3Com WX3000 Smart Link Configuration, Smart Link Overview, Basic Concepts in Smart Link

1 Smart Link Configuration

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The term switch used throughout this chapter refers to a switching device in a generic sense or the switching engine of a unified switch in the WX3000 series.

The sample output information in this manual was created on the WX3024. The output information on your device may vary.

Smart Link Overview

As shown in Figure 1-1, dual-uplink networking is widely applied currently. Usually, spanning tree protocol (STP) is used to implement link redundancy backup in the network. However, STP is not suitable for users with a high demand for convergence time. Smart Link can achieve active/standby link redundancy backup and fast convergence to meet the user demand.

Smart Link has the following features:

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Active/standby backup for dual-uplink networking Simple configuration and operation

Basic Concepts in Smart Link

Smart Link group

A Smart Link group consists of two member ports, one master port and one slave port. Normally, only one port (master or slave) is active, and the other port is blocked, that is, in the standby state. When link failure occurs on the port in active state, the Smart Link group will block the port automatically and turn standby state to active state on the blocked port.

Figure 1-1Network diagram of Smart Link

uplinkuplink

Switch B		Switch C
GE1/0/1		GE1/0/2
Master Port	Switch A	Slave Port

In Figure 1-1, GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2 on Switch A are two member ports of a Smart Link group.

1-1