Associating Track With Interface Backup - HP MSR Series Configuration Manual

Step
4. Associate Track with PBR.

Associating Track with interface backup

Interface backup allows interfaces on a device to back up each other, with the active interface
transmitting data and the standby interfaces staying in backup state. When the active interface or the link
where the active interface resides fails, and data cannot be transmitted, a standby interface is brought
up to transmit data, enhancing the reliability of the network.
Associate a standby interface with a track entry so that the standby interface can detect the status of the
active interface, by checking the status of the track entry and changes in its status.
The Positive state of the track entry shows that the link where the active interface resides operates
•
correctly, and the standby interfaces stay in backup state.
The Negative state of the track entry shows that the link where the active interface resides has failed,
•
and a standby interface changes to the active interface for data transmission.
• The always Invalid state of the track entry shows that the association does not take effect and each
interface keeps its original forwarding state. When the track entry turns to Invalid from other state,
a standby interface becomes the active interface.
You can associate a nonexistent track entry with an interface. The association takes effect only after you
use the track command to create the track entry. For more information, see "Configuring interface
backup."
To associate Track with interface backup:
Step
1. Enter system view.
Command
•
Set the outgoing interface, and
associate it with a track entry:
apply output-interface interface-type
interface-number [ track
track-entry-number ] [ interface-type
interface-number [ track
track-entry-number ] ]
•
Set the next hop, and associate it with a
track entry:
apply ip-address next-hop ip-address
[ track track-entry-number ] [ ip-address
[ track track-entry-number ] ]
•
Set the default outgoing interface, and
associate it with a track entry:
apply default output-interface
interface-type interface-number [ track
track-entry-number ] [ interface-type
interface-number [ track
track-entry-number ] ]
•
Set the default next hop, and associate
it with a track entry:
apply ip-address default next-hop
ip-address [ track track-entry-number]
[ ip-address [ track track-entry-number] ]
Command
system-view
31
Remarks
Use at least one of the
commands.
Remarks
N/A