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Associating track with interface backup – H3C Technologies H3C MSR 50 User Manual

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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

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