H3C Technologies H3C MSR 50 - Manual (Page 39)

31
Step Command Remarks
47. Associate Track with PBR.
• 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] ]
Use at least one of the
commands.
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 Command Remarks
48. Enter system view. system-view N/A