3Com S7902E, Руководство по настройке

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To do… Use the command… Remarks
Create a VRRP group and
configure its virtual IPv6
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.
z
When VRRP works in the load balancing mode, the virtual IPv6 address cannot be the same with
IPv6 address of any interface in the VRRP group, that is, in the load balancing mode, the VRRP
group does not have an IP address owner.
z
For the S7900E series, the maximum number of IPv6 VRRP groups on a switch is 128, and the
maximum number of virtual IPv6 addresses for a VRRP group is 16.
z
A VRRP group is removed after you remove all the virtual IPv6 addresses in it. In addition,
configurations on that VRRP group no longer take effect.
z
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 IPv6 address of the interface on the IP address owner to
resolve the collision.
Configuring Router Priority, Preemptive Mode and Tracking Function
Configuration prerequisites
Before configuring these features, you should first create a VRRP group and configure a virtual IPv6
address.
Configuration procedure
By configuring router priority, preemptive mode, interface tracking, or a Track object, you can decide
which router in the VRRP group serves as the Master.
Follow these steps to configure router priority, preemptive mode and interface tracking:
To do… Use the command… Remarks
Enter system view system-view —
Enter the specified interface
view interface interface-type
interface-number
—
Configure the priority of the
router in the VRRP group vrrp ipv6 vrid virtual-router-id
priority
priority-value
Optional
100 by default
Configure the router in the
VRRP group to work in
preemptive mode and
configure preemption delay of
the VRRP group
vrrp ipv6 vrid virtual-router-id
preempt-mode [ timer delay
delay-value ]
Optional
The router in the VRRP group
works in preemptive mode and
the preemption delay is zero
seconds by default.