Technical data

BLADE OS 5.0 Command Reference
BMD00142, November 2009 Chapter 4: The Information Menu
 99
/info/l3/vrrp
VRRP Information
Virtual Router Redundancy Protocol (VRRP) support on the G8124 provides redundancy between
routers in a LAN. This is accomplished by configuring the same virtual router IP address and ID
number on each participating VRRP-capable routing device. One of the virtual routers is then elected
as the master, based on a number of priority criteria, and assumes control of the shared virtual router
IP address. If the master fails, one of the backup virtual routers will assume routing authority and
take control of the virtual router IP address.
When virtual routers are configured, you can view the status of each virtual router using this
command. VRRP information includes:
 Virtual router number
 Virtual router ID and IP address
 Interface number
 Ownership status
 owner identifies the preferred master virtual router. A virtual router is the owner when the
IP address of the virtual router and its IP interface are the same.
 renter identifies virtual routers which are not owned by this device.
 Priority value. During the election process, the virtual router with the highest priority becomes
master.
 Activity status
 master identifies the elected master virtual router.
 backup identifies that the virtual router is in backup mode.
 init identifies that the virtual router is waiting for a startup event.
For example, once it receives a startup event, it transitions to master if its priority is 255,
(the IP address owner), or transitions to backup if it is not the IP address owner.
VRRP information:
1: vrid 2, 205.178.18.210, if 1, renter, prio 100, master
2: vrid 1, 205.178.18.202, if 1, renter, prio 100, backup
3: vrid 3, 205.178.18.204, if 1, renter, prio 100, master