Multi-VLAN loop detection method and system thereof

Abstract

The invention provides a multi-VLAN loop detection method and a system thereof, and the method comprises the following steps: S1, constructing a loop detection message, and carrying a VLAN to which a port belongs in a message data area; S2, starting global loop detection enabling, and starting loop detection enabling of a port; S3, sending a loop detection message to a port for starting loop detection enabling; S4, receiving the loop detection message by the port and carrying out loop detection; S5, acquiring a VLAN ID to which a receiving port of the current loop detection message belongs, and intersecting the VLAN ID with all VLAN IDs analyzed by a data area of the current loop detection message to acquire a VLAN ID set needing to be forwarded, namely a forwarded VLAN ID set; S6, respectively sending the analyzed loop detection message to all ports to which the loop detection message belongs in the forwarding VLAN ID set; and S7, performing loop detection after the port receives the loop detection message.

Description

technical field [0001] The present invention relates to the technical field of network communication, in particular, the present invention relates to a multi-VLAN loop detection method and system. Background technique [0002] Nowadays, with the rapid development of computer and its interconnection technology, Ethernet has become the most popular short-distance computer network so far, and the core component of Ethernet is Ethernet switch. In a complex network topology, network connection errors or configuration errors can easily lead to forwarding loops in the network, causing network devices to repeatedly send broadcast and multicast packets, resulting in a serious waste of network resources and device hardware resources, resulting in The equipment freezes, the operation and maintenance is slow, and even the network is paralyzed. [0003] In order to detect loops in the network in time and avoid serious impact on the entire network, a detection mechanism is provided, so t...

AI Technical Summary

Problems solved by technology

[0004] Yet existing loop detection technology all will send loop detection message one by one for each VLAN for the detection method of multi-VLAN, can't improve the loop detection efficiency for multiple VLANs like this

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