HP 3500YL - Manual (Page 359)

Virtual Router Redundancy Protocol (VRRP)
Dynamically Changing the Priority of the VR
Syntax: no track
The command allows you to remove tracking for all config­
ured track entities (ports, trunks, and VLANs). The command
is executed in VRID instance context.
For example:
ProCurve(vlan-25-vrid-1)# no track
Failover Operation
Failover operation involves handing off of the VR’s control of the virtual IP to
another VR. Once a failover command is issued, the VR begins sending
advertisements with priority zero instead of the configured priority. When the
VR detects a peer VR taking control, it releases control of the virtual IP and
ceases VR operation until a failback is executed. Failover only occurs on a
Backup VR operating as Master.
If you specify the with-monitoring option, the VR continues to monitor the
virtual IP after ceasing VR operation. If the Master VR goes down, it then re­
takes control of the virtual IP.
Syntax: failover [with-monitoring]
Allows you to force the Backup VR operating as Master to
relinquish ownership of the VR instance. The command is
executed in VRID instance context.
Failback Operation
The failback command forces the Backup VR to take ownership of the VR
instance. Failback is disabled on the Owner VR; it can only be executed on
the Backup VR. Failback can only occur on a VR on which
failover or failover
with-monitoring has been executed.
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