3Com MSR 50 Network Router User Manual


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the main interface, you cannot configure the standby track command on both
the main interface and its backup interface; if you have associated an interface
with a Track object, you cannot configure the interface as the main interface or a
backup interface.
Related commands: standby track.
Example # Specify interface Serial 2/1 to back up interface Serial 2/0, and assign it the
priority of 50.
<Sysname> system-view
[Sysname] interface serial 2/0
[Sysname-Serial2/0] standby interface serial 2/1 50
standby threshold
Syntax standby threshold enable-threshold disable-threshold
undo standby threshold
View Interface view
Parameter enable-threshold: Specifies upper value of the load sharing threshold. It indicates
the percentage of the available main-interface bandwidth that the traffic load
must exceed for the backup interface to come up for load sharing. It ranges from
1 to 99.
disable-threshold: Specifies lower value of the load sharing threshold. It indicates
the percentage of the available main-interface bandwidth that the traffic load
must be less than for the backup interface in load sharing to shut down. It ranges
from 1 to 99. The disable-threshold must be smaller than the enable-threshold.
Description Use the
standby threshold command to configure load sharing thresholds.
Use the
undo standby threshold command to remove the configuration.
By default, load sharing threshold is disabled.
The following is how backup/load sharing works:
When the traffic on the main interface increases above the enable-threshold,
the backup center brings up the highest-priority backup interface, and then
other backup interfaces in decreasing priority order depending on traffic size.
When the traffic on the main interface decreases below the disable-threshold,
the backup center shuts down the lowest-priority backup interface first and
then other participant backup interfaces in increasing priority order depending
on traffic size.
Note that: