Configuring Monitor Link; Configuration Prerequisites - H3C S5120-EI Series Operation Manual

Do not manually shut down or bring up the downlink ports in a monitor link group.

Configuring Monitor Link

Configuration Prerequisites

Before assigning a port to a monitor link group, make sure the port is not the member port of any
aggregation group.
Configuration Procedure
Follow these steps to configure monitor link:
Enter system view
Create a monitor link group and enter
monitor link group view
Configure the
uplink for the
monitor link group
Configure the
downlink for the
monitor link group
A port can be assigned to only one monitor link group.
You are recommended to configure uplink ports prior to downlink ports, thus avoiding undesired
down/up state changes on the downlink ports.
Monitor Link Configuration Example
Network requirements
GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2 of a device are up. Configure GigabitEthernet 1/0/2 to
change its up/down state as GigabitEthernet 1/0/1.
To do...
In monitor link
group view
In Ethernet port
view or Layer-2
aggregate
interface view
In monitor link
group view
In Ethernet port
view or Layer-2
aggregate
interface view
Use the command...
system-view
monitor-link group group-id
port interface-type
interface-number uplink
port monitor-link group
group-id uplink
port interface-type
interface-number downlink
port monitor-link group
group-id downlink
1-2
Remarks
—
Required
Use either approach
Repeat this step to
add more uplink ports
Use either approach
Repeat this step to
add more downlink
ports