User`s guide

Configuring VRRP
Matrix DFE Series and N-SA User’s Guide 9-13
Table 9‐4showstheprioritiesforeachvirtualrouterconfiguredonRouterR3.
Example: Multi-Backup VRRP Configuration
Thisexampleshowsthecompleteconfigurationformulti‐backupVRRPonRouters1,2and3:
**Router 1**
Matrix>Router1(config)#interface vlan 1
Matrix>Router1(config-if(Vlan 1))#ip address 10.0.0.1 255.255.255.0
Matrix>Router1(config-if(Vlan 1))#no shutdown
Matrix>Router1(config)#router vrrp
Matrix>Router1(config-router)#create vlan 1 1
Matrix>Router1(config-router)#create vlan 1 2
Matrix>Router1(config-router)#create vlan 1 3
Matrix>Router1(config-router)#address vlan 1 1 10.0.0.1 1
Matrix>Router1(config-router)#address vlan 1 2 10.0.0.2 0
Matrix>Router1(config-router)#address vlan 1 3 10.0.0.3 0
Matrix>Router1(config-router)#priority vlan 1 2 200
Matrix>Router1(config-router)#priority vlan 1 3 200
Matrix>Router1(config-router)#enable vlan 1 1
Matrix>Router1(config-router)#enable vlan 1 2
Matrix>Router1(config-router)#enable vlan 1 3
10. Set a priority of 100 for this router on VRIDs 1
and 2, making it a secondary backup.
Note: This command is shown for
illustration purposes only since 100 is
the default priority value and doesn’t
have to be set.
priority vlan 1 1 100
priority vlan 1 2 100
11. Enable VRRP on this router on VLAN 1, VRIDs
1, 2, and 3.
enable vlan 1 1
enable vlan 1 2
enable vlan 1 3
Note: Before enabling VRRP on this router you must set the other options described in
this section. Once enabled, you cannot make any configuration changes to VRRP on this
router without first disabling VRRP using the no enable vlan command.
Table 9-4 Priorities for Virtual Routers Configured on Router 3
Virtual Router
Configured
Priority
Default
Priority
Comments
VRID 1 on IP address
10.0.0.1/16
100 100 Leaving priority at 100 makes Router R3
secondary backup for VRIDs 1 and 2.
VRID 2 on IP address
10.0.0.2/16
100 100
VRID 3 on IP address
10.0.0.3/16
255 255 Since Router R3 is the owner of the IP address
associated with VRID 3, the default priority of 255
(highest) does not need to be reconfigured to
make this router the VRID 3 master.
Procedure 9-7 Configuring Router 3 for Multi-Backup VRRP (continued)
Step Task Command(s)