3com 5500 User Manual

port access vlan 2

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Configurations on Switch B

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vrrp ping-enable

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interface Vlan-interface2

ip address 202.38.160.2 255.255.255.0

vrrp vrid 1 virtual-ip 202.38.160.111

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interface Ethernet1/0/5

port access vlan 2

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The Switch 5500 supports VRRP, while the Switch 4500 does not.

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For the IP address owner, its priority in the VRRP group is always 255.

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When configuring VRRP interface tracking, you are recommended to configure 
the uplink Trunk port to deny the VLAN that corresponds to the tracked 
interface.

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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.

VRRP group port tracking function can track the link state of a physical port, and 
decrease the priority of the switch when the physical port fails.

With this function enabled for a VRRP group, if the tracked physical port of the 
master fails, the priority of the master decreases by the specified value 
automatically, making a new election of the master in the group.

Figure 52   Network diagram for VRRP port tracking

 

Vlan -int2

10 .100 .10.2/24

Master

Network

Layer 2 Switch

Backup

Actual IP address 

Actual IP address 

Virtual IP address 

10.100.10.1/24

Vlan -int3
10 .100 .10.4 /24

Virtual IP address 

10 .100 .10 .1 /24