H3C Technologies H3C SecPath F1000-E - Manual (Page 293)

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link where the main interface resides fails, and data cannot be transmitted, the interface backup brings
up a backup interface to transmit data, thus enhancing the reliability of the network.
Associate a backup interface with a track entry so that the backup interface can detect the status of the
main interface based on that of the track entry and change its backup status accordingly.
• If the status of the track entry is Positive, then the link where the main interface resides works
normally, and the backup interfaces stay in the backup state.
• If the status of the track entry is Negative, then the link where the main interface resides failed, and
a backup interface will turn to the main interface to take on data transmission.
• During the configuration, if the track entry is in the Invalid state, it indicates that the track entry
association has not taken effect yet; each interface keeps its original forwarding state. After the
configuration, if the status of the track entry turns to Invalid, a backup interface becomes the main
interface.
Follow these steps to configure the track-interface backup collaboration:
To do… Use the command… Remarks
Enter system view system-view —
Enter interface view
interface interface-type
interface-number
—
Configure the association between
the interface and the track entry standby track
track-entry-number
Required
Not configured by default.
NOTE:
•
You can associate an interface with only one track entry. If you execute the standby track command
repeatedly, the latter configuration overwrites the former.
• The track entry to be associated with the interface can be a nonexistent one. After you use the track
command to create the track entry, the association takes effect.
Displaying and Maintaining Track Entries
To do… Use the command… Remarks
Display information about the
specified track entry or all track
entries
display track
{ track-entry-number | all }
Available in any view