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• Preemption – Shows if this router is allowed to preempt the acting
master.
• Priority – Priority of this router in the VRRP group.
• AuthType – Authentication mode used to verify VRRP packets from
other routers.
Command Attributes (VRRP Group Configuration Detail)
• Associated IP Table – IP interfaces associated with this virtual router
group.
• Associated IP – IP address of the virtual router, or secondary IP
addresses assigned to the current VLAN interface that are supported by
this VRRP group. If this address matches a real interface on this switch,
then this interface will become the virtual master router for this VRRP
group.
• Advertisement Interval – Interval at which the master virtual router
sends advertisements communicating its state as the master.
(Range: 1-255 seconds; Default: 1 second)
- VRRP advertisements from the current master virtual router include
information about its priority and current state as the master.
- VRRP advertisements are sent to the multicast address 224.0.0.8.
Using a multicast address reduces the amount of traffic that has to be
processed by network devices that are not part of the designated
VRRP group.
- If the master router stops sending advertisements, backup routers will
bid to become the master router based on priority. The dead interval
before attempting to take over as the master is three times the hello
interval plus half a second.
• Preempt Mode – Allows a backup router to take over as the master
virtual router if it has a higher priority than the acting master virtual
router (i.e., another backup router that has taken over from the VRRP
group address owner.) (Default: Enabled)
• Preempt Delay – Time to wait before issuing a claim to become the
master. (Range: 0-120 seconds; 0 seconds)