3com 5500 User Manual

Page of 336
VRRP Port Tracking
193
[3Com] interface Vlan-interface 3
[3Com-Vlan-interface3] vrrp vrid 1 virtual-ip 10.100.10.1 
# Enter port view of Ethernet 1/0/1 and enable the VRRP port tracking function.
[3Com] interface Ethernet1/0/1
[3Com-Ethernet1/0/1] vrrp Vlan-interface 3 vrid 1 track reduced 50 
Complete Configuration
On the master:
#
interface Vlan-interface2
ip address 10.100.10.2 255.255.255.0
vrrp vrid 1 virtual-ip 10.100.10.1
#
interface Vlan-interface3
ip address 10.100.10.4 255.255.255.0
#
interface Ethernet1/0/1
port access vlan 2
vrrp vlan-interface 3 vrid 1 track reduced 50
#
interface Ethernet1/0/2
port access vlan 3
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.
When you set the priority decrease value of the master in a VRRP group, make 
sure that the master has a lower priority than the backups after the decrease.