Method and equipment for route advertisement optimization and route selection

Abstract

The invention discloses a method and equipment for route advertisement optimization and route selection, which are applied to a system comprising a source router, at least two intermediate routers and a destination router, wherein a route the source router takes to reach the destination router through any one of the at least two intermediate routers is an equivalent route. The method comprises the following steps of: the source router receives route information protocol (RIP) messages sent by the intermediate routers and acquires the actual utility ratio REF parameters and the route information of the intermediate routers, which are carried by the route information protocol (RIP) messages; and the source router selects one intermediate router from the at least two intermediate routers to send a message to the destination router according to the actual utility ratio REF parameters.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and equipment for optimizing route announcement and route selection. Background technique [0002] RIP (Routing Information Protocol, Routing Information Protocol) is a protocol based on the Distance-Vector (Distance-Vector, D-V) algorithm. Routing information is exchanged through UDP packets, and the port number used is 520. In the RIP routing protocol, the hop count is used to measure the distance to the destination address, and the hop count is called the metric value. In RIP, the number of hops from a router to the network directly connected to it is 0, the number of hops to a network reachable through a router is 1, and so on. To limit the convergence time, RIP specifies that the metric value should be an integer between 0 and 15, and the hop count greater than or equal to 16 is defined as infinity, that is, the destination network or host is unreachable. [0003...

AI Technical Summary

Problems solved by technology

However, if the CPU of the selected next-hop device is busy at this time, R1 does not know it, which may cause loss of service traffic, and the link cannot be optimized according to the actual situation of the device.

[0036] Therefore, the disadvantage of the prior art is that: the current router has a high-priority data path for the routing protocol. When the device is busy, the routing neighbor will not be down, so that the neighbor cannot know the actual usage of the peer router. Therefore, the link cannot be optimized according to the actual usage of the device

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