Displays VRRP debug messages.
General operation
VRRP supports router redundancy through a prioritized election process among routers configured as members
of the same virtual router (VR.)
On a given VLAN, a VR includes two or more member routers configured with a VIP that is also configured as a
real IP address on one of the routers, plus a virtual router MAC address. The router that owns the IP address is
configured to operate as the owner of the VR for traffic-forwarding purposes and by default has the highest VRRP
priority in the VR. The other routers in the VR have a lower priority and are configured to operate as backups in
case the owner router becomes unavailable.
The owner normally operates as the master for a VR. But if it becomes unavailable, then a failover to a backup
router belonging to the same VR occurs, and this backup becomes the current master. If the owner recovers, a
failback occurs and "master" status reverts to the owner. (Using more than one backup provides additional
redundancy" if both the owner and the highest-priority backup fail, another, lower-priority backup can take over as
master.)
NOTE:
• The VIP used by all VRRP routers in a VR instance is a real IP address that is also configured on
the applicable VLAN interface on the VR's owner router.
• The same MAC and VIPs are included in the VRRP configuration for the owner and all backup
routers belonging to the same VR and are used as the source addresses for all traffic forwarded
by the VR.
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Aruba 3810 / 5400R Multicast and Routing Guide for ArubaOS-
Switch 16.08
