CN114374637A

CN114374637A - Route processing method and device

Info

Publication number: CN114374637A
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: 2022-04-19
Anticipated expiration: 2041-12-23
Also published as: CN114374637B

Abstract

The application provides a route processing method and device. The method is applied to any VTEP device in EVPN networking and comprises the following steps: receiving an MAC/IP notification route issued by opposite-end VTEP equipment; if the route carries MAC migration extended community attribute information, an address tag bit included in the information is an address tag bit used for representing a static address, and a first forwarding table entry including a static MAC/IP address carried in the route exists in a locally recorded forwarding table entry in an active state, determining a forwarding table entry required to be in an active state from the first forwarding table entry and a second forwarding table entry generated by the VTEP device based on the route again according to first priority information corresponding to the MAC/IP address in the first forwarding table entry and second priority information corresponding to the static MAC/IP address included in the information, and setting the forwarding table entry to be in the active state. The application can improve network experience.

Description

Route processing method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for processing a route.

Background

In an Ethernet Virtual Private Network (EVPN) networking, for any scalable Virtual local area Network Tunnel endpoint (VTEP) device, when receiving a MAC/IP advertisement route carrying MAC migration extended community attribute information sent by a peer VTEP device (i.e., a neighbor of a Border Gateway Protocol (BGP) EVPN with the VTEP device), once finding that the same static MAC/IP address exists based on an address flag bit included in the MAC migration extended community attribute information, a corresponding collision handling operation is performed, for example, the VTEP device randomly activates a forwarding entry from forwarding entries corresponding to the same static MAC/IP address.

However, in such a routing processing manner, in various situations such as when a user equipment (e.g., a virtual machine, a host, etc.) is erroneously accessed to multiple VTEP devices, it is easy to cause that a forwarding path corresponding to an activated forwarding entry is an erroneous forwarding path, and thus network experience is affected.

Disclosure of Invention

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

According to a first aspect of embodiments of the present application, there is provided a route processing method, which is applied to any VTEP device in EVPN networking, and includes:

receiving an MAC/IP notification 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 extended community attribute information, an address tag bit included in the MAC migration extended community attribute information is an address tag bit used for representing a static address, and a locally recorded first forwarding entry in an activated state includes a static MAC/IP address, determining a forwarding entry required to be in an activated state from the first forwarding entry and a second forwarding entry generated by the VTEP device based on the MAC/IP notification route again according to first priority information corresponding to the MAC/IP address in the locally recorded first forwarding entry and second priority information corresponding to the static MAC/IP address included in the MAC migration extended community 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 a non-activated 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 the embodiments of the present application, there is provided a route processing apparatus, which is applied to any VTEP device in EVPN networking, and includes:

a receiving module, configured to receive an MAC/IP advertisement route issued by an opposite-end VTEP device, where the VTEP device and the opposite-end VTEP device are BGP EVPN neighbors;

a first determining module, configured to, if the MAC/IP advertised route carries MAC migration extended community attribute information, an address tag bit included in the MAC migration extended community attribute information is an address tag bit used to represent a static address, and a locally recorded forwarding entry in an active state includes a first forwarding entry including the static MAC/IP address carried in the MAC/IP advertised route, determining a forwarding table entry which needs to be in an activated state from the first forwarding table entry and a second forwarding table entry generated by the VTEP device based on the MAC/IP notification route according to locally recorded first priority information corresponding to the MAC/IP address in the first forwarding table entry and second priority information corresponding to the static MAC/IP address included in the MAC migration extended community attribute information;

a first setting module, configured to, if the forwarding table entry determined by the first determining module is the first forwarding table entry, continue to keep the first forwarding table entry in an activated state, and set the second forwarding table entry in a non-activated state;

a second setting module, configured to set the first forwarding table entry to a non-activated state and set the second forwarding table entry to an activated state if the forwarding table entry determined by the first determining module is the second forwarding table entry.

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

in this embodiment, for any VTEP device in the EVPN networking, when receiving a MAC/IP advertisement route sent by a peer VTEP device (that is, the VTEP device is a BGP EVPN neighbor), upon finding that the MAC/IP advertisement route carries MAC migration extended community attribute information, and an address tag bit included in the MAC migration extended community attribute information is an address tag bit used for characterizing a static address, and a first forwarding entry including the static MAC/IP address carried in the MAC/IP advertisement route exists in a locally recorded forwarding entry in an active state, according to first priority information corresponding to the MAC/IP address in the locally recorded first forwarding entry and second priority information corresponding to the static MAC/IP address included in the MAC migration extended community attribute information, the first forwarding entry and a second forwarding entry generated by the VTEP device based on the MAC/IP advertisement route are retransmitted Determining a forwarding table entry required to be in an activated state; 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 a non-activated 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.

Therefore, the VTEP equipment can activate the corresponding forwarding table entry accurately based on the corresponding priority of the same static MAC/IP address, so as to activate the corresponding forwarding path accurately, 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 application, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

Fig. 1 is a schematic flowchart of a routing processing method according to an embodiment of the present application;

fig. 2 is a schematic diagram of an architecture of an EVPN networking network to which a routing processing method provided in the embodiment of the present application is applied;

fig. 3 is a schematic structural diagram of a route processing apparatus 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 the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the 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 and all possible combinations of one or more of the associated listed items.

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

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

An embodiment of the present application provides a routing processing method, which is applied to any VTEP device in an EVPN networking, and as shown in fig. 1, the method may include the following steps:

s11, receiving the MAC/IP notification route issued by the opposite end VTEP device.

In this step, the VTEP device and the opposite VTEP device are BGP EVPN neighbors.

S12, if the MAC/IP advertised route carries MAC migration extended community attribute information, the address tag bit included in the MAC migration extended community attribute information is an address tag bit used for representing a static address, and a first forwarding entry including the static MAC/IP address carried in the MAC/IP advertised route exists in the locally recorded forwarding entry in the active state, determining a forwarding entry required to be in the active state again from the first forwarding entry and a second forwarding entry generated by the VTEP device based on the MAC/IP advertised route according to first priority information corresponding to the MAC/IP address in the locally recorded first forwarding entry and second priority information corresponding to the static MAC/IP address included in the MAC migration extended community attribute information.

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

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

Specifically, in step S12, the address tag peer included in the MAC migration extended community attribute information is present in a tags (Flags) field, and the second priority information included in the MAC migration extended community attribute information is present in a sequence number field.

In addition, in the above 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 apparatus may specifically determine the forwarding entry that needs to be in the activated state by the following means:

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 higher 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 the activated state.

In another example, a first priority (which may be referred to as a high priority) and a second priority (which may be referred to as a low priority) may be included in each of the first priority information and the second priority information, 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 greater than the first priority included in the second priority information through comparison, determining that the first forwarding table entry is a 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 through comparison, continuously comparing 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 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 the activated state.

It should be noted that, in step S12, the static MAC/IP address carried in the MAC/IP advertisement route may be a static MAC/IP address of a designated interface on the VTEP device, or may be a static MAC/IP address of a user equipment accessing to the VTEP device, in this case, the MAC/IP address included in the 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 a local user equipment learned by the VTEP device, or may be a MAC/IP address of a user equipment on a peer 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 other processes executed by the VTEP apparatus after the step S13 or the step S14 are prior art 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 with a dynamic MAC/IP address, after receiving the MAC/IP advertisement route, the VTEP may further perform the following operations:

if the MAC/IP advertisement route carries the MAC migration extended community attribute information, the address tag bit included in the MAC migration extended community attribute information is an address tag bit used for representing a dynamic address, and a third forwarding table entry including a dynamic MAC/IP address carried in the MAC/IP advertisement route exists in the locally recorded forwarding table entries in an activated state, determining the forwarding table entry required to be in an activated state again from the third forwarding table entry and a fourth forwarding table entry generated by the VTEP device based on the MAC/IP notification route according to third priority information corresponding to the MAC/IP address in the locally recorded third forwarding table entry and fourth priority information corresponding to the dynamic MAC/IP address included in the MAC migration extended community attribute information, wherein, the dynamic MAC/IP address is the MAC/IP address of the user equipment;

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 a non-activated 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.

Specifically, in this operation flow, the third priority information and the fourth priority information each include a third priority (which may be referred to as a high priority) and a fourth priority (which may be referred to as a low 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, which communicate with the user equipment, on the VTEP equipment accessed by the user equipment corresponding to the dynamic MAC/IP address, 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 migration times of the user equipment corresponding to the dynamic MAC/IP address.

In this case, the VTEP apparatus may determine that the forwarding table entry needs to be in an activated 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 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;

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 the activated state;

if the third priority included in the third priority information is equal to the third priority included in the fourth priority information through comparison, the fourth priority included in the third priority information and the fourth priority included in the fourth priority information are continuously compared;

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

The above route processing method is described in detail with reference to specific embodiments.

Example one

As shown in fig. 2, User Plane (UP) devices (such as pUP1, pUP2 and pUP3 shown in fig. 2) as VTEP devices simultaneously act as shared gateways of Optical Line Terminal (OLT) devices which have dual-homing access to leaf nodes (such as A _ leaf1 and A _ leaf2 shown in fig. 2) as VTEP devices; suppose that certain interfaces on the pUP1, pUP2 and pUP3 for accepting three-Layer Virtual Private Network (L3 VPN) traffic are all configured with the same static MAC address, for example, 1-1-1, and all access to the same Virtual Switch Instance (VSI) (for example, VSI VPNa); based on the range of 0-65535, the administrator configures corresponding priorities for 1-1-1 on the sides of pUP1, pUP2 and pUP3, the higher the numerical value is, the higher the indicated priority is, the corresponding priority is 1000 for 1-1-1 on the side of pUP1, the corresponding priority is 2000 for 1-1-1 on the side of pUP2, and the corresponding priority is 3000 for 1-1-1 on the side of pUP 3.

In fig. 2, a _ leaf1 and a _ leaf2 both establish BGP EVPN neighbor relations with all the pups, and these pups issue MAC/IP routes carrying 1-1-1 and MAC migration extension community attribute information to a _ leaf1 and a _ leaf2, where the MAC migration extension community attribute information carried in each MAC/IP route includes an address flag bit and a priority corresponding to 1-1-1. Here, the address flag bits included in the MAC migration extended community attribute information carried in each MAC/IP route may be all 1, so as to represent that 1-1-1 is a static MAC address.

Taking the example that pUP1, pUP2 and pUP3 issue MAC/IP route carrying 1-1-1 to A _ leaf1, suppose 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 finds that the address flag bit included in the MAC migration extended community attribute information carried in the MAC/IP route is 1, and no static forwarding table entry including 1-1-1 is locally recorded, at this time, the a _ leaf1 generates a forwarding table entry including static 1-1-1 based on the MAC/IP route, sets the forwarding table entry to an active state, and records the priority corresponding to the static 1-1-1 in the forwarding table entry (i.e., 2000).

Next, a _ leaf1 receives the MAC/IP route issued by the pUP3, where the MAC address carried in the MAC/IP route is 1-1-1, the address flag bit included in the carried MAC migration extended community attribute information is 1, and the priority included in the carried MAC migration extended community attribute information is 3000; 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 a forwarding entry that is in an active state and includes static 1-1-1 is already recorded locally, at this time, a _ leaf1 compares the size of the priority (i.e., 3000) included in the MAC migration extended community attribute information carried in the MAC/IP route received this time with the size of the priority (i.e., 2000) corresponding to 1-1-1 in the forwarding entry that is in an active state and includes static 1-1-1 and that is locally recorded, and since the former is larger than the latter, a _ leaf1 sets the forwarding entry that includes static 1-1-1 generated based on the MAC/IP route received this time to an active state, and records the priority (i.e., 3000) (ii) a And setting the forwarding table entry which is generated last time and comprises static 1-1-1 as an inactive state.

Finally, the A _ leaf1 receives the MAC/IP route issued by the pUP1, the MAC address carried in the MAC/IP route is 1-1-1, the address mark bit included in the carried MAC migration extended community attribute information is 1, and the priority included in the carried MAC migration extended community attribute information is 1000; 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 a forwarding table entry which is in an activated state and includes static 1-1-1 is locally recorded, at this time, A _ leaf1 compares the size of 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 size of the priority (i.e., 3000) corresponding to static 1-1-1-1 in the forwarding table entries which are in an activated state and include static 1-1-1 and are locally recorded, and since the former is smaller than the latter, A _ leaf1 keeps the state of the forwarding table entry which is in an activated state and includes static 1-1-1 unchanged, and sets the forwarding table entry which includes static 1-1 and is generated based on the MAC/IP route received this time to be inactive And recording the corresponding priority (i.e. 1000) of static 1-1-1 in the forwarding table entry generated this time.

Example two

Assuming that in a certain EVPN networking network, a virtual machine 1 with a dynamic MAC address (e.g., MAC1) 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), where the MAC address carried in the MAC/IP route is MAC1, the address flag bit included in the carried MAC migration extended community attribute information is 0 (used to characterize the dynamic MAC address), and the priority information included in the carried MAC migration extended community attribute information includes the priority of the interface 1 and the migration number of times of the virtual machine 1 (i.e., 0).

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

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

VTEP device 2 finds that the address tag bit included in the MAC migration extended community attribute information carried in the MAC/IP route received this time is 0, and a forwarding table entry in an active state and including dynamic MAC1 is locally recorded, and at this time, comparing the priority of the interface 2 included in the MAC migration extended community attribute information carried in the MAC/IP route received this time with the priority of the interface 1 corresponding to the dynamic MAC1 included in the forwarding table entry 1 recorded locally by the VTEP device 2, assuming that the priority of the interface 2 is greater than the priority of the interface 1, the VTEP device 2 sets the forwarding table entry 2 including dynamic 1-1-1 generated based on the MAC/IP route received this time to an active state, recording the priority information corresponding to the dynamic 1-1-1 in the forwarding table entry 2; the forwarding table entry 1 is set to the inactive state.

As can be seen from the above technical solutions, in this embodiment of the present application, for any VTEP device in an EVPN networking, when receiving a MAC/IP advertisement route sent by a peer VTEP device (i.e., that is, the VTEP device is a BGP EVPN neighbor to the VTEP device), once it is found that the MAC/IP advertisement route carries MAC migration extended community attribute information, and an address tag bit included in the MAC migration extended community attribute information is an address tag bit used for characterizing a static address, and a first forwarding entry including the static MAC/IP address carried in the MAC/IP advertisement route exists in a locally recorded forwarding entry in an active state, according to first priority information corresponding to the MAC/IP address in the locally recorded first forwarding entry and second priority information corresponding to the static MAC/IP address included in the MAC migration extended community attribute information, determining the forwarding table entry which needs to be in an activated state from the first forwarding table entry and a second forwarding table entry generated by the VTEP equipment based on the MAC/IP notification route; 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 a non-activated 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 apparatus, where the apparatus is applied to any VTEP device in EVPN networking, and a schematic structural diagram of the apparatus is shown in fig. 3, and specifically includes:

a receiving module 31, configured to receive a MAC/IP advertisement route issued by an opposite-end VTEP device, where the VTEP device and the opposite-end VTEP device are border gateway protocol BGP EVPN neighbors with each other;

a first determining module 32, configured to, if the MAC/IP advertised route carries MAC migration extended community attribute information, an address tag bit included in the MAC migration extended community attribute information is an address tag bit used for representing a static address, and a locally recorded forwarding entry in an active state includes a first forwarding entry including the static MAC/IP address carried in the MAC/IP advertised route, determining a forwarding table entry which needs to be in an activated state from the first forwarding table entry and a second forwarding table entry generated by the VTEP device based on the MAC/IP notification route according to locally recorded first priority information corresponding to the MAC/IP address in the first forwarding table entry and second priority information corresponding to the static MAC/IP address included in the MAC migration extended community attribute information;

a first setting module 33, configured to, if the forwarding table entry determined by the first determining module 32 is the first forwarding table entry, continue to keep the first forwarding table entry in an activated state, and set the second forwarding table entry in an inactivated state;

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, each of the first priority information and the second priority information includes only one priority, 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 a forwarding entry that needs to be in an activated state by the following means:

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

Preferably, the first priority information and the second priority information both 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 smaller than the first priority included in the second priority information, determining that the second 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 a 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 advertised route, if the MAC/IP advertised route carries MAC migration extended community attribute information, an address tag bit included in the MAC migration extended community attribute information is an address tag bit used for representing a dynamic address, and a third forwarding entry including a dynamic MAC/IP address carried in the MAC/IP advertised route exists in a locally recorded forwarding entry in an active state, determine, from the third forwarding entry and a fourth forwarding entry generated by the VTEP device based on the MAC/IP route, that the forwarding entry needs to be activated again according to third priority information corresponding to the MAC/IP address in the locally recorded third forwarding entry and fourth priority information corresponding to the dynamic MAC/IP address included in the MAC migration extended community attribute information Forwarding table entries of states, wherein the dynamic MAC/IP address is the MAC/IP address of the user equipment;

a third setting module (not shown in fig. 3), configured to, if the forwarding table entry determined by the second determining module is the third forwarding table entry, continue to keep the third forwarding table entry in an activated state, and set the fourth forwarding table entry in a non-activated state;

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

Preferably, the third priority information and the fourth priority information both 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 priority values of interfaces, which communicate with the user equipment, on VTEP equipment accessed by the user equipment corresponding to the dynamic MAC/IP address, where the interfaces communicate with the user equipment, 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 migration times of the user equipment corresponding to the dynamic MAC/IP address;

the second determining module is specifically configured to determine a forwarding entry that needs to be in an activated state by the following means:

if the third priority included in the third priority information is greater than the third priority included in the fourth priority information by comparison, determining that the third forwarding table entry is a 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 a 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 through comparison, continuously comparing the fourth priority included in the third priority information with the fourth priority included in the fourth priority information;

An electronic device is further provided in the embodiments of the present application, as shown in fig. 4, and includes a processor 41 and a machine-readable storage medium 42, where the machine-readable storage medium 42 stores machine-executable instructions that can be executed by the processor 41, and the processor 41 is caused by the machine-executable instructions to: and implementing the steps of the routing processing method.

The machine-readable storage medium may include a Random Access Memory (RAM) or a Non-Volatile Memory (NVM), such as at least one disk Memory. Alternatively, the machine-readable storage medium may be at least one memory device located remotely from the processor.

The Processor may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but also Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components.

In yet another embodiment provided by the present application, a computer-readable storage medium is further provided, in which a computer program is stored, and the computer program realizes the steps of the above-mentioned route processing method when being executed by a processor.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A routing processing method is applied to any extensible virtual local area network tunnel endpoint (VTEP) equipment in Ethernet Virtual Private Network (EVPN) networking, and comprises the following steps:

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

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

determining a forwarding table entry required to be in an activated state by the following steps:

3. The method according to claim 1, wherein 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;

4. The method of claim 1, further comprising:

after the MAC/IP advertised route is received, if the MAC/IP advertised route carries MAC migration extended community attribute information, an address tag bit included in the MAC migration extended community attribute information is an address tag bit used for representing a dynamic address, and a third forwarding entry including a dynamic MAC/IP address carried in the MAC/IP advertised route exists in locally recorded forwarding entries in an active state, determining a forwarding entry required to be in an active state again from the third forwarding entry and a fourth forwarding entry generated by the VTEP device based on the MAC/IP advertised route according to third priority information corresponding to the MAC/IP address in the locally recorded third forwarding entry and fourth priority information corresponding to the dynamic MAC/IP address included in the MAC migration extended community attribute information, wherein, the dynamic MAC/IP address is the MAC/IP address of the user equipment;

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, which communicate with the user equipment, on VTEP equipment accessed by the user equipment and corresponding to the dynamic MAC/IP address, 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 migration times of the user equipment corresponding to the dynamic MAC/IP address;

6. A routing processing apparatus, applied to any scalable virtual local area network tunnel endpoint, VTEP, device in an ethernet virtual private network, EVPN, networking, the apparatus comprising:

a receiving module, configured to receive an MAC/IP advertisement route issued by an opposite-end VTEP device, where the VTEP device and the opposite-end VTEP device are border gateway protocol BGP EVPN neighbors with each other;

7. The apparatus according to claim 6, wherein each of the first priority information and the second priority information includes only one priority, 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 a forwarding entry that needs to be in an activated state by the following means:

8. The apparatus according to 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, further comprising:

a second determining module, configured to, after the receiving module receives the MAC/IP advertised route, if the MAC/IP advertised route carries MAC migration extended community attribute information, an address tag bit included in the MAC migration extended community attribute information is an address tag bit used to represent a dynamic address, and a third forwarding entry including a dynamic MAC/IP address carried in the MAC/IP advertised route exists in a locally recorded forwarding entry in an active state, re-determine a forwarding entry that needs to be in an active state from the third forwarding entry and a fourth forwarding entry generated by the VTEP advertised device based on the MAC/IP advertised route according to third priority information corresponding to the MAC/IP address in the locally recorded third forwarding entry and fourth priority information corresponding to the dynamic MAC/IP address included in the MAC migration extended community attribute information, wherein, the dynamic MAC/IP address is the MAC/IP address of the user equipment;

a third setting module, configured to, if the forwarding table entry determined by the second determining module is the third forwarding table entry, continue to keep the third forwarding table entry in an activated state, and set the fourth forwarding table entry in a deactivated state;

a fourth setting module, configured to set the third forwarding table entry to a non-activated state and set the fourth forwarding table entry to an activated state if the forwarding table entry determined by the second determining module is the fourth forwarding table entry.

10. The apparatus according to 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 priority values of interfaces, which communicate with the user equipment, on VTEP equipment accessed by the user equipment corresponding to the dynamic MAC/IP address, where the interfaces communicate with the user equipment, 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 migration times of the user equipment corresponding to the dynamic MAC/IP address;