Port mirroring method and device in stacking equipment

Abstract

The invention provides a port mirroring method and device in stacking equipment, which are applied to an internet data center (IDC), wherein the IDC comprises at least two two-layer switchboards; the at least two two-layer switchboards form stacking equipment; two uplink ports of the stacking equipment are used as mirroring source ports; another port in addition to the mirroring source ports is used as a mirroring destination port; a spanning tree protocol is run on the two-layer switchboards in which the mirroring source ports are located for blocking one of mirroring source ports; the two-layer switchboards in which the mirroring source ports are located confirm a spanning tree state of the mirroring source port receiving a message after receiving the message through the mirroring source port; if the spanning tree state is a forwarding state, the mirroring message obtained by mirroring the message is forwarded to the mirroring destination port; and if the spanning tree state is a blocking state, the message is not mirrored. The invention can prevent the condition that the flow can not be normally forwarded due to the drift of an address resolution protocol (ARP).

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a port mirroring method and device in a stacking device. Background technique [0002] The network system has high requirements for access speed, stability, and manageability, so that the Internet Data Center (IDC) that provides network services emerges as the times require, and is gradually forming an industry. In order to ensure the uninterrupted operation of IDC core application services, the overall design of the network and equipment configuration are designed in accordance with the requirements of dual backup, eliminating single point failures in network connections, and providing failover of key equipment. In order to ensure high availability and scalability of the IDC network architecture, stacking technology and Multiple Spanning Tree Protocol (MSTP) technology are often used. Such as figure 1 As shown, in an IDC, the service server, the access switch and...

AI Technical Summary

Problems solved by technology

During the drifting process, sometimes the ARP entry is for port 2, so the data traffic will be sent to the access switch 2 by the access switch 1 through the port 2 according to the ARP entry of the port 2 at this time, and Port 1 of the access switch 2 is discarded, resulting in traffic not being forwarded normally

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