Configuring Load Balancing with VRRP
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SWITCH A

CatalystA(config)# interface vlan 50
CatalystA(config-if)# ip address 192.168.1.10 255.255.255.0
CatalystA(config-if)# vrrp 1 priority 200
CatalystA(config-if)# vrrp 1 ip 192.168.1.1
CatalystA(config-if)# vrrp 2 priority 100
CatalystA(config-if)# no vrrp 2 preempt
CatalystA(config-if)# vrrp 2 ip 192.168.1.2

SWITCH B

CatalystB(config)# interface vlan 50
CatalystB(config-if)# ip address 192.168.1.11 255.255.255.0
CatalystB(config-if)# vrrp 1 priority 100
CatalystA(config-if)# no vrrp 1 preempt
CatalystB(config-if)# vrrp 1 ip 192.168.1.1
CatalystB(config-if)# vrrp 2 priority 200
CatalystB(config-if)# vrrp 2 ip 192.168.1.2

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Displaying Switch Roles for VRRP Load Balancing

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CatalystA# show vrrp brief

Interface Grp Pri Time Own Pre State Master addr Group addr

Vlan50 1 200 3218 Y Master 192.168.1.10 192.168.1.1

Vlan50 2 100 3609 Backup 192.168.1.11 192.168.1.2

CatalystA#

CatalystB# show vrrp brief

Interface Grp Pri Time Own Pre State Master addr Group addr

Vlan50 1 100 3609 Backup 192.168.1.10 192.168.1.1

Vlan50 2 200 3218 Y Master 192.168.1.11 192.168.1.2

CatalystB#

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Verifying VRRP Status for Multiple VRRP Groups

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Catalyst A

CatalystA# show vrrp

Vlan50 - Group 1

State is Master

Virtual IP address is 192.168.1.1

Virtual MAC address is 0000.5e00.0101

Advertisement interval is 1.000 sec

Preemption is enabled

min delay is 0.000 sec

Priority is 200

Authentication is enabled

Master Router is 192.168.1.10 (local),

priority is 200

Master Advertisement interval is

1.000 sec

Master Down interval is 3.218 sec

Vlan50 - Group 2

State is Backup

Virtual IP address is 192.168.1.2

Virtual MAC address is 0000.5e00.0102

Advertisement interval is 1.000 sec

Preemption is disabled

Priority is 100

Authentication is enabled

Master Router is 192.168.1.11, priority

is 200

Master Advertisement interval is

1.000 sec

Master Down interval is 3.609 sec

(expires in 2.977 sec)

CatalystA#

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Catalyst B

CatalystB# show vrrp

Vlan50 - Group 1

State is Backup

Virtual IP address is 192.168.1.1

Virtual MAC address is 0000.5e00.0101

Advertisement interval is 1.000 sec

Preemption is disabled

Priority is 100

Authentication is enabled

Master Router is 192.168.1.10, priority

is 200

Master Advertisement interval is

1.000 sec

Master Down interval is 3.609 sec

(expires in 2.833 sec)

Vlan50 - Group 2

State is Master

Virtual IP address is 192.168.1.2

Virtual MAC address is 0000.5e00.0102

Advertisement interval is 1.000 sec

Preemption is enabled

min delay is 0.000 sec

Priority is 200

Authentication is enabled

Master Router is 192.168.1.11 (local),

priority is 200

Master Advertisement interval is

1.000 sec

Master Down interval is 3.218 sec

CatalystB#

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