3Com Switch 8800 Family Configuration Guide

656 CHAPTER 53: VRRP CONFIGURATION
The following commands can be used to set correspondence between the IP
address and the MAC address.
Perform the following configuration in system view.
By default, the virtual IP address of the virtual router corresponds to the virtual
MAC address.
You should set correspondence between the virtual IP address of the virtual router
and the MAC address before configuring the virtual router. Otherwise, you cannot
configure the correspondence.
If you set correspondence between the IP address of the virtual router and the real
MAC address, you can configure only one virtual router on VLAN interface.
Adding/Deleting a
Virtual IP Address
The following command is used for assigning a virtual IP address of the local
segment to a virtual router or removing an assigned virtual IP address of a virtual
router from the virtual address list.
Perform the following configuration in VLAN interface view.
The virtual-router-ID covers the range from 1 to 255.
The virtual-address can be an unused address in the network segment where the
virtual router resides, or the IP address of an interface in the virtual router. If the IP
address is of the switch in the virtual router, it can also be configured as
virtual-address. In this case, the switch will be called an IP Address Owner. When
adding the first IP address to a virtual router, the system will create a new virtual
router accordingly. When adding a new address to this virtual router thereafter,
the system will directly add it into the virtual IP address list.
After the last virtual IP address is removed from the virtual router, the whole virtual
router will also be removed. That is, there is no more virtual router on the interface
any more and any configuration of it is invalid accordingly.
Configuring the Priority
of Switches in the
Virtual Router
The status of each switch in the virtual router will be determined by its priority in
VRRP. The switch with the highest priority will become the Master.
Perform the following configuration in VLAN interface view.
Tabl e 594 Set correspondence between virtual IP address and MAC address
Operation Command
Set correspondence between the virtual IP
address and the MAC address
vrrp method { real-mac | virtual-mac }
Set the correspondence to the default value undo vrrp method
Tabl e 595 Add/delete a virtual IP address
Operation Command
Add a virtual IP address vrrp vrid virtual-router-ID virtual-ip virtual-address
Delete a virtual IP address undo vrrp vrid virtual-router-ID [ virtual-ip virtual-address ]