User`s guide
Configuring VRRP
9-12 Configuring VRRP
Table 9‐3showstheprioritiesforeachvirtualrouterconfiguredonRouterR2.
Router R3 Configuration
UsethefollowingproceduretoconfigureRouterR3asshownbackinFigure 9‐3:
Table 9-3 Priorities for Virtual Routers Configured on Router 2
Virtual Router
Configured
Priority
Default
Priority
Comments
VRID 1 on IP address
10.0.0.1/16
200 100 Changing Router R2’s priority from 100 to 200
makes this virtual router primary backup for VRID
1. Since this number is higher than Router R3’s
priority for VRID 1, R3 is the secondary backup.
VRID 2 on IP address
10.0.0.2/16
255 255 Since Router R2 is the owner of the IP address
associated with VRID 2, the default priority of 255
(highest) does not need to be reconfigured to
make this router the VRID 2 master.
VRID 3 on IP address
10.0.0.3/16
100 100 Leaving priority at 100 (lower than R1’s) makes
Router R2 secondary backup and R1 primary
backup for VRID 3.
Procedure 9-7 Configuring Router 3 for Multi-Backup VRRP
Step Task Command(s)
1. In Global Configuration mode:
Create a routing interface for Router 3 on
VLAN 1.
interface vlan 1
2. In Interface Configuration mode:
Set and enable IP address 10.0.0.3
255.255.255.0 on this router an VLAN.
ip address 10.0.0.3 255.255.255.0
no shutdown
3. In Global Configuration mode:
Enable VRRP configuration mode on this router.
router vrrp
4. In VRRP Configuration mode:
Create a VRRP session for this router on
VLAN 1 with a VRID of 1.
create vlan 1 1
5. Create a second VRRP session with a VRID of
2.
create vlan 1 2
6. Create a third VRRP session with a VRID of 3. create vlan 1 3
7. Set a virtual router address as VLAN 1, VRID 3,
interface10.0.0.3, and set this router as master
(owner value 1).
address vlan 1 3 10.0.0.3 1
8. Set a virtual router address as VLAN 1, VRID 1,
interface10.0.0.1, and set this router as backup
(owner value 0).
address vlan 1 1 10.0.0.1 0
9. Set a virtual router address as VLAN 1, VRID 2,
interface10.0.0.2, and set this router as backup
(owner value 0).
address vlan 1 2 10.0.0.2 0