| Description | Each row of this table allows the tracking of one
interface of the HSRP group which is identified by the
(ifIndex, cHsrpGrpNumber) values in this table's INDEX clause.
Weight(priority) is given to each and every interface tracked.
When a tracked interface is unavailable, the HSRP priority of
the router is decreased. i.e cHsrpGrpPriority value assigned
to an HSRP group will reduce by the value assigned to
cHsrpExtIfTrackedPriority. This reduces the likelihood
of a router with a failed key interface becoming the
active router.
Setting cHsrpExtIfTrackedRowStatus to active starts
the tracking of cHsrpExtIfTracked by the HSRP group.
The value of cHsrpExtIfTrackedRowStatus may be set
to destroy at any time.
Entries may not be created via SNMP without explicitly setting
cHsrpExtIfTrackedRowStatus to either 'createAndGo'
or 'createAndWait'.
Entries can be created and modified via the management
protocol or by the device's local management interface.
If the row is not active, and a local management interface
command modifies that row, the row may transition to active
state.
A row entry in the cHsrpExtIfTrackedTable can not be created
unless the corresponding row in the cHsrpGrpTable has been
created. If that corresponding row in cHsrpGrpTable is
deleted, the interfaces it tracks also get deleted.
A row which is not in active state will timeout after a
configurable period (five minutes by default). This timeout
period can be changed by setting cHsrpConfigTimeout. |