Conguration examples
The following sections contain the CLI commands for implementing VRRP and VRRP-E congurations.
VRRP example
To implement the VRRP conguration shown in "VRRP Overview," use the following method.
Conguring Switch 1
To
congure VRRP Switch 1, enter the following commands.
Switch1(config)# router vrrp
Switch1(config)# interface ethernet 1/1/6
Switch1(config-if-1/1/6)# ip address 192.53.5.1
Switch1(config-if-1/1/6)# ip vrrp vrid 1
Switch1(config-if-1/1/6-vrid-1)# owner track-priority 20
Switch1(config-if-1/1/6-vrid-1)# track-port ethernet 1/2/4
Switch1(config-if-1/1/6-vrid-1)# ip-address 192.53.5.1
Switch1(config-if-1/1/6-vrid-1)# activate
NOTE
When you congure the Master (Owner), the address you enter with the ip-address command must already be congured on
the interface.
Conguring Switch 2
To
congure Switch 2 in "VRRP Overview" after enabling VRRP, enter the following commands.
Switch2(config)#router vrrp
Switch2(config)#interface ethernet 1/1/5
Switch2(config-if-1/1/5)#ip address 192.53.5.3
Switch2(config-if-1/1/5)#ip vrrp vrid 1
Switch2(config-if-1/1/5-vrid-1)#backup priority 100 track-priority 19
Switch2(config-if-1/1/5-vrid-1)#track-port ethernet 1/3/2
Switch2(config-if-1/1/5-vrid-1)#ip-address 192.53.5.1
Switch2(config-if-1/1/5-vrid-1)#activate
The backup command
species that this router is a VRRP Backup for virtual router VRID1. The IP address entered with the ip-address
command is the same IP address as the one entered when conguring Switch 1. In this case, the IP address cannot also exist on Switch
2, but the interface on which you are conguring the VRID Backup must have an IP address in the same subnet. By entering the same IP
address as the one associated with this VRID on the Owner, you are conguring the Backup to back up the address, but you are not
duplicating the address.
NOTE
When you congure a Backup router, the router interface on which you are conguring the VRID must have a real IP address
that is in the same subnet as the address associated with the VRID by the Owner. However, the address cannot be the same.
The priority parameter establishes the router VRRP priority in relation to the other VRRP routers in this virtual router. The track-priority
parameter species the new VRRP priority that the router receives for this VRID if the interface goes down.
The activate command activates the VRID conguration on this interface. The interface does not provide backup service for the virtual IP
address until you activate the VRRP conguration. Alternatively, you can use the enable command. The activate and enable commands
do the same thing.
Syntax: router vrrp
Conguration examples
FastIron Ethernet Switch Layer 3 Routing
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