding table entry determined by the first determining module 32 is the first forwarding table entry;

and a second setting module 34, configured to set the first forwarding table entry to an inactive state and set the second forwarding table entry to an active state if the forwarding table entry determined by the first determining module 32 is the second forwarding table entry.

Preferably, only one priority is included in each of the first priority information and the second priority information, and the priority included in the first priority information is different from the priority included in the second priority information;

the first determining module 32 is specifically configured to determine that the forwarding table entry needs to be in an active state by:

if the priority included in the first priority information is greater than the priority included in the second priority information, determining that the first forwarding table entry is a forwarding table entry which needs to be in an activated state;

And if the priority included in the first priority information is smaller than the priority included in the second priority information, determining that the second forwarding table entry is the forwarding table entry which needs to be in an activated state.

Preferably, the first priority information and the second priority information each include a first priority and a second priority, and the second priority included in the first priority information is different from the second priority included in the second priority information;

if the first priority included in the first priority information is greater than the first priority included in the second priority information, determining that the first forwarding table entry is a forwarding table entry which needs to be in an activated state;

if the second priority included in the first priority information is greater than the second priority included in the second priority information, determining that the first forwarding table entry is a forwarding table entry which needs to be in an activated state;

and if the second priority included in the first priority information is smaller than the second priority included in the second priority information, determining that the second forwarding table entry is the forwarding table entry which needs to be in an activated state.

Preferably, the apparatus further comprises:

a second determining module (not shown in fig. 3), configured to, after the receiving module 31 receives the MAC/IP advertisement route, if the MAC/IP advertisement route carries MAC migration extension group attribute information, an address tag bit included in the MAC migration extension group attribute information is an address tag bit used for characterizing a dynamic address, and a third forwarding table entry including a dynamic MAC/IP address carried in the MAC/IP advertisement route exists in a forwarding table entry in an active state of a local record, and determine, from the third forwarding table entry and the fourth forwarding table entry generated by the VTEP device based on the MAC/IP advertisement route, that the forwarding table entry needs to be in an active state according to third priority information corresponding to a MAC/IP address in the third forwarding table entry in the local record and fourth priority information corresponding to the dynamic MAC/IP address included in the MAC migration extension group attribute information, where the dynamic MAC/IP address is a MAC/IP address of a user equipment;

A third setting module (not shown in fig. 3), configured to keep the third forwarding table entry in an active state and set the fourth forwarding table entry in an inactive state if the forwarding table entry determined by the second determining module is the third forwarding table entry;

a fourth setting module (not shown in fig. 3), configured to set the third forwarding table entry to an inactive state and set the fourth forwarding table entry to an active state if the forwarding table entry determined by the second determining module is the fourth forwarding table entry.

Preferably, the third priority information and the fourth priority information include a third priority and a fourth priority, the value of the third priority in the third priority information and the value of the third priority in the fourth priority information are both values of priority of an interface which is accessed to the VTEP equipment and is in communication with the user equipment and to which the user equipment corresponding to the dynamic MAC/IP address is accessed, and the value of the fourth priority in the third priority information and the value of the fourth priority in the fourth priority information are both values of migration times of the user equipment corresponding to the dynamic MAC/IP address;

The second determining module is specifically configured to determine that a forwarding table entry needs to be in an active state by:

if the third priority included in the third priority information is compared to be greater than the third priority included in the fourth priority information, determining that the third forwarding table entry is a forwarding table entry which needs to be in an activated state;

The present embodiments also provide an electronic device, as shown in fig. 4, including a processor 41 and a machine-readable storage medium 42, the machine-readable storage medium 42 storing machine-executable instructions executable by the processor 41, the processor 41 being caused by the machine-executable instructions to: the step of realizing the route processing method.

The machine-readable storage medium may include random access Memory (Random Access Memory, RAM) or Non-Volatile Memory (NVM), such as at least one magnetic disk Memory. In the alternative, the machine-readable storage medium may also be at least one memory device located remotely from the foregoing processor.

The processor may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU), a network processor (Network Processor, NP), etc.; but also digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

In yet another embodiment provided herein, there is also provided a computer readable storage medium having stored therein a computer program which when executed by a processor implements the steps of the routing processing method described above.

The foregoing description of the preferred embodiments of the present invention is not intended to limit the invention to the precise form disclosed, and any modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A routing processing method, wherein the method is applied to any scalable virtual local area network tunnel endpoint VTEP device in an ethernet virtual private network EVPN network, the method comprising:

receiving an MAC/IP notification route issued by opposite-end VTEP equipment, wherein the VTEP equipment and the opposite-end VTEP equipment are boundary gateway protocol BGP EVPN neighbors;

2. The method according to claim 1, wherein only one priority is included in each of the first priority information and the second priority information, and wherein the priority included in the first priority information is different from the priority included in the second priority information;

the forwarding entries that need to be in an active state are determined by:

3. The method according to claim 1, wherein a first priority and a second priority are included in the first priority information and the second priority information, and wherein a second priority included in the first priority information is different from a second priority included in the second priority information;

the forwarding entries that need to be in an active state are determined by:

4. The method according to claim 1, wherein the method further comprises:

after receiving the MAC/IP advertisement route, if the MAC/IP advertisement route carries MAC migration extension group attribute information, an address tag bit included in the MAC migration extension group attribute information is an address tag bit used for representing a dynamic address, and a third forwarding table item including a dynamic MAC/IP address carried in the MAC/IP advertisement route exists in a forwarding table item in an active state of a local record, determining, from the third forwarding table item and a fourth forwarding table item generated by the VTEP device based on the MAC/IP advertisement route, that a forwarding table item in an active state is needed according to third priority information corresponding to the MAC/IP address in the third forwarding table item in the local record and fourth priority information corresponding to the dynamic MAC/IP address included in the MAC migration extension group attribute information, where the dynamic MAC/IP address is a MAC/IP address of a user device;

If the determined forwarding table entry is the third forwarding table entry, continuing to keep the third forwarding table entry in an activated state, and setting the fourth forwarding table entry in an inactivated state;

and if the determined forwarding table entry is the fourth forwarding table entry, setting the third forwarding table entry to be in an inactive state and setting the fourth forwarding table entry to be in an active state.

5. The method according to claim 4, wherein the third priority information and the fourth priority information each include a third priority and a fourth priority, and a value of the third priority in the third priority information and a value of the third priority in the fourth priority information are both values of priorities of interfaces on the VTEP device to which the user device corresponding to the dynamic MAC/IP address is connected and which communicate with the user device, and a value of the fourth priority in the third priority information and a value of the fourth priority in the fourth priority information are both values of migration times of the user device corresponding to the dynamic MAC/IP address;

the forwarding entries that need to be in an active state are determined by:

6. A route processing device, wherein the device is applied to any scalable virtual local area network tunnel endpoint VTEP equipment in an ethernet virtual private network EVPN network, the device comprising:

the receiving module is used for receiving the MAC/IP advertising route issued by the VTEP equipment at the opposite end, wherein the VTEP equipment and the VTEP equipment at the opposite end are Boundary Gateway Protocol (BGP) EVPN neighbors;

7. The apparatus of claim 6, wherein only one priority is included in each of the first priority information and the second priority information, and wherein the priority included in the first priority information is different from the priority included in the second priority information;

the first determining module is specifically configured to determine that a forwarding table entry needs to be in an active state by:

8. The apparatus of claim 6, wherein the first priority information and the second priority information each include a first priority and a second priority, and wherein the second priority included in the first priority information is different from the second priority included in the second priority information;

9. The apparatus of claim 6, wherein the apparatus further comprises:

a second determining module, configured to, after the receiving module receives the MAC/IP advertisement route, if the MAC/IP advertisement route carries MAC migration extension group attribute information, an address tag bit included in the MAC migration extension group attribute information is an address tag bit used to characterize a dynamic address, and a third forwarding table item in an active state of a local record exists in a forwarding table item in an active state of the local record, determine, from the third forwarding table item and the fourth forwarding table item generated by the VTEP device based on the MAC/IP advertisement route, that a forwarding table item in an active state is required, according to third priority information corresponding to a MAC/IP address in the third forwarding table item in the local record and fourth priority information corresponding to the dynamic MAC/IP address included in the MAC migration extension group attribute information, where the dynamic MAC/IP address is a MAC/IP address of a user equipment;

A third setting module, configured to keep the third forwarding table entry in an active state if the forwarding table entry determined by the second determining module is the third forwarding table entry, and set the fourth forwarding table entry in an inactive state;

and the fourth setting module is used for setting the third forwarding table item to be in an inactive state and setting the fourth forwarding table item to be in an active state if the forwarding table item determined by the second determining module is the fourth forwarding table item.

10. The apparatus of claim 9, wherein the third priority information and the fourth priority information each include a third priority and a fourth priority, and a value of the third priority in the third priority information and a value of the third priority in the fourth priority information are both values of priorities of interfaces on the VTEP device to which the user device corresponding to the dynamic MAC/IP address is connected and which communicate with the user device, and a value of the fourth priority in the third priority information and a value of the fourth priority in the fourth priority information are both values of migration times of the user device corresponding to the dynamic MAC/IP address;