Reference Guide

Virtual Router Redundancy Protocol (VRRP) | 875
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 51-2. Command Example: vrrp-group
Figure 51-3. 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.
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 51-1).
To activate a VRRP Group on an interface (so that VRRP group starts transmitting VRRP packets),
configure at least one Virtual IP address in a VRRP group. The Virtual IP address is the IP address of the
Virtual Router and does not require the IP address mask.
You can configure up to 12 Virtual IP addresses on a single VRRP Group (VRID).
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 te 1/1
FTOS(conf-if-te-1/1)#vrrp-group 111
FTOS(conf-if-te-1/1-vrid-111)#
Virtual Router ID
and VRRP Group identifier
FTOS(conf-if-te-1/1)#show conf
!
interface TengigabitEthernet 1/1
ip address 10.10.10.1/24
!
vrrp-group 111
no shutdown
FTOS(conf-if-te-1/1)#
Note that the interface
has an IP Address and is enabled