Configuring Router Priority, Preemptive Mode And Tracking Function - HP 4800G Series Configuration Manual

Hide thumbs

Table of Contents

Configuration prerequisites

Before creating a VRRP group and configuring a virtual IP address on an interface, you should first

configure an IP address for the interface and ensure that the virtual IP address to be configured is in the

same network segment as the IP address of the interface.

Configuration procedure

Follow these steps to create VRRP group and configure virtual IP address:

Enter system view

Enter the specified interface view

Create VRRP group and

configure virtual IP address of the

For the 3Com switches 4800G, the maximum number of VRRP groups on a switch is 32; and the

maximum number of virtual IP addresses for a VRRP group is 5.

A VRRP group is removed after you remove all the virtual IP addresses in it. In addition,

configurations on that VRRP group no longer take effect.

The virtual IP address of the virtual router can be either an unused IP address on the segment

where the VRRP group resides or the IP address of an interface on a router in the VRRP group. In

the latter case, the router is called the IP address owner.

Removal of the VRRP group on the IP address owner will cause IP address collision. In such a

case, it is recommended to modify the IP address of the interface on the IP address owner to

resolve the collision.

The virtual IP address of the VRRP group cannot be 0.0.0.0, 255.255.255.255, loopback

addresses, non class A/B/C addresses or other illegal IP addresses such as 0.0.0.1.

Only when the configured virtual IP address and the interface IP address belong to the same

segment and are legal host addresses can the VRRP group operate normally. If the configured

virtual IP address and the interface IP address do not belong to the same network segment, or the

configured IP address is the network address or network broadcast address of the network

segment that the interface IP address belongs to, the state of the VRRP group is always initialize

though you can perform the configuration successfully, that is, VRRP does not take effect in this