BGP (Border Gateway Protocol) routing processing method and BGP routing equipment

Abstract

The invention discloses a BGP (Border Gateway Protocol) routing processing method and BGP routing equipment. The method comprises the following steps that: each routing equipment negotiates the capability of BGP router ID (Identity) during establishing neighbors; first routing equipment receives a routing update message containing second routing equipment BGP router ID sent by the second routing equipment, and the first routing equipment sends the own BGP router ID carried in the routing update message to third routing equipment; when the first routing equipment perceives neighbor flapping between the first routing equipment and the second routing equipment, after the first routing equipment invalidates received routing from the second routing equipment, the first routing equipment sends a routing withdrawing message which is used for withdrawing routing for generating neighbor flapping and contains the BGP router ID of the first routing equipment and the second routing equipment to the third routing equipment; and when the BGP router ID in the routing withdrawing message received by the third routing equipment is matched with the BGP router ID in the routing update message, the third routing equipment invalidates the routing for generating neighbor flapping. As the method and the equipment are applied, the interaction of the update message between neighbors during frequent flapping of routing neighbors can be greatly reduced, and the load of a CPU (Central Processing Unit) is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a Border Gateway Protocol (BGP) routing processing method and BGP routing equipment. Background technique [0002] As an inter-domain transmission protocol, BGP is widely used in complex network environments. A typical network diagram is as follows: figure 1 shown. exist figure 1 Among them, router A (RTA) and RTB, RTB and RTC, RTE, RTC and RTD, RTF, and RTE and RTF respectively establish BGP neighbor relationships (either IBGP or EBGP). RTA sends routes to RTB, and RTB sends routes to RTC and RTF. RTE sends routes, RTC sends routes to RTF and RTD, RTE sends routes to RTF, RTF sends routes to RTC. [0003] In the case of a large number of routes, when the network fails, due to the trigger update mechanism of BGP, it will continuously send update messages for updating or canceling to neighbors. An update message can carry up to 1000 BGP routes. When a large number of rout...

AI Technical Summary

Problems solved by technology

[0003] In the case of a large number of routes, when the network fails, due to the trigger update mechanism of BGP, it will continuously send update messages for updating or canceling to neighbors. An update message can carry up to 1000 BGP routes. When a large number of routes frequently flap , BGP neighbors will continuously send a large number of update packets, a large number of update packets not only occupy the link bandwidth, but also make the CPU extremely busy, and even affect the development of normal business

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