H3C Technologies H3C S12500 Series Switches - Manual (Page 160)

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• 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.
Configuration procedure
To create a VRRP group and configure its virtual IPv6 address:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter the specified interface
view.
interface interface-type
interface-number
N/A
3. 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
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.
4. 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.
Configuring router priority, preemptive mode and tracking
function
Configuration prerequisites
Before you configure router priority, preemptive mode and tracking function, create a VRRP group and
configure its virtual IPv6 address.
Configuration guidelines
When you configure router priority, preemptive mode and interface tracking, follow these guidelines:
• The running priority of an IP address owner is always 255 and you do not need to configure it. An
IP address owner always operates in preemptive mode.
• Interface tracking is not configurable on an IP address owner.
• If you configure an interface to be tracked or a track entry to be monitored on a router that is the IP
address owner in a VRRP group, the configuration does not take effect. If the router is not the IP
address owner in the VRRP group later, the configuration takes effect.
• The tracked interface can be a Layer 3 Ethernet interface, a VLAN interfaces, or a Layer 3
aggregate interface.
• If the state of a tracked interface changes from down or removed to up, the priority of the router that
owns the interface is automatically restored.