Method, device and system for migrating routing information

A routing and process technology, applied in the field of communication networks, can solve problems such as affecting normal services, affecting normal services, and increasing user configuration workload.

Inactive Publication Date: 2011-03-30
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] When using the first method to migrate VPN routes, it is necessary to delete the VPN routes of the BGP process and then reconfigure them. This will cause the loss of forwarding information, affect normal services during the migration process, and require repeated configurations, which increases the User-configured workload;
[0008] Using the second method still needs to delete the route of the source BGP process during the migration process, resulting in the loss of forwarding information and affecting normal business during the migration process

Method used

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  • Method, device and system for migrating routing information
  • Method, device and system for migrating routing information
  • Method, device and system for migrating routing information

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Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0021] In the embodiment of the present invention, the system for migrating routing information, such as figure 1 As shown, it includes: a neighbor route receiving and distributing module, a VRF route receiving and distributing module, an RD distribution decision module, a first BGP process and a second BGP process.

[0022] refer to figure 2 , a system based on migrating routing information, illustrates a flow chart of a method for migrating routing information provided by an embodiment of the present invention. according to figure 2 It can be seen that a method for migrating routing information includes:

[0023] S1, when the routing information of the RD needs to be migrated from the first BGP process to the second BGP process,...

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Abstract

The embodiment of the invention discloses a method and equipment for migrating routing information, and belongs to the field of communication networks. The method comprises the following steps of: migrating an RD (route distinguisher) to be migrated to a second BGP (border gateway protocol) process; traversing all VPN (virtual private network) routes under the RD to be migrated, and backing up all the VPN routes under the RD to be migrated to the second BGP process; ageing the routing information of the RD to be migrated after all the VPN routes under the RD to be migrated are backed up, and informing the second BGP process after the ageing; and after the notification that the second BGP process completely migrates the routing information of the RD to be migrated is received, deleting the RD to be migrated and all the VPN routes under the RD to be migrated. According to the embodiment of the invention, uninterrupted routing effect is ensured during migrating the routing information.

Description

technical field [0001] The invention relates to the field of communication networks, in particular to a method, device and system for migrating routing information. Background technique [0002] In a VPN (Virtual Private Network, virtual private network), address space independence is realized through an RD (Route Distinguisher, routing identifier). The current VPN business is developing rapidly, and the market has put forward higher and higher requirements for the VPN performance of high-end routers, mainly reflected in the requirements for the number of VRF (Virtual Routing Forwarding, routing forwarding table) and the number of private network routes. As the number of VRFs increases and VPN routes increase, the BGP (Border Gateway Protocol, Border Gateway Protocol) process that is responsible for processing these VPN routes will be very burdened, so it is necessary to separate VPN routes from a BGP process and migrate to other BGP processes, thereby reducing the load of ...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/46H04L29/06H04L45/74
Inventor 陈双龙张立新
Owner HUAWEI TECH CO LTD
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