F3726, F3211, F3174, R5135, R3816-HP Firewalls and UTM Devices High Availability Configuration Guide-6PW100

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126BAssociating 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 change its status.
• The Positive state of the track entry shows that the link where the active interface resides works
normally, 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:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter interface view.
interface interface-type
interface-number
N/A
3. Associate the interface with a
track entry.
standby track track-entry-number Not configured by default.
NOTE:
You can associate an interface with only one track entry. If you execute the standby track command
multiple times, the last configuration takes effect.
37B
Displaying and maintaining track entries
Task Command Remarks
Display information about the
specified or all track entries.
display track { track-entry-number |
all } [ | { begin | exclude |
include } regular-expression ]
Available in any view.
38B
Track configuration examples
127BVRRP-track-NQA collaboration configuration example
In this example, the master monitors the uplink.