From: Schulz, Dave (DSchulz@dpsciences.com)
Date: Sun Apr 02 2006 - 22:06:15 GMT-3
George -
You already received a lot of good input already, so I won't repeat
that...but, you may want to check to make sure that you have proper unicast
connectivity with your loopbacks. Did you confirm that you are getting the rp
mapping at R2 and R3? (show ip pim rp map)
Dave
________________________________
From: nobody@groupstudy.com on behalf of george stanza
Sent: Sun 4/2/2006 7:30 PM
To: ccielab@groupstudy.com
Subject: Multicast auto-rp question
greetings:
Here is a simple multicast question over a frame-relay. I have a hub-spoke
topology with R1 as a multipoint interface to R2 and R3. R3 has join-group
to 225.225.1.1. On R2, i cannot see the mroute nor ping the
225.225.1.1address, but R1 and R3 can see it.. Assume IGP is working
perfectly on all
the links..Any idea whats going wrong ?
On R2:
=====
(*, 224.0.1.39), 00:30:55/stopped, RP 0.0.0.0, OIF count: 0, flags: DP
(25.25.1.1, 224.0.1.39), 00:01:22/00:01:37, OIF count: 0, flags: PT
(*, 224.0.1.40), 00:31:19/stopped, RP 0.0.0.0, OIF count: 1, flags: DCL
(25.25.1.1, 224.0.1.40), 00:30:06/00:02:43, OIF count: 1, flags: LT
R3:
====
(*, 225.225.1.1), 04:42:49/stopped, RP 25.25.1.1, OIF count: 1, flags: SJCLF
(25.25.3.3, 225.225.1.1), 00:01:53/00:01:36, OIF count: 1, flags: LFT
(*, 224.0.1.39), 05:11:54/stopped, RP 0.0.0.0, OIF count: 0, flags: DP
(25.25.1.1, 224.0.1.39), 00:02:54/00:00:05, OIF count: 0, flags: PT
(*, 224.0.1.40), 06:09:37/stopped, RP 0.0.0.0, OIF count: 0, flags: DPL
(25.25.1.1, 224.0.1.40), 05:03:55/00:02:15, OIF count: 0, flags: PLT
The configurations on R1, R2 and R3 are as follows:
R1:
===
int Loopback 0
ip address 25.25.1.1 255.255.255.255
ip pim sparse-mode
!
interface Serial2/1.123 multipoint
ip address 25.7.123.1 255.255.255.0
ip pim sparse-mode
!
access-list 25 permit 225.225.1.1
ip pim send-rp-announce Loopback0 scope 16 group-list 25
ip pim send-rp-discovery Loopback0 scope 16
R2:
===
interface Loopback 0
ip address 25.25.2.2 255.255.255.255
ip pim sparse-mode
!
interface Serial1
ip address 25.7.123.2 255.255.255.0
ip pim sparse-mode
R3:
===
interface Loopback 0
ip address 25.25.3.3 255.255.255.255
ip pim sparse-mode
!
interface Ethernet2/0
ip address 25.7.28.1 255.255.255.0
ip pim sparse-mode
ip igmp join-group 225.225.1.1
!
interface Serial1/0
ip address 25.7.123.3 255.255.255.0
ip pim sparse-mode
!
This archive was generated by hypermail 2.1.4 : Mon May 01 2006 - 11:41:56 GMT-3