User`s guide

Configuring VRRP
9-8 Configuring VRRP
Example: Symmetrical VRRP Configuration
ThisexampleshowsthecompleteconfigurationforsymmetricalVRRPonRouters1and2:
**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)#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)#enable vlan 1 1
Matrix>Router1(config-router)#enable vlan 1 2
**Router 2**
Matrix>Router2(config)#interface vlan 1
Matrix>Router2(config-if(Vlan 1))#ip address 10.0.0.2 255.255.255.0
Matrix>Router2(config-if(Vlan 1))#no shutdown
Matrix>Router2(config)#router vrrp
Matrix>Router2(config-router)#create vlan 1 1
Matrix>Router2(config-router)#create vlan 1 2
Matrix>Router2(config-router)#address vlan 1 2 10.0.0.2 1
Matrix>Router2(config-router)#address vlan 1 1 10.0.0.1 0
Matrix>Router2(config-router)#enable vlan 1 1
Matrix>Router2(config-router)#enable vlan 1 2
Multi-Backup Configuration
Figure 9‐3showsaVRRPconfigurationwiththreeroutersandthreevirtualrouters.Eachrouter
servesasamasterforonevirtualrouterandasabackupforeachoftheothers.Whenamaster
routergoesdown,oneofthebackupstakesovertheIPaddressesofitsvirtualrouter.

InaVRRPconfigurationwheremorethanonerouterisbackingupamaster,youcanspecify
whichbackuproutertakesoverwhenthemastergoesdownbysettingthepriorityforthebackup
routers.
8. Enable VRRP on this router on VLAN 1, VRIDs
1 and 2.
enable vlan 1 1
enable vlan 1 2
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.
Procedure 9-4 Configuring Router 2 for Symmetrical VRRP (continued)
Step Task Command(s)