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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)
• Priority – The priority of this router in a VRRP group. (Range: 1-254;
Default: 100)