We have a 1750 router with f0/0 and s0/1. The LAN is 203.145.163.176 255.255.255.240 connected to f0/0 . .179 , . 182 and .181 PCs multicast on ip 230.0.0.0 to 230.0.0.10 . Both the f0/0 and s0/1 are configured for pim dense mode and igmp join group of 230.0.0.0 to .10 .
Problem:
We are able to see 875 kbps of traffic on f0/0 but on s0/1 it drops down to 50 kbps with only stream from 203.145.163.182 on multicast ip 230.0.0.0 ( sh ip mroute active ) all other traffic from other IPs .179 , .181 is dropped at serial .. when we do debug ip mrouting following is the output
01:29:32: MRT: Update (*, 230.0.0.3), RPF Null, PC 0x805570D4
01:29:32: MRT: Update (*, 230.0.0.0), RPF Null, PC 0x805570D4
01:29:33: MRT: Update (*, 230.0.0.4), RPF Null, PC 0x805570D4
01:29:34: MRT: Update (*, 230.0.0.8), RPF Null, PC 0x805570D4
01:29:35: MRT: Update (*, 230.0.0.2), RPF Null, PC 0x805570D4
01:29:37: MRT: Update (*, 230.0.0.6), RPF Null, PC 0x805570D4
01:29:37: MRT: Update (*, 230.0.0.5), RPF Null, PC 0x805570D4
01:29:38: MRT: Update (*, 224.0.1.38), RPF Null, PC 0x805570D4
01:29:39: MRT: Update (*, 230.0.0.1), RPF Null, PC 0x805570D4
01:29:39: MRT: Update (*, 230.0.0.10), RPF Null, PC 0x805570D4
01:29:39: MRT: Update (*, 230.0.0.9), RPF Null, PC 0x805570D4
01:29:40: MRT: Update (*, 230.0.0.7), RPF Null, PC 0x805570D4
01:29:40: MRT: Update (*, 225.0.0.1), RPF Null, PC 0x805570D4
we even added a mroute
ip mroute 203.145.163.176 255.255.255.240 203.145.163.190 ( f0/0 ip address )
but the packets are dropped even after adding RPF route. Can I know what is causing the problem. Any help is highly appreciated.
Other debugs
HTL#sh ip mrou
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, 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 - Advertised via MSDP
Outgoing interface flags: H - Hardware switched
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 224.0.1.38), 01:37:16/00:02:25, RP 0.0.0.0, flags: DJC
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Serial0/1, Forward/Dense, 01:37:16/00:00:00
FastEthernet0/0, Forward/Dense, 00:42:29/00:00:00
(*, 224.0.1.40), 02:03:01/00:00:00, RP 0.0.0.0, flags: DJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Serial0/1, Forward/Dense, 02:02:46/00:00:00
(*, 230.0.0.6), 00:43:07/00:00:00, RP 0.0.0.0, flags: DJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
FastEthernet0/0, Forward/Dense, 00:43:07/00:00:00
Serial0/1, Forward/Dense, 00:43:07/00:00:00
(*, 225.0.0.1), 02:02:05/00:02:22, RP 0.0.0.0, flags: DJC
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Serial0/1, Forward/Dense, 02:02:05/00:00:00
FastEthernet0/0, Forward/Dense, 00:42:34/00:00:00
(*, 230.0.0.7), 00:43:12/00:00:00, RP 0.0.0.0, flags: DJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
FastEthernet0/0, Forward/Dense, 00:43:12/00:00:00
Serial0/1, Forward/Dense, 00:43:12/00:00:00
(*, 230.0.0.4), 02:03:07/00:00:00, RP 0.0.0.0, flags: DJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Serial0/1, Forward/Dense, 02:03:06/00:00:00
FastEthernet0/0, Forward/Dense, 00:43:16/00:00:00
(*, 230.0.0.5), 00:43:14/00:00:00, RP 0.0.0.0, flags: DJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
FastEthernet0/0, Forward/Dense, 00:43:14/00:00:00
Serial0/1, Forward/Dense, 00:43:14/00:00:00
(*, 230.0.0.2), 00:43:21/00:00:00, RP 0.0.0.0, flags: DJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Serial0/1, Forward/Dense, 00:43:21/00:00:00
FastEthernet0/0, Forward/Dense, 00:43:16/00:00:00
(*, 230.0.0.3), 00:43:20/00:00:00, RP 0.0.0.0, flags: DJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Serial0/1, Forward/Dense, 00:43:20/00:00:00
FastEthernet0/0, Forward/Dense, 00:43:16/00:00:00
(*, 230.0.0.0), 02:03:10/00:00:00, RP 0.0.0.0, flags: DJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Serial0/1, Forward/Dense, 02:03:09/00:00:00
FastEthernet0/0, Forward/Dense, 00:43:16/00:00:00
(203.145.163.182, 230.0.0.0), 02:03:07/00:02:59, flags: CLTA
Incoming interface: FastEthernet0/0, RPF nbr 0.0.0.0
Outgoing interface list:
Serial0/1, Forward/Dense, 00:43:13/00:00:00
(*, 230.0.0.1), 02:03:13/00:00:00, RP 0.0.0.0, flags: DJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Serial0/1, Forward/Dense, 02:03:12/00:00:00
FastEthernet0/0, Forward/Dense, 00:43:19/00:00:00
(*, 230.0.0.10), 00:43:05/00:00:00, RP 0.0.0.0, flags: DJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
FastEthernet0/0, Forward/Dense, 00:43:05/00:00:00
Serial0/1, Forward/Dense, 00:43:05/00:00:00
(*, 230.0.0.8), 00:43:16/00:00:00, RP 0.0.0.0, flags: DJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
FastEthernet0/0, Forward/Dense, 00:43:16/00:00:00
Serial0/1, Forward/Dense, 00:43:16/00:00:00
(*, 230.0.0.9), 00:43:15/00:00:00, RP 0.0.0.0, flags: DJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
FastEthernet0/0, Forward/Dense, 00:43:15/00:00:00
Serial0/1, Forward/Dense, 00:43:15/00:00:00
