Topology finding method for switching devices

Abstract

The invention relates to a topology finding method for switching devices. According to the topology finding method, firstly, a root device sends a broadcasting data packet with a keyword of Topology_Find and builds a global topology structure table inside the broadcasting data packet; other switching devices send dev_info data packets to a data packet receiving port and maintain local device management tables and enable the local device management tables to send topology_info data packets to the root device; and the root device maintains device information to the global topology structure table according to the dev_info data packets and the topology_info data packets. The topology finding method has the advantages that the quantity of required data packets and information content is very small, topological convergence rate and operation consumption are extremely low, and the processing performance of a whole topology system is improved; moreover, the topology finding method provided by the invention is superior to other network topology finding methods in occupation of device system resources and network resources.

Description

technical field [0001] The invention relates to a topology discovery method of switching equipment, which uses an information interaction mechanism between equipment to achieve the topology formation of equipment in a fast convergence network, and can realize topology discovery of local area network equipment in a very short time. Background technique [0002] With the rapid development and application of local area networks, the number of switching devices in the local area network is also increasing. The point-to-point device management method has become increasingly unable to meet the management needs of managers for switching devices. The cluster management of switches requires its core foundation It is to deploy a discovery strategy for devices in the entire network environment, which is used to form connections between various devices in the current network environment and locate device information, so that network administrators can understand the current network condi...

AI Technical Summary

Problems solved by technology

[0003] Various existing public topology discovery methods use a large number of complex device sniffing methods, use a large number of information packets and record hop count methods to collect topology information, consume large resources, have serious path loss, and take a long time to form the topology. Many disadvantages such as low convergence efficiency

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