Migrating method and migrating device for VRF, and VRF distributed communication system

A distributed communication and distributed technology, applied in the field of communication network, can solve the problems of loss of forwarding information and affecting normal business, etc.

Inactive Publication Date: 2013-01-02
深圳市智通天下科技服务有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

[0024] In the process of implementing the present invention, the inventor found that in the prior art, one command is used to migrate the VRF from one BGP to another BGP without repeated configuration, but it needs to delete the VRF or delete the peer process for processing, resulting in the loss of forwarding information , causing normal business to be affected during the migration process

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  • Migrating method and migrating device for VRF, and VRF distributed communication system
  • Migrating method and migrating device for VRF, and VRF distributed communication system
  • Migrating method and migrating device for VRF, and VRF distributed communication system

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Embodiment Construction

[0055] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0056] refer to figure 2 , illustrates a flow chart of a VRF migration method provided by an embodiment of the present invention. according to figure 2 It can be seen that a VRF migration method includes:

[0057] S001. When it is determined that a VRF needs to be migrated from a first BGP process to a second BGP process, the first BGP process marks the VRF as a cut-out state, and retains the routing information of the VRF;

[0058] In this example, you can trigger the first BGP process to migrate the VRF by configuring the VRF dynamic migration command. The command line for VRF dynamic migration is:

[0059] shift vpn-instance vpn-instance-name distributed-index number

[0060] Among them, vpn-instance-name: the name of the vpn-instance...

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Abstract

A method and apparatus for transferring Virtual Routing and Forwarding (VRF) and a VRF distributed communication system are provided by the embodiments of the present invention. Wherein, when the requirement of transferring one VRF of a first BGP process unit to a second Border Gateway Protocol (BGP) process is determined, the first BGP process unit is used for marking the VRF as cut out state, reserving the routing information of the VRF, and transferring the VRF marked as cut out state to a second BGP process unit; the second BGP process unit is used for receiving the VRF transferred from the first BGP process unit, performing Graceful Restart (GR) for the VRF, and notifying the first BGP process unit to delete the routing information of the VRF after the GR is finished. After receiving the notification, the first BGP process unit deletes the routing information of the VRF. Thus in the case that services are ensured to be uninterrupted, VRF transfer between different BGP processes is realized and the system performance and service quality are improved.

Description

technical field [0001] The present invention relates to a communication network, in particular to a virtual private network routing and forwarding table (Virtual Private Network Routing and Forwarding, VRF) migration method, migration device and VRF distributed communication system. Background technique [0002] At present, the market puts forward higher and higher requirements on the performance of a high-end router virtual private network (Virtual Private Network, VPN), which is mainly reflected in the requirements on the number of VRFs and the number of private network routes. Massive VRFs and private network routes have brought challenges to routers, mainly as follows: [0003] Memory consumption: Due to the increase in the number of routes for a single VRF, the total number of routes in the entire private network will be very large, which requires high system memory; [0004] CPU processing speed: A large number of VRFs are configured in the system. The private network...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/715H04L12/751H04L12/46H04L45/02
CPCH04L45/021H04L45/02H04L45/033
Inventor 涂伯颜张立新陈双龙刘建文许健彬刘小辉
Owner 深圳市智通天下科技服务有限公司
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