Method and equipment for optimizing generating tree network topology structure in presence of stacking equipment

Abstract

The invention provides a method and equipment for optimizing a generating tree network topology structure in presence of stacking equipment. The method comprises the following steps: selecting a root port and an appointed port after receiving an upstream BPDU (bridge protocol data unit) message by the stacking equipment; judging if the appointed port and the root port are on the same member equipment by the stacking equipment; if so, when generating the BPDU message for the appointed port, accumulating the path cost corresponding to the root port and the path cost in the upstream BPDU message to obtain the path cost of the generated BPDU message, and continuously transmitting the message to downstream equipment through the appointed port; if not, accumulating the path cost corresponding to the root port, the internal path cost of the stacking equipment and the path cost in the upstream BPDU message to obtain the path cost of the generated BPDU message, and continuously sending the message to the downstream equipment through the appointed port. According to the method, the generating tree network topology structure is optimized, so that a large amount of user flow is prevented from passing through stacking links and the influence of the problems of flow transmission delay, jitter and the like is reduced.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and a device for a spanning tree network topology with stacked devices. Background technique [0002] Currently, with the development and application of virtualization technology, stacking technology, as an N:1 virtualization technology, is widely used in data communication networks. IRF (Intelligent Resilient Framework, Intelligent Resilient Framework) technology is widely used to improve the reliability, usability and scalability of the network. Especially under the trend of more and more concentrated and large data centers, the requirements for processing performance of equipment are getting higher and higher, and the application of stacking technology can well meet this requirement. As the most important Layer 2 network protocol, Spanning Tree Protocol eliminates Layer 2 loops by selectively blocking redundant links in the network, and also has the function o...

AI Technical Summary

Problems solved by technology

For example, a large amount of user traffic may pass through stack links during forwarding along the spanning tree topology, resulting in stack link congestion and stack splitting.

At the same time, when there are many member devices in the stack device, user traffic may need to pass through multiple stack links, resulting in problems such as traffic transmission delay and jitter

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