A management method, device and system of BGP route

Abstract

The invention discloses a BGP route management method, which is used in route transmission among autonomous network systems and includes at least BGP home terminal equipment and BGP opposite terminal equipment. The method includes the following steps: the home terminal equipment obtains maximum BGP route number which can be accepted by the opposite terminal equipment; judge whether the number of the route to be sent exceeds the maximum BGP route number which can be accepted by the opposite equipment, before the home terminal equipment sends out route; if not exceed, continue to send out route to the opposite equipment and if exceed, stop route sending to the opposite equipment. The invention also discloses a BGP route management device which can realize the method and a BGP route autonomous system which can apply the method. The invention can avoid excessive BGP route transmission, which results in two-way resources waste on a sending terminal and a receiving terminal. In addition, the invention also can avoid BGP repetitive linkage interrupt caused by excessive BGP route transmission and effectively protect BGP linkage safety and equipment safety.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method, device and system for managing BGP routing information between autonomous networks. Background technique [0002] BGP (Border Gateway Protocol, Border Gateway Routing Protocol) is a routing protocol between autonomous network systems, and autonomous network systems often need to forward a large number of routes through the BGP protocol, so a large number of route forwarding and network devices are receiving and sending a large number of BGP Stability during routing is an urgent need to ensure. [0003] Currently there is a technology, which prevents the device from receiving an excessive number of routes and causing an unstable situation, such as insufficient memory, by setting the maximum number of acceptable routes on the specified BGP peer device. The specific implementation method of this technology is: for adjacent BGP peer devices A and B, an acceptable ma...

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Problems solved by technology

[0004] This method guarantees the stability of the device to a certain extent, but there are many limitations

For example: the device must check whether it exceeds the maximum limit N after it has received the route. This operation will inevitably be performed by occupying the system resources of the device, thus affecting the overall performance of the device; because the route exceeding the limit N Make a judgment after acceptance, it is very likely that the first acceptance process will cause insufficient equipment resources and cause failures, resulting in equipment instability

; and if it is detected that the limit N is exceeded, the BGP connection will be repeatedly interrupted and established in actual operation, which will cause repeated memory occupation and release, and will also adversely affect other functions of the device; in addition, the biggest feature of BGP is that the connection is stable and reliable , and if the connection is repeatedly interrupted to achieve the purpose of protecting the device, it will affect the traffic forwarded by the entire network

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