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Nokia Network Voyager for IPSO 4.0 Reference Guide 377
6. (Optional) To configure this interface to use the VRRP virtual IP address, in the Virtual
address field, click On.
Note
You must use Monitored Circuit mode when configuring virtual IP support for sparse-
mode PIM. Do not use VRRPv2 when configuring virtual IP support for sparse-mode
PIM.
7. Click Apply.
8. (Optional) For each interface that is running PIM, enter the specified local address in the
Local Address text box. PIM uses this address to send advertisements on the interface. This
option is useful only when multiple addresses are configured on the interface.
Note
If neighboring routers choose advertisement addresses that do not appear to be on a
shared subnet, then all messages from the neighbor are rejected. A PIM router on a
shared LAN must have at least one interface address with a subnet prefix that all
neighboring PIM routers share.
9. (Optional) For each interface that is running PIM, enter a new designated router priority in
the DR Election Priority text box. The router with the highest priority and the highest IP
address is elected as the designated router. To break a tie, the designated router with the
highest IP address is chosen. If even one router does not advertise a DR election priority
value in its hello messages, DR election is based on the IP addresses. The default is 1, and
the range is 0 to 4294967295 (2^32 - 1).
Note
To verify whether a PIM neighbor supports DR Election Priority, use the following
command, which you can executed from iclid and CLI:
show pim neighbor <ip_address>
For neighbors that advertise a DR election priority value, the following message appears
in the summary:
DRPriorityCapable Yes
.
10. Click Apply.
11. To make your changes permanent, click Save.
Configuring High-Availability Mode
Enable the high-availability (HA) mode when two routers are configured to back each other up
to forward multicast traffic and sparse-mode PIM is implemented. When this option is enabled,
all PIM-enabled interfaces are available only if each interface is up and has a valid address
assigned. If any PIM-enabled interface goes down or if all of its valid addresses are deleted, then