Reference Guide

Virtual Router Redundancy Protocol (VRRP) | 883
Create a Virtual Router
To enable VRRP, you must create a Virtual Router. In FTOS, a VRRP Group is identified by the Virtual
Router Identifier (VRID).
To enable a Virtual Router, use the following command in the INTERFACE mode. To delete a VRRP
group, use the
no vrrp-group vrid command in the INTERFACE mode.
Figure 47-2. Command Example: vrrp-group
Figure 47-3. Command Example Display: show config for the Interface
Assign Virtual IP addresses
Virtual routers contain virtual IP addresses configured for that VRRP Group (VRID). A VRRP group does
not transmit VRRP packets until you assign the Virtual IP address to the VRRP group.
E-Series supports an unlimited total number of VRRP Groups on the router while supporting up to 255
VRRP groups on a single interface (Table 47-1).
C-Series supports a total of 128 VRRP groups on the switch with varying number of maximum VRRP
groups per interface (Table 47-1).
S-Series supports a total of 120 VRRP groups on a switch with FTOS or a total of 20 VRRP groups when
using SFTOS. The S-Series supports varying number of maximum VRRP groups per interface
(Table 47-1).
Task Command Syntax Command Mode
Create a virtual router for that interface
with a VRID.
vrrp-group vrid
VRID Range: 1-255
INTERFACE
Note: The interface must already have a Primary IP Address defined, and
be enabled.
FTOS(conf)#int gi 1/1
FTOS(conf-if-gi-1/1)#vrrp-group 111
FTOS(conf-if-gi-1/1-vrid-111)#
Virtual Router ID
and VRRP Group identifier
FTOS(conf-if-gi-1/1)#show conf
!
interface GigabitEthernet 1/1
ip address 10.10.10.1/24
!
vrrp-group 111
no shutdown
FTOS(conf-if-gi-1/1)#
Note that the interface
has an IP Address and is enabled