H3C Technologies H3C S10500 Series Switches - Manual (Page 146)

137
Creating a VRRP group and configuring a virtual IPv6 address
When creating a VRRP group, configure a virtual IPv6 address for the VRRP group. You can configure
multiple virtual IPv6 addresses for a VRRP group.
A VRRP group is automatically created when you specify the first virtual IPv6 address for the VRRP group.
If you specify another virtual IPv6 address for the VRRP group later, the virtual IPv6 address is added to
the virtual IPv6 address list of the VRRP group.
NOTE:
Do not create VRRP groups on the VLAN interface of a super VLAN. Otherwise, network performance
might be affected.
Configuration prerequisites
Before creating a VRRP group and configuring a virtual IPv6 address on an interface, configure an IPv6
address for the interface and ensure that it is in the same network segment as the virtual IPv6 address to
be configured.
Configuration procedure
Follow these steps to create a VRRP group and configure its virtual IPv6 address:
To do… Use the command… Remarks
Enter system view system-view —
Enter the specified interface view
interface interface-type
interface-number
—
Create a VRRP group and
configure its virtual IPv6
address, which is a link local
address
vrrp ipv6 vrid virtual-router-id
virtual-ip virtual-address link-local
Required
No VRRP group is created by
default.
The first virtual IPv6 address of the
VRRP group must be a link local
address. Only one link local
address is allowed in a VRRP group,
and must be removed the last.
Configure the VRRP group with a
virtual IPv6 address, which is a
global unicast address
vrrp ipv6 vrid virtual-router-id
virtual-ip virtual-address
Optional
By default, no global unicast
address is configured as the virtual
IPv6 address of a VRRP group.
NOTE:
•
When a router is the IP address owner in a VRRP group, H3C recommends you not to use the IPv6
address of the interface (virtual IPv6 address of the VRRP group) to establish an OSPFv3 neighbor
relationship with the adjacent router, that is, not to use the ospfv3 area command to enable OSPFv3 on
the interface. For more information about ospfv3 area command, see Layer 3—IP Routing Command
Reference.
• A VRRP group is removed after you remove all the virtual IPv6 addresses in it. In addition, configurations
on that VRRP group do not take effect any longer.
• Removal of the VRRP group on the IP address owner causes IP address collision. To resolve the collision,
change the IPv6 address of the interface on the IP address owner first and then remove the VRRP group
from the interface.