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Chapter 5 Avaya P460 Layer 3 Features
Avaya P460 Configuration Guide 61
00.00.5E.00.01.VRID as a response to the stations ARP requests.
• In the meantime, the redundant router will use a VRRP polling protocol to
check the Main router integrity at one second intervals (default). Otherwise, it is
idle
• If the Main router fails, the redundant router that does not receive a response
from four consecutive polling requests (default) will take over and start to
advertise the same Virtual MAC for the ARP requests. Therefore the stations
will not ‘sense’ any change neither in the configured DG nor in the MAC level
• VRRP has no provisions for routing data base synchronization among the
redundant routers. You need to perform this manually if needed.
Case #2
• One router is Main on one IP subnetwork, for example, 20.20.20.0, and
redundant on another, for example, 30.30.30.0.
• In this case each IP subnetwork must be in different VRID, for example, 1 & 2
• This detailed information is valid for each router in its Main or Redundant roles
VRRP CLI Commands
In order to... Use the following command...
Enable or disable VRRP routing
globally
router vrrp
Create or delete a virtual router on
the interface
ip vrrp
Assign or remove an IP address to
the virtual router
ip vrrp address
Set the virtual router advertisement
timer value (in seconds) for the
virtual router ID
ip vrrp timer
Set the virtual router priority value
used when selecting a master route
ip vrrp priority
Set or disable the virtual router
simple password authentication for
the virtual router ID.
ip vrrp auth-key
Configure or disable the router to
preempt a lower priority master for
the virtual router ID
ip vrrp preempt