Distributed processing system and processing method for multi-generating tree protocol

Abstract

The invention relates to a multiple spanning tree protocol distributed processing system, comprising master control plate and interface plate, where the master control plate comprises multiple spanning tree calculating module and interface management module; and the interface plate comprises interface management module and multiple spanning tree adaptation module. And it also relates to a multiple spanning tree protocol distributed processing method, comprising: multiple spanning tree calculating module of the main control plate calculates interface statuses of the interface plate and sends status setting information to the interface plate; the interface plate sets interface statuses according to the status setting information and returns the setting results to the master control plate. And the calculation is simple, reducing processing burden on the interface plate and able to effectively reduce the master-slave communication bandwidth occupied control plane; and it senses link status variation of the whole equipment by using a mechanism that register call-back function informs of events, implementing external event processing in high efficiency; and it is simple to switch main and backup plates, and in the switching course, the flow of the system can be interrupted because of MSTP calculation.

Description

technical field [0001] The invention relates to routing technology, in particular to a distributed processing system and processing method of multiple spanning tree protocols of router equipment. Background technique [0002] With the continuous expansion of market demand, routers are more and more widely used in the network, and layer 2 applications emerge accordingly. In order to avoid the broadcast storm on the second layer, it is necessary to implement the MSTP (Multiple Spanning Tree Protocol, MSTP for short) on the router. [0003] MSTP prunes the ring network into a ring-free tree network, avoiding the proliferation and infinite loop of messages in the ring network, and also provides multiple redundant paths for data forwarding, and realizes VLAN ( Virtual Local Area Network (Virtual Local Area Network) data load balancing. Some existing MSTP technologies are based on multiple instances, each instance can map multiple VLANs, and its status needs to be calculated sep...

AI Technical Summary

Problems solved by technology

[0005] Using the traditional centralized MSTP calculation method, the operation of the state machine is run separately on the main control board and the interface board. Although the independent work of the interface board can be realized, the burden on the processor of the interface board is greatly increased; the main control board and the interface board In order to uniformly calculate the state of the MSTP state machine between the interface board and the interface board, it is necessary to exchange information frequently, which puts a lot of pressure on the master-slave communication, and it is easy to make calculation errors, resulting in disastrous consequences; MSTP itself is complex to calculate, and each operation MSTP has too many interactions between processors, so the probability of problems during active-standby switchover will greatly increase

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