multicast auto-rp problem
I was trying to duplicate the scenario from the Class On Demand cd from day 5 part 1 multicast where you have routers R3 -->connected to R1--> connected to R2. So, in the COD Brian configures auto-rp on R2 by configuring:
!
ip pim send-rp-announce Loopback0 scope 255
ip pim send-rp-discovery Loopback0 scope 255
!
He then goes through the routers and does a show ip pim rp mappings on all the routers R2 then R1 then R3 to show us how the mapping info is passed down through the routers from R2 which is the rp-canidate and the Mapping agent.
However, In my lab, the RP mapping info never shows up on my R3. Show ip pim rp mapping shows nothing.
Also, Debugs of mpacket on R1 show the following:
R1#
00:48:03: IP(0): s=150.1.2.2 (FastEthernet0/0) d=224.0.1.40 id=3217, ttl=254, prot=17, len=62(48), mroute olist null
00:48:17: IP(0): s=150.1.2.2 (FastEthernet0/0) d=224.0.1.39 id=3230, ttl=254, prot=17, len=62(48), mroute olist null
00:49:03: IP(0): s=150.1.2.2 (FastEthernet0/0) d=224.0.1.40 id=3263, ttl=254, prot=17, len=62(48), mroute olist null
Here are my configs from R2,R1,R3
R2:
R2#sh run
Building configuration...
Current configuration : 3015 bytes
!
version 12.2
!
hostname R2
!
enable password cisco
!
ip subnet-zero
ip cef
!
!
no ip domain-lookup
!
ip multicast-routing
no mpls traffic-eng auto-bw timers frequency 0
call rsvp-sync
!
interface Loopback0
ip address 150.1.2.2 255.255.255.255
ip pim sparse-mode
ip router isis
!
interface FastEthernet0/0
description r1
ip address 150.1.12.2 255.255.255.0
ip pim sparse-mode
ip router isis
no ip mroute-cache
load-interval 30
duplex half
mpls ip
!
!
interface Ethernet5/0
description r4
ip address 150.1.24.2 255.255.255.0
ip router isis
no ip mroute-cache
duplex half
mpls ip
!
!
!
!
router isis
net 49.0000.0000.0002.00
is-type level-2-only
!
ip classless
!
ip pim send-rp-announce Loopback0 scope 255
ip pim send-rp-discovery Loopback0 scope 255
!
!
!
end
R2#
R2# show ip pim ne
PIM Neighbor Table
Neighbor Interface Uptime/Expires Ver DR
Address Prio/Mode
150.1.12.1 FastEthernet0/0 01:24:07/00:01:15 v2 1 / S
R2#
R2#ping 150.1.3.3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 150.1.3.3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 16/36/56 ms
R2#traceroute 150.1.3.3
Type escape sequence to abort.
Tracing the route to 150.1.3.3
1 150.1.12.1 [MPLS: Label 18 Exp 0] 12 msec 24 msec 32 msec
2 150.1.13.3 40 msec * 32 msec
R2#
-------------------------------------------------------------------
R1#sh run
Building configuration...
Current configuration : 2478 bytes
!
version 12.2
!
hostname R1
!
enable password cisco
!
ip subnet-zero
ip cef
!
!
no ip domain-lookup
!
ip multicast-routing
no mpls traffic-eng auto-bw timers frequency 0
mpls label protocol ldp
call rsvp-sync
!
!
interface Loopback0
ip address 150.1.1.1 255.255.255.255
ip router isis
!
interface FastEthernet0/0
description r2
ip address 150.1.12.1 255.255.255.0
ip pim sparse-mode
ip router isis
no ip mroute-cache
duplex half
mpls ip
!
interface Ethernet5/0
description r3
ip address 150.1.13.1 255.255.255.0
ip pim sparse-mode
ip router isis
service-policy output TRAFFIC_OUT
no ip mroute-cache
duplex half
mpls ip
!
router isis
net 49.0000.0000.0001.00
is-type level-2-only
!
ip classless
!
end
R1#
PIM Neighbor Table
Neighbor Interface Uptime/Expires Ver DR
Address Prio/Mode
150.1.12.2 FastEthernet0/0 01:27:34/00:01:21 v2 1 / DR S
150.1.13.3 Ethernet5/0 00:57:01/00:01:23 v2 1 / DR S
R1#sh ip pim rp mapping
PIM Group-to-RP Mappings
Group(s) 224.0.0.0/4
RP 150.1.2.2 (?), v2v1
Info source: 150.1.2.2 (?), elected via Auto-RP
Uptime: 00:08:34, expires: 00:02:21
R1#
R1#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 Host Report, Z - Multicast Tunnel
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), 00:09:00/stopped, RP 0.0.0.0, flags: DP
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list: Null
(150.1.2.2, 224.0.1.39), 00:01:00/00:01:59, flags: PT
Incoming interface: FastEthernet0/0, RPF nbr 150.1.12.2
Outgoing interface list: Null
(*, 224.0.1.40), 01:28:37/stopped, RP 0.0.0.0, flags: DPL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list: Null
(150.1.2.2, 224.0.1.40), 00:08:59/00:02:56, flags: PLT
Incoming interface: FastEthernet0/0, RPF nbr 150.1.12.2
Outgoing interface list: Null
R1#
R1#debug ip mpacket
IP multicast packets debugging is on
R1#debug ip pim
PIM debugging is on
R1#debug ip igmp
IGMP debugging is on
R1#
01:30:17: IGMP(0): Send v2 general Query on FastEthernet0/0
01:30:17: IGMP(0): Set report delay time to 3.6 seconds for 224.0.1.40 on FastEthernet0/0
01:30:18: IGMP(0): Send v2 general Query on Ethernet5/0
01:30:21: IGMP(0): Send v2 Report for 224.0.1.40 on FastEthernet0/0
01:30:21: IGMP(0): Received v2 Report on FastEthernet0/0 from 150.1.12.1 for 224.0.1.40
01:30:21: IGMP(0): Received Group record for group 224.0.1.40, mode 2 from 150.1.12.1 for 0 sources
01:30:21: IGMP(0): Updating EXCLUDE group timer for 224.0.1.40
01:30:21: IGMP(0): MRT Add/Update FastEthernet0/0 for (*,224.0.1.40) by 0
01:30:23: IGMP(0): Received v2 Report on FastEthernet0/0 from 150.1.12.2 for 224.0.1.39
01:30:23: IGMP(0): Received Group record for group 224.0.1.39, mode 2 from 150.1.12.2 for 0 sources
01:30:23: IGMP(0): Updating EXCLUDE group timer for 224.0.1.39
01:30:23: IGMP(0): MRT Add/Update FastEthernet0/0 for (*,224.0.1.39) by 0
01:30:37: IP(0): s=150.1.2.2 (FastEthernet0/0) d=224.0.1.40 id=5648, ttl=254, prot=17, len=62(48), mroute olist null
01:30:41: IP(0): s=150.1.2.2 (FastEthernet0/0) d=224.0.1.39 id=5654, ttl=254, prot=17, len=62(48), mroute olist null
01:31:17: IGMP(0): Send v2 general Query on FastEthernet0/0
01:31:17: IGMP(0): Set report delay time to 6.4 seconds for 224.0.1.40 on FastEthernet0/0
01:31:18: IGMP(0): Send v2 general Query on Ethernet5/0
01:31:21: IGMP(0): Received v2 Report on FastEthernet0/0 from 150.1.12.2 for 224.0.1.39
01:31:21: IGMP(0): Received Group record for group 224.0.1.39, mode 2 from 150.1.12.2 for 0 sources
01:31:21: IGMP(0): Updating EXCLUDE group timer for 224.0.1.39
01:31:21: IGMP(0): MRT Add/Update FastEthernet0/0 for (*,224.0.1.39) by 0
01:31:24: IGMP(0): Send v2 Report for 224.0.1.40 on FastEthernet0/0
01:31:24: IGMP(0): Received v2 Report on FastEthernet0/0 from 150.1.12.1 for 224.0.1.40
01:31:24: IGMP(0): Received Group record for group 224.0.1.40, mode 2 from 150.1.12.1 for 0 sources
01:31:24: IGMP(0): Updating EXCLUDE group timer for 224.0.1.40
01:31:24: IGMP(0): MRT Add/Update FastEthernet0/0 for (*,224.0.1.40) by 0
01:31:37: IP(0): s=150.1.2.2 (FastEthernet0/0) d=224.0.1.40 id=5698, ttl=254, prot=17, len=62(48), mroute olist null
01:31:41: PIM(0): Insert (150.1.2.2,224.0.1.39) prune in nbr 150.1.12.2's queue
01:31:41: IP(0): s=150.1.2.2 (FastEthernet0/0) d=224.0.1.39 id=5704, ttl=254, prot=17, len=62(48), mroute olist null
01:31:41: PIM(0): Building Join/Prune packet for nbr 150.1.12.2
01:31:41: PIM(0): Adding v2 (150.1.2.2/32, 224.0.1.39) Prune
01:31:41: PIM(0): Send v2 join/prune to 150.1.12.2 (FastEthernet0/0)
01:32:17: IGMP(0): Send v2 general Query on FastEthernet0/0
01:32:17: IGMP(0): Set report delay time to 3.2 seconds for 224.0.1.40 on FastEthernet0/0
01:32:18: IGMP(0): Send v2 general Query on Ethernet5/0
01:32:21: IGMP(0): Received v2 Report on FastEthernet0/0 from 150.1.12.2 for 224.0.1.39
01:32:21: IGMP(0): Received Group record for group 224.0.1.39, mode 2 from 150.1.12.2 for 0 sources
01:32:21: IGMP(0): Updating EXCLUDE group timer for 224.0.1.39
01:32:21: IGMP(0): MRT Add/Update FastEthernet0/0 for (*,224.0.1.39) by 0
01:32:21: IGMP(0): Send v2 Report for 224.0.1.40 on FastEthernet0/0
01:32:21: IGMP(0): Received v2 Report on FastEthernet0/0 from 150.1.12.1 for 224.0.1.40
01:32:21: IGMP(0): Received Group record for group 224.0.1.40, mode 2 from 150.1.12.1 for 0 sources
01:32:21: IGMP(0): Updating EXCLUDE group timer for 224.0.1.40
01:32:21: IGMP(0): MRT Add/Update FastEthernet0/0 for (*,224.0.1.40) by 0
01:32:37: IP(0): s=150.1.2.2 (FastEthernet0/0) d=224.0.1.40 id=5745, ttl=254, prot=17, len=62(48), mroute olist null
01:32:41: IP(0): s=150.1.2.2 (FastEthernet0/0) d=224.0.1.39 id=5752, ttl=254, prot=17, len=62(48), mroute olist null
01:33:18: IGMP(0): Send v2 general Query on FastEthernet0/0
01:33:18: IGMP(0): Set report delay time to 2.7 seconds for 224.0.1.40 on FastEthernet0/0
01:33:19: IGMP(0): Send v2 general Query on Ethernet5/0
01:33:21: IGMP(0): Send v2 Report for 224.0.1.40 on FastEthernet0/0
01:33:21: IGMP(0): Received v2 Report on FastEthernet0/0 from 150.1.12.1 for 224.0.1.40
01:33:21: IGMP(0): Received Group record for group 224.0.1.40, mode 2 from 150.1.12.1 for 0 sources
01:33:21: IGMP(0): Updating EXCLUDE group timer for 224.0.1.40
01:33:21: IGMP(0): MRT Add/Update FastEthernet0/0 for (*,224.0.1.40) by 0
01:33:22: IGMP(0): Received v2 Report on FastEthernet0/0 from 150.1.12.2 for 224.0.1.39
01:33:22: IGMP(0): Received Group record for group 224.0.1.39, mode 2 from 150.1.12.2 for 0 sources
01:33:22: IGMP(0): Updating EXCLUDE group timer for 224.0.1.39
01:33:22: IGMP(0): MRT Add/Update FastEthernet0/0 for (*,224.0.1.39) by 0
01:33:37: IP(0): s=150.1.2.2 (FastEthernet0/0) d=224.0.1.40 id=5793, ttl=254, prot=17, len=62(48), mroute olist null
01:33:40: IP(0): s=150.1.2.2 (FastEthernet0/0) d=224.0.1.39 id=5801, ttl=254, prot=17, len=62(48), mroute olist null
01:34:18: IGMP(0): Send v2 general Query on FastEthernet0/0
01:34:18: IGMP(0): Set report delay time to 9.9 seconds for 224.0.1.40 on FastEthernet0/0
01:34:19: IGMP(0): Send v2 general Query on Ethernet5/0
01:34:22: IGMP(0): Received v2 Report on FastEthernet0/0 from 150.1.12.2 for 224.0.1.39
01:34:22: IGMP(0): Received Group record for group 224.0.1.39, mode 2 from 150.1.12.2 for 0 sources
01:34:22: IGMP(0): Updating EXCLUDE group timer for 224.0.1.39
01:34:22: IGMP(0): MRT Add/Update FastEthernet0/0 for (*,224.0.1.39) by 0
01:34:28: IGMP(0): Send v2 Report for 224.0.1.40 on FastEthernet0/0
01:34:28: IGMP(0): Received v2 Report on FastEthernet0/0 from 150.1.12.1 for 224.0.1.40
01:34:28: IGMP(0): Received Group record for group 224.0.1.40, mode 2 from 150.1.12.1 for 0 sources
01:34:28: IGMP(0): Updating EXCLUDE group timer for 224.0.1.40
01:34:28: IGMP(0): MRT Add/Update FastEthernet0/0 for (*,224.0.1.40) by 0
01:34:36: IP(0): s=150.1.2.2 (FastEthernet0/0) d=224.0.1.40 id=5842, ttl=254, prot=17, len=62(48), mroute olist null
01:34:41: IP(0): s=150.1.2.2 (FastEthernet0/0) d=224.0.1.39 id=5848, ttl=254, prot=17, len=62(48), mroute olist null
R1#
R1#un all
All possible debugging has been turned off
R1#
----------------------------------------------------------------------------------------------------------------------------------
R3#sh run
Building configuration...
Current configuration : 3399 bytes
!
version 12.4
hostname R3
!
enable password cisco
!
!
ip cef
no ip domain lookup
!
!
ip multicast-routing
!
!
vtp file nvram:vlan.dat
!
!
!
interface Loopback0
ip address 150.1.3.3 255.255.255.255
ip router isis
!
interface Ethernet0/0
description R7
ip address 10.1.37.3 255.255.255.0
ip router isis
ip pim sparse-mode
no ip mroute-cache
half-duplex
!
!
interface Ethernet0/3
description R1
ip address 150.1.13.3 255.255.255.0
ip router isis
ip pim sparse-mode
no ip mroute-cache
half-duplex
mpls ip
!
!
!
router isis
net 49.0000.0000.0003.00
!
ip http server
ip forward-protocol nd
!
!
end
R3#
R3#
R3#debug ip pim
PIM debugging is on
R3#debug ip igmp
IGMP debugging is on
R3#debug ip mpacket
IP multicast packets debugging is on
R3#
R3#
R3#term mon
R3#
*Mar 1 01:40:44.743: IGMP(0): Received v2 Query on Ethernet0/3 from 150.1.13.1
*Mar 1 01:41:05.251: IGMP(0): Send v2 general Query on Ethernet0/0
*Mar 1 01:41:05.255: IGMP(0): Set report delay time to 7.7 seconds for 224.0.1.40 on Ethernet0/0
*Mar 1 01:41:13.255: IGMP(0): Send v2 Report for 224.0.1.40 on Ethernet0/0
*Mar 1 01:41:13.255: IGMP(0): Received v2 Report on Ethernet0/0 from 10.1.37.3 for 224.0.1.40
*Mar 1 01:41:13.255: IGMP(0): Received Group record for group 224.0.1.40, mode 2 from 10.1.37.3 for 0 sources
*Mar 1 01:41:13.255: IGMP(0): Updating EXCLUDE group timer for 224.0.1.40
*Mar 1 01:41:13.255: IGMP(0): MRT Add/Update Ethernet0/0 for (*,224.0.1.40) by 0
*Mar 1 01:41:44.903: IGMP(0): Received v2 Query on Ethernet0/3 from 150.1.13.1
*Mar 1 01:42:05.295: IGMP(0): Send v2 general Query on Ethernet0/0
*Mar 1 01:42:05.299: IGMP(0): Set report delay time to 0.5 seconds for 224.0.1.40 on Ethernet0/0
*Mar 1 01:42:06.303: IGMP(0): Send v2 Report for 224.0.1.40 on Ethernet0/0
*Mar 1 01:42:06.303: IGMP(0): Received v2 Report on Ethernet0/0 from 10.1.37.3 for 224.0.1.40
*Mar 1 01:42:06.303: IGMP(0): Received Group record for group 224.0.1.40, mode 2 from 10.1.37.3 for 0 sources
*Mar 1 01:42:06.303: IGMP(0): Updating EXCLUDE group timer for 224.0.1.40
*Mar 1 01:42:06.303: IGMP(0): MRT Add/Update Ethernet0/0 for (*,224.0.1.40) by 0
*Mar 1 01:42:45.031: IGMP(0): Received v2 Query on Ethernet0/3 from 150.1.13.1
*Mar 1 01:43:05.339: IGMP(0): Send v2 general Query on Ethernet0/0
*Mar 1 01:43:05.343: IGMP(0): Set report delay time to 0.1 seconds for 224.0.1.40 on Ethernet0/0
*Mar 1 01:43:06.355: IGMP(0): Send v2 Report for 224.0.1.40 on Ethernet0/0
*Mar 1 01:43:06.355: IGMP(0): Received v2 Report on Ethernet0/0 from 10.1.37.3 for 224.0.1.40
*Mar 1 01:43:06.355: IGMP(0): Received Group record for group 224.0.1.40, mode 2 from 10.1.37.3 for 0 sources
*Mar 1 01:43:06.355: IGMP(0): Updating EXCLUDE group timer for 224.0.1.40
*Mar 1 01:43:06.355: IGMP(0): MRT Add/Update Ethernet0/0 for (*,224.0.1.40) by 0
*Mar 1 01:43:45.251: IGMP(0): Received v2 Query on Ethernet0/3 from 150.1.13.1
*Mar 1 01:44:05.387: IGMP(0): Send v2 general Query on Ethernet0/0
*Mar 1 01:44:05.391: IGMP(0): Set report delay time to 6.0 seconds for 224.0.1.40 on Ethernet0/0
*Mar 1 01:44:11.431: IGMP(0): Send v2 Report for 224.0.1.40 on Ethernet0/0
*Mar 1 01:44:11.431: IGMP(0): Received v2 Report on Ethernet0/0 from 10.1.37.3 for 224.0.1.40
*Mar 1 01:44:11.431: IGMP(0): Received Group record for group 224.0.1.40, mode 2 from 10.1.37.3 for 0 sources
*Mar 1 01:44:11.431: IGMP(0): Updating EXCLUDE group timer for 224.0.1.40
*Mar 1 01:44:11.431: IGMP(0): MRT Add/Update Ethernet0/0 for (*,224.0.1.40) by 0
*Mar 1 01:44:45.359: IGMP(0): Received v2 Query on Ethernet0/3 from 150.1.13.1
*Mar 1 01:45:05.455: IGMP(0): Send v2 general Query on Ethernet0/0
*Mar 1 01:45:05.459: IGMP(0): Set report delay time to 2.3 seconds for 224.0.1.40 on Ethernet0/0
*Mar 1 01:45:08.483: IGMP(0): Send v2 Report for 224.0.1.40 on Ethernet0/0
*Mar 1 01:45:08.483: IGMP(0): Received v2 Report on Ethernet0/0 from 10.1.37.3 for 224.0.1.40
*Mar 1 01:45:08.483: IGMP(0): Received Group record for group 224.0.1.40, mode 2 from 10.1.37.3 for 0 sources
*Mar 1 01:45:08.483: IGMP(0): Updating EXCLUDE group timer for 224.0.1.40
*Mar 1 01:45:08.483: IGMP(0): MRT Add/Update Ethernet0/0 for (*,224.0.1.40) by 0
*Mar 1 01:45:45.583: IGMP(0): Received v2 Query on Ethernet0/3 from 150.1.13.1
*Mar 1 01:46:05.519: IGMP(0): Send v2 general Query on Ethernet0/0
*Mar 1 01:46:05.523: IGMP(0): Set report delay time to 2.7 seconds for 224.0.1.40 on Ethernet0/0
*Mar 1 01:46:08.543: IGMP(0): Send v2 Report for 224.0.1.40 on Ethernet0/0
*Mar 1 01:46:08.543: IGMP(0): Received v2 Report on Ethernet0/0 from 10.1.37.3 for 224.0.1.40
*Mar 1 01:46:08.543: IGMP(0): Received Group record for group 224.0.1.40, mode 2 from 10.1.37.3 for 0 sources
*Mar 1 01:46:08.543: IGMP(0): Updating EXCLUDE group timer for 224.0.1.40
*Mar 1 01:46:08.543: IGMP(0): MRT Add/Update Ethernet0/0 for (*,224.0.1.40) by 0
*Mar 1 01:46:45.751: IGMP(0): Received v2 Query on Ethernet0/3 from 150.1.13.1
*Mar 1 01:47:05.555: IGMP(0): Send v2 general Query on Ethernet0/0
*Mar 1 01:47:05.559: IGMP(0): Set report delay time to 7.2 seconds for 224.0.1.40 on Ethernet0/0
*Mar 1 01:47:13.579: IGMP(0): Send v2 Report for 224.0.1.40 on Ethernet0/0
*Mar 1 01:47:13.579: IGMP(0): Received v2 Report on Ethernet0/0 from 10.1.37.3 for 224.0.1.40
*Mar 1 01:47:13.579: IGMP(0): Received Group record for group 224.0.1.40, mode 2 from 10.1.37.3 for 0 sources
*Mar 1 01:47:13.579: IGMP(0): Updating EXCLUDE group timer for 224.0.1.40
*Mar 1 01:47:13.579: IGMP(0): MRT Add/Update Ethernet0/0 for (*,224.0.1.40) by 0
*Mar 1 01:47:45.967: IGMP(0): Received v2 Query on Ethernet0/3 from 150.1.13.1
*Mar 1 01:48:05.603: IGMP(0): Send v2 general Query on Ethernet0/0
*Mar 1 01:48:05.603: IGMP(0): Set report delay time to 7.2 seconds for 224.0.1.40 on Ethernet0/0
*Mar 1 01:48:13.619: IGMP(0): Send v2 Report for 224.0.1.40 on Ethernet0/0
*Mar 1 01:48:13.619: IGMP(0): Received v2 Report on Ethernet0/0 from 10.1.37.3 for 224.0.1.40
*Mar 1 01:48:13.619: IGMP(0): Received Group record for group 224.0.1.40, mode 2 from 10.1.37.3 for 0 sources
*Mar 1 01:48:13.619: IGMP(0): Updating EXCLUDE group timer for 224.0.1.40
*Mar 1 01:48:13.619: IGMP(0): MRT Add/Update Ethernet0/0 for (*,224.0.1.40) by 0
*Mar 1 01:48:46.187: IGMP(0): Received v2 Query on Ethernet0/3 from 150.1.13.1
*Mar 1 01:49:05.659: IGMP(0): Send v2 general Query on Ethernet0/0
*Mar 1 01:49:05.663: IGMP(0): Set report delay time to 5.2 seconds for 224.0.1.40 on Ethernet0/0
*Mar 1 01:49:11.699: IGMP(0): Send v2 Report for 224.0.1.40 on Ethernet0/0
*Mar 1 01:49:11.703: IGMP(0): Received v2 Report on Ethernet0/0 from 10.1.37.3 for 224.0.1.40
*Mar 1 01:49:11.703: IGMP(0): Received Group record for group 224.0.1.40, mode 2 from 10.1.37.3 for 0 sources
*Mar 1 01:49:11.703: IGMP(0): Updating EXCLUDE group timer for 224.0.1.40
*Mar 1 01:49:11.703: IGMP(0): MRT Add/Update Ethernet0/0 for (*,224.0.1.40) by 0
*Mar 1 01:49:46.355: IGMP(0): Received v2 Query on Ethernet0/3 from 150.1.13.1
*Mar 1 01:50:05.683: IGMP(0): Send v2 general Query on Ethernet0/0
*Mar 1 01:50:05.687: IGMP(0): Set report delay time to 7.1 seconds for 224.0.1.40 on Ethernet0/0
Comments
If you're running PIM in sparse-mode only you'll need to add "ip pim
auto-rp listener" to force the routers to treat 224.0.1.39 and
224.0.1.40 as dense mode groups. The other option would be to run
sparse-dense mode.
HTH,
Brian McGahan, CCIE #8593 (R&S/SP/Security)
[email protected]
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987 x 705
Outside US: 775-826-4344 x 705
Online Community: http://www.IEOC.com
CCIE Blog: http://blog.internetworkexpert.com
rockriver wrote:
That make sense . That is what I was thinking as well but on the COD cd on day 5 part 1 multicast and if you fast forward to time 36:35 (36 minutes and 35 seconds) it talks about how since R2 is configured as RP and Mapping agent , its canidate-rp messages don't need to go anywhere ,and as long as we can get the canidate rp message to the mapping agent then there is no requirement to run pim-sparse-dense mode or auto-rp-listener.
Also, I never actually see where auto-rp-listener is configured on R1 , but when show ip pim rp mappings is done on R3, it has the mapping info. I basically just followed along and configed just like the COD but could not get the RP mapping output on R3,
note***- Previous to time 36:35 in the COD , it talked about BSR. I was able to get the BSR config between R4,R5, and R6 to work fine. Functionally, it seems that BSR is the way to go for Mcast implementation.
thanks,
shane
I guess my point is that the COD explanation seems misleading/wrong since the explanation in the COD says you don't need pim-sparse-dense mode or rp-listener if you configure R2 as both rp-canidate and mapping agent. Maybe I misunderstood the COD but Ive watched it multiple times and thats what it says.
If all devices are directly connected to R2 then that explanation is
correct. The router will automatically listen for 224.0.1.40 as soon
as PIM is enabled.
Brian McGahan, CCIE #8593 (R&S/SP/Security)
[email protected]
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987 x 705
Outside US: 775-826-4344 x 705
Online Community: http://www.IEOC.com
CCIE Blog: http://blog.internetworkexpert.com
rockriver wrote:
Thats the thing, R1 is the only router directly connected to R2. R1 sits between R3 and R2.
R3 is connected to R1. When you get a chance, please check out the COD and you will see what I mean. MInute 20 (approximatly) on the COD shows the router topology.
Thanks for your time with this,
shane