Service Manual

The following example shows how to verify a virtual IP address conguration.
NOTE: In the following example, the primary IP address and the virtual IP addresses are on the same subnet.
Dell(conf-if-gi-1/1)#show conf
!
interface GigabitEthernet 1/1
ip address 10.10.10.1/24
!
vrrp-group 111
priority 255
virtual-address
10.10.10.1
virtual-address 10.10.10.2
virtual-address 10.10.10.3
!
vrrp-group 222
no shutdown
The following example shows the same VRRP group (VRID 111) congured on multiple interfaces on dierent subnets.
Dell#show vrrp
------------------
GigabitEthernet 1/1, VRID: 111, Net: 10.10.10.1
State: Master, Priority: 255, Master: 10.10.10.1 (local)
Hold Down: 0 sec, Preempt: TRUE, AdvInt: 1 sec
Adv rcvd: 0, Bad pkts rcvd: 0, Adv sent: 1768, Gratuitous ARP sent: 5
Virtual MAC address:
00:00:5e:00:01:6f
Virtual IP address:
10.10.10.1 10.10.10.2 10.10.10.3 10.10.10.10
Authentication: (none)
------------------
GigabitEthernet 1/2, VRID: 111, Net: 10.10.2.1
State: Master, Priority: 100, Master: 10.10.2.1 (local)
Hold Down: 0 sec, Preempt: TRUE, AdvInt: 1 sec
Adv rcvd: 0, Bad pkts rcvd: 0, Adv sent: 27, Gratuitous ARP sent: 2
Virtual MAC address:
00:00:5e:00:01:6f
Virtual IP address:
10.10.2.2 10.10.2.3
Authentication:
When the VRRP process completes its initialization, the State eld contains either Master or Backup.
Setting VRRP Group (Virtual Router) Priority
Setting a virtual router priority to 255 ensures that router is the “owner” virtual router for the VRRP group. VRRP elects the
MASTER router by choosing the router with the highest priority.
The default priority for a virtual router is 100. The higher the number, the higher the priority. If the MASTER router fails, VRRP
begins the election process to choose a new MASTER router based on the next-highest priority.
If two routers in a VRRP group come up at the same time and have the same priority value, the interface’s physical IP addresses are
used as tie-breakers to decide which is MASTER. The router with the higher IP address becomes MASTER.
To congure the VRRP group’s priority, use the following command.
• Congure the priority for the VRRP group.
INTERFACE -VRID mode
priority priority
The range is from 1 to 255.
The default is 100.
Virtual Router Redundancy Protocol (VRRP)
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