Associating Track with Smart Link

Smart Link cannot detect unidirectional links, misconnected fibers, or packet loss on intermediate devices or network paths of the uplink. It also cannot detect when faults are cleared. To check the link status, Smart Link ports must use link detection protocols. When a fault is detected or cleared, the link detection protocols inform Smart Link to switch over the links.

You can configure the collaboration between Smart Link and Track on a smart link group member port. Smart Link collaborates with the CC feature of CFD through the track entry to detect the link status on the port.

• When the track entry is in Positive state, the link is in normal state. Smart Link does not perform link switchover for the smart link group.

• When the track entry is in Negative state, the link has failed. Smart Link determines whether to perform link switchover according to the link preemption mode and port role configured in the smart link group.

• When the track entry is in NotReady state, the port state does not change.

For more information about Smart Link, see "Configuring Smart Link."

The track entry to be used for collaboration with Smart Link must have been associated with the CC feature of CFD.

1. Enter system view.

   system-view

2. Enter Layer 2 Ethernet interface view or Layer 2 aggregate interface view.

   interface interface-type interface-number

3. Configure collaboration between Smart Link and Track on the port.

   port smart-link group group-id track track-entry-number

   By default, the collaboration between Smart Link and Track is not configured.