1-1
1 Smart Link Configuration
z 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.
z 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:
z Active/standby backup for dual-uplink networking
z 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 1-1 Network diagram of Smart Link
Switch A
Switch B Switch C
GE1/0/1 GE1/0/2
uplink uplink
Master Port 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.
