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374 Nokia Network Voyager for IPSO 4.0 Reference Guide
4. (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 dense-
mode PIM. Do not use VRRPv2 when configuring virtual IP support for dense-mode
PIM.
5. Click Apply.
6. (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.
Note
You cannot configure a local address or a virtual address when IP clustering is enabled.
Note
If neighboring routers choose advertisement addresses that do not appear to be on a
shared subnet, 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.
7. (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. The default is 1, and the range is 0 to 4294967295
(2^32 - 1).
Note
Although you can configure this option, PIM-DM does not use DR Election Priority. On a
LAN with more than one router, data forwarding is implemented on the basis of PIM
Assert messages. The router with the lowest cost (based on unicast routing) to reach
the source of data traffic is elected as the router that forwards traffic. In the case of a tie,
the router with the highest IP address is elected to forward traffic.
8. Click Apply, and then click Save to make your change permanent.
Disabling PIM
You can disable PIM on one or more interfaces you configured on each Nokia platform.
1. Click PIM under Configuration > Routing Configuration in the tree view.
2. In the Interfaces section, click Off for each interface on which to disable PIM. To disable
PIM entirely, click Off next to each interface that is currently running PIM.