VRRPv3 Configuration Overview
Configuring VRRP
page 22-20
OmniSwitch AOS Release 7 Network Configuration Guide
June 2013
•
Preempt mode
): To change from the default preempt mode and to turn it off, use
no
preempt
. Use
preempt
to turn it back on.For more information about the preempt mode, see
Preemption for VRRPv3 Virtual Routers” on page 22-22
.
•
Accept mode
:
The
accept
mode allows the master router to accept packets addressed to the IPv6
address owner as its own. Use the
no accept
mode to prevent the master router from accepting packets
addressed to the IPv6 address owner.
•
Advertising interval
): Measured in seconds. Use the
interval
keyword with the desired
number of centiseconds for the delay in sending VRRPv3 advertisement packets. You can change the
default interval value and set a desired value. See
“Configuring the VRRPv3 Advertisement Interval”
.
Note.
The maximum number of virtual routers supported is based on the 100 centisecond interval. A
smaller interval will result in a relatively lesser number of virtual routers.
Note.
The centisecond interval cannot be less than 10 centiseconds.
The following example creates a VRRPv3 virtual router (with VRID 7) on VLAN 2 with a priority of 75,
and no preempt. VRRPv3 advertisements will be sent at intervals of 200 centiseconds:
-> vrrp3 7 2 priority 75 no preempt interval 200
Note
. All VRRPv3 virtual routers with the same VRID on the same LAN should be configured with the
same advertisement interval; otherwise the network may produce duplicate IPv6 or MAC address
messages.
command may also be used to specify whether the VRRPv3 virtual router is enabled or
disabled. For more information about the
vrrp3
command syntax, see the
OmniSwitch CLI Reference
Guide
.
To delete a VRRPv3 virtual router, use the
no
form of the
vrrp3
command with the relevant VRID and
VLAN ID. For example:
-> no vrrp3 7 3
VRRPv3 virtual router 7 on VLAN 3 is deleted from the configuration. (The virtual router does not have
to be disabled before you delete it.)
Specifying an IPv6 Address for a VRRPv3 Virtual Router
A VRRPv3 virtual router must have a link local address. By default, the virtual router link local address is
created based on the virtual router MAC address and it does not need to be configured. Additional IPv6
addresses can be configured for a virtual router and these addresses must be within the subnet of an
address configured on the interface. To specify an IPv6 address for a VRRPv3 virtual router, use the
command and the relevant IPv6 address. For example:
-> vrrp3 6 4 address fe80::200:5eff:fe00:20a
-> vrrp3 6 4 admin-state enable