User`s guide

Modifying a Configuration
9-14 Configuring VRRP
**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)#create vlan 1 3
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)#address vlan 1 3 10.0.0.3 0
Matrix>Router2(config-router)#priority vlan 1 1 200
Matrix>Router2(config-router)#priority vlan 1 3 100
Matrix>Router2(config-router)#enable vlan 1 1
Matrix>Router2(config-router)#enable vlan 1 2
Matrix>Router2(config-router)#enable vlan 1 3
**Router 3**
Matrix>Router3(config)#interface vlan 1
Matrix>Router3(config-if(Vlan 1))#ip address 10.0.0.3 255.255.255.0
Matrix>Router3(config-if(Vlan 1))#no shutdown
Matrix>Router3(config)#router vrrp
Matrix>Router3(config-router)#create vlan 1 1
Matrix>Router3(config-router)#create vlan 1 2
Matrix>Router3(config-router)#create vlan 1 3
Matrix>Router3(config-router)#address vlan 1 3 10.0.0.3 1
Matrix>Router3(config-router)#address vlan 1 1 10.0.0.1 0
Matrix>Router3(config-router)#address vlan 1 2 10.0.0.2 0
Matrix>Router3(config-router)#priority vlan 1 1 100
Matrix>Router3(config-router)#priority vlan 1 2 100
Matrix>Router3(config-router)#enable vlan 1 1
Matrix>Router3(config-router)#enable vlan 1 2
Matrix>Router3(config-router)#enable vlan 1 3
Modifying a Configuration
Thissectiondescribesoptionalsettingsandsettings youcanmodifyinaVRRP configuration,
includingbackuppriority,advertisementinterval,criticalIPaddress,pre‐emptmode,and
authenticationkey.
Setting the Backup Priority
Asdescribedin“Multi‐BackupConfiguration”onpage 9‐8,youcanspecifywhichbackuprouter
takesoverwhenthemasterroutergoesdownbysettingthepriorityforthebackuprouters.
Usethefollowingcommandinrouterconfigurationmodetosetthepriorityforabackuprouter:
priority vlan vlan-id vrid priority-value
Thepriorityvaluecanbebetween1(lowest)and254.Thedefaultis100.ThepriorityfortheIP
addressowneris255andcannotbechanged.Priorityvalueof255isreservedfortheVRRProuter
thatownstheIPaddressassociatedwiththevirtualrouter.Priority0isreserved
forsignalingthat
themasterhasstoppedworkingand thebackuproutermusttransitiontomasterstate.