Command r1 # sh ip pim ap r1 # sh ip pim rp r1 # sh ip pim rp cannot see RPr1 # sh IP mroute ip Multicast Routing Table Flags: D-Dense, s-Sparse, B-Bidir Group, s-SSM Group, C-Connected, L-Local, P-Pruned, R-RP-bit set, F-Register flag, t-SPT-bit set, J-Join SPT, M-MSDP created entry, X-Proxy Join Timer Running, A-Candidate for MSDP Advertisement, U-URD, i-Received Source Specific Ho St Report, Z-Multicast Tunnel, z-MDT-data group sender, Y-Joined MDT-data group, y-Sending to MDT-data group Outgoing interface flags: h-Hardware switched, A-Assert winner Timers: Uptime/Expires Interface state: Interface, Next-Hop or VCD, State/Mode (*, 224.0.1.39), 00:28:29/stopped, RP 0.0.0.0, flags: DC Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: Ethernet0/1, F Orward/Sparse-Dense, 00:28:29/00:00:00 Serial0/0, Forward/Sparse-Dense, 00:28:29/00:00:00 (10.10.4.4, 224.0.1.39), 00:18:58/00:02:51, flags: T Incoming interface: serial0/0, RPF nbr 10.10.11.4 Outgoing interface list: Ethernet0/1, Forward/Sparse-Dense, 00:18:59/00:00:00 (*, 224.0.1.40), 00:28:43/stopped, RP 0.0.0.0, flags: DCL Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: Ethern Et0/1, Forward/Sparse-Dense, 00:28:43/00:00:00 Serial0/0, Forward/Sparse-Dense, 00:28:43/00:00:00 (10.10.4.4, 224.0.1.40), 00:10:16/00:02:39, flags: LT Incoming interface: Serial0/0, RPF nbr 10.10.11.4 Outgoing interface list: Ethernet0/1, Forward/Sparse-Dense, 00:10:17/00:00:00 cannot see the correct group r1 # ping 224.30.30.30 Translating "224.30.30.30" Type escape sequence to abort. sending 1, 100-byte ICMP Echos to 224. 30.30.30, timeout is 2 seconds: Reply to request 0 from 10.10.11.4, 104 ms group can be pinged and then show rp, already SHOW Join group? Cause: Unknown, the PIM process may be activated, r1 # sh ip pim rp r1 # sh ip pim rp Group: 224.30.30.30, RP: 10.10.4.4, v2, v1, uptime 00:10:48, expires 00:02:04 Group: 224.50.50.50, RP: 10.10.4.4, v2, v1, uptime 00:10:48, expires 00:02:02