92   ESR Series Routers Operation Manual 
Configuration has been successfully committed 
esr# confirm 
Configuration has been successfully confirmed 
Further port-channel configuration is performed by analogy to the common physical interface. 
7.30  VRRP configuration 
VRRP (Virtual Router Redundancy Protocol) is a network protocol designed for increased availability 
of routers, acting as a default gateway. This is performed by aggregation of a router group into a single 
virtual router and assigning a shared IP address, that will be used as a default gateway for computers in 
the network. 
Objective 1: Establish LAN virtual gateway in VLAN 50 using VRRP. IP address 192.168.1.1 is used as 
a local virtual gateway.  
 
Fig. 7.32—Network structure 
Solution: 
First, do the following: 
  Create the respective sub-interface 
  Configure zone for sub-interface 
  Specify IP address for sub-interface 
Main configuration step:  
Configure R1 router. 
Configure VRRP in the created sub-interface. Specify unique VRRP identifier: 
R1(config)#interface gi 1/0/5.50 
R1(config-subif)# vrrp id 10 
Specify virtual gateway IP address 192.168.1.1/24: 
R1(config-subif)# vrrp ip 192.168.1.1 
Enable VRRP: 
R1(config-subif)# vrrp 
R1(config-subif)# exit 
Configuration changes will take effect when the configuration is applied: 
R1# commit