Configuring Monitor Link; Creating A Monitor Link Group; Configuring Monitor Link Group Member Interfaces - HP 5900 Series Configuration Manual

A monitor link group works independently of other monitor link groups. When a monitor link group does
not contain any uplink interface or all its uplink interfaces are down, the monitor link group goes down.
It forces all downlink interfaces down at the same time. When any uplink interface comes up, the monitor
link group comes up and brings up all the downlink interfaces.

Configuring Monitor Link

Follow these restrictions and guidelines when you configure Monitor Link:
Do not manually shut down or bring up the downlink interfaces in a monitor link group.
•
To avoid frequent state changes of downlink interfaces in the event that uplink interfaces flap, you
•
can configure a switchover delay. The switchover delay is the time that the downlink interfaces wait
before they change the state following the uplink interfaces.

Creating a monitor link group

Step
1. Enter system view.
2. Create a monitor link group
and enter monitor link group
view.

Configuring monitor link group member interfaces

You can configure member interfaces for a monitor link group in monitor link group view or interface
view. Configurations made in these views have the same effect. The configuration is supported by the
following interfaces:
Layer 2 Ethernet interfaces and Layer 2 aggregate interfaces
•
• Layer 3 Ethernet interfaces/subinterfaces and Layer 3 aggregate interfaces/subinterfaces
Member ports of Layer 2 aggregation groups and Layer 3 aggregation groups.
•
S-channel interfaces and S-channel aggregate interfaces
•
Follow these guidelines when you configure monitor link group member interfaces:
If you have configured an interface as the downlink interface of a monitor link group, do not
•
configure its subinterfaces as the uplink interfaces of any monitor link group. Otherwise, the
Monitor Link operation might be interrupted.
Do not add an aggregate interface and its member ports to the same monitor link group. Otherwise,
•
the Monitor Link operation might be interrupted.
The state of subinterfaces is associated with the state of the interface. Do not assign the interface
•
and its subinterfaces to the same monitor link group. Otherwise, the monitor link group
performance might be affected.
An interface can be assigned to only one monitor link group.
•
To avoid undesired down/up state changes on the downlink interfaces, configure uplink interfaces
•
before you configure downlink interfaces.
Command
system-view
monitor-link group group-id
63
Remarks
N/A
By default, no monitor link
group is created.