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Nokia Network Voyager for IPSO 4.0 Reference Guide 283
configured.
The default is 100 centiseconds, that is, 1 second.
5. (Optional) Click Disabled next to Preempt Mode if you do not want virtual router with a
higher priority to preempt the current master router and become the new master. The default
is Enabled, which means that a virtual router with a higher priority than the current master
preempts the master and becomes the new master router.
6. (Optional) Click Enabled next to Accept Mode if you want to a virtual router in a master
state to accept and respond to IP packets sent to virtual IPv6 addresses. The VRRP protocol
specifies not to accept or respond to such IP packets, so the default is Disabled.
7. Enter an IPv6 address for this virtual router in the Backup Address text box. The IPv6
address associated with a monitored circuit virtual router must not match the actual IPv6
address of any host or outer on the network of the interface. The first back-up address you
configure must be a link-local address. Any link-local address must belong to the fe80::/64
subnet, and global addresses must belong to the subnet of the interface.
8. (Optional) If the router you are backing up has more than one IP address, repeat step 10.
9. (Optional) Click Enabled in the Auto-deactivation field to set the minimum value for the
effective priority of the virtual router to zero (0). The default is Disabled, which sets the
lowest value for the effective priority of the virtual router to one (1). A VRRP virtual router
with an effective priority of 0 does not become the master even if there are not other VRRP
routers with a higher priority for this virtual router.
Click Apply.
10. (Optional) To configure a virtual MAC (VMAC) address for the virtual router, see “Setting a
Virtual MAC Address for a Virtual Router.”
11. Click Apply, and then click Save to make your changes permanent.
Setting Interface Dependencies for a Monitored Circuit Virtual
Router for IPv6
The Monitored Circuit feature lets you select one or more interfaces with which to associate
dependencies. The up and down status of each interface is monitored, and the election of the
VRRP master dynamically adapts to the current state of each interface selected for dependency.
Follow this procedure after you create a monitored circuit virtual router. For more information,
see “Creating a Virtual Router in Monitored Circuit Mode for IPv6.”
1. Click VRRP for IPv6 under Configuration > System Configuration > IPv6
Configuration > Router Services in the tree view.
2. Click the Monitor Interface drop-down list for the specific virtual router entry and select the
interface you want to monitor.
3. In the Priority Delta text box, enter a value of from 1 to 254 to specify the priority delta
associated with the interface you selected. When an interface goes down, the priority delta
value for the that interface is subtracted from the base priority value of the virtual router,