Multicast query

From: Gadad, Milind (m-gadad1@ti.com)
Date: Sat Jul 21 2007 - 16:00:00 ART


I am running ip pim spare-mode on all the routers in the lab, the
following is the config on RP router. On the other router in the lab
when I run "sh ip pim rp mapping", I don't find any mapping.

R1 (RP)

ip pim rp-address 200.0.0.1

ip pim autorp listener

ip pim send-rp-announce Loopback0 scope 16 group-list 1

ip pim send-rp-discovery Loopback1 scope 16

access-list 1 permit 234.55.55.11

access-list 1 permit 234.55.55.12

access-list 1 permit 234.55.55.13

r1#sh ip pim rp mapping

PIM Group-to-RP Mappings

This system is an RP (Auto-RP)

This system is an RP-mapping agent (Loopback1)

Group(s) 234.55.55.11/32

  RP 200.0.0.1 (?), v2v1

    Info source: 200.0.0.1 (?), elected via Auto-RP

         Uptime: 00:24:12, expires: 00:02:49

Group(s) 234.55.55.12/32

  RP 200.0.0.1 (?), v2v1

    Info source: 200.0.0.1 (?), elected via Auto-RP

         Uptime: 00:24:30, expires: 00:02:27

Group(s) 234.55.55.13/32

  RP 200.0.0.1 (?), v2v1

    Info source: 200.0.0.1 (?), elected via Auto-RP

         Uptime: 01:48:37, expires: 00:02:14

Group(s): 224.0.0.0/4, Static

    RP: 200.0.0.1 (?)

r1#sh ip pim neighbor

PIM Neighbor Table

Mode: B - Bidir Capable, DR - Designated Router, N - Default DR
Priority,

      S - State Refresh Capable

Neighbor Interface Uptime/Expires Ver DR

Address
Prio/Mode

150.50.17.2 FastEthernet1/0 02:06:13/00:01:38 v2 1 /
DR S

Other router

r2#sh ip pim rp mapping

PIM Group-to-RP Mappings

r2#sh ip pim neighbor

PIM Neighbor Table

Mode: B - Bidir Capable, DR - Designated Router, N - Default DR
Priority,

      S - State Refresh Capable

Neighbor Interface Uptime/Expires Ver DR

Address
Prio/Mode

150.50.17.1 FastEthernet0/0 02:05:51/00:01:29 v2 1 / S



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