3Com 4210G Series - Monitor Link Configuration Example; Displaying and Maintaining Monitor Link

2-3
Displaying and Maintaining Monitor Link
To do… Use the command… Remarks
Display monitor link group
information
display monitor-link group
{ group-id | all }
Available in any view
Monitor Link Configuration Example
Network requirements
As shown in Figure 2-1:
z Device C is dually uplinked to Device A through a smart link group.
z It is required that when GigabitEthernet1/0/1 or GigabitEthernet1/0/2 of Device A fails, Device C
can sense the link failure and perform link switchover in the smart link group.
For detailed information about smart link, refer to Smart Link Configuration in the High Availability
Volume.
Figure 2-1 Network diagram for smart link in combination with monitor link configuration
Device A
Device B
Device C
Device D
GE1/0/1 GE1/0/2
GE1/0/1
GE1/0/2
GE1/0/1
GE1/0/2
GE1/0/1 GE1/0/2
Configuration procedure
1) Configuration on Device C
# Disable STP on GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2 separately.
<DeviceC> system-view
[DeviceC] interface gigabitethernet 1/0/1
[DeviceC-GigabitEthernet1/0/1] undo stp enable
[DeviceC-GigabitEthernet1/0/1] quit
[DeviceC] interface gigabitethernet 1/0/2
[DeviceC-GigabitEthernet1/0/2] undo stp enable