Method and device for realizing rip fast rerouting

A routing and fast technology, applied in the field of communication, can solve problems such as backup link data flow interruption, achieve the effect of improving reliability, avoiding manual configuration and dependence on optimal routing, and avoiding data flow interruption
CN104486214BActive Publication Date: 2018-01-09NEW H3C TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
NEW H3C TECH CO LTD
Publication Date
2018-01-09

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Abstract

The present invention provides a method and device for implementing RIP fast rerouting, which are applied to routers in a RIP network running Routing Information Protocol, wherein the method includes: updating the RIP routing table; updating the optimal route in the RIP routing table and the suboptimal route containing the backup tag are delivered as fast rerouting FRR. Through the technical scheme of the invention, the dependence of the backup route on the optimal route can be avoided, and the reliability of RIP fast rerouting can be improved.
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Description

technical field

[0001] The invention relates to the technical field of communications, in particular to a method and device for realizing RIP fast rerouting. Background technique

[0002] RIP (Routing Information Protocol, Routing Information Protocol) is a protocol based on a DV (Distance-Vector, distance vector) algorithm, which exchanges routing information through UDP (User Datagram Protocol, User Datagram Protocol) messages.

[0003] BFD (Bidirectional Forwarding Detection, bidirectional forwarding detection) is a general, standardized, medium-independent and protocol-independent fast fault detection mechanism, which is used to detect the connectivity of links in IP networks and ensure that communication between devices can be quickly detected faults, so that measures can be taken in time to ensure the continuous operation of the business.

[0004] RIP FRR (Fast ReRoute, fast rerouting) uses technologies such as BFD to perform link detection. If a failure of the primar...

Claims

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