VRRP Port Tracking 191

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

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 Port Tracking 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.

Network Diagram Figure 52 Network diagram for VRRP port tracking

Network

Actual IP address

Actual IP address

Vlan-int2

Vlan-int3

10.100.10.2/24

10 .100.10.4 /24

Master

Backup

Virtual IP address

Virtual IP address

10.100.10.1 /24

10.100.10.1/24

Layer 2 Switch

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3Com 4200G, 5500G, 4210 manual Network Diagram Network diagram for Vrrp port tracking