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Single VRRP Group Configuration 185
[LSW-B] interface Vlan-interface 2
[LSW-B-Vlan-interface2] ip address 202.38.160.2 255.255.255.0
[LSW-B-Vlan-interface2] quit
# Enable the VRRP group to respond to ping operations destined for its virtual IP
address.
[LSW-B] vrrp ping-enable
# Create a VRRP group.
[LSW-B] interface vlan 2
[LSW-B-Vlan-interface2] vrrp vrid 1 virtual-ip 202.38.160.111
# Configure preemptive mode for the VRRP group.
[LSW-B-Vlan-interface2] vrrp vrid 1 preempt-mode
The default gateway of Host A is configured as 202.38.160.111.
Normally, Switch A functions as the gateway. When Switch A is turned off or fails,
Switch B functions as the gateway.
Because Switch A is configured to work in the preemptive mode, when Switch A
resumes to work, it becomes the master again to function as the gateway.
Complete Configuration
■ Configurations on Switch A
#
vrrp ping-enable
#
interface Vlan-interface1
ip address 202.38.160.1 255.255.255.0
vrrp vrid 1 virtual-ip 202.38.160.111
vrrp vrid 1 priority 110
#
interface Ethernet1/0/6
port access vlan 2
#
■ Configurations on Switch B
#
vrrp ping-enable
#
interface Vlan-interface1
ip address 202.38.160.2 255.255.255.0
vrrp vrid 1 virtual-ip 202.38.160.111
#
interface Ethernet1/0/5
port access vlan 2
#
Precautions ■ The Switch 5500 supports VRRP, while the Switch 4500 does not.
■ For the IP address owner, its priority in the VRRP group is always 255.
■ Do not configure multiple VRRP groups on the same VLAN interface.
Otherwise, the VRRP function will be affected.