From: Darby Weaver (darbyweaver@yahoo.com)
Date: Fri Apr 20 2007 - 08:23:37 ART
Hmmm...
1. Verify all interfaces are PIM-enabled.
2. Work your way from the receiver to the source -
troubleshoot each hop and the procedure is
well-documented in the univercd.
- Verify IGP routing is setup and working properly
- join the multicast group (may have to repeat at each
hop)
- ping 224.23.23.23 rep 10000
- sh ip igmp
- sh ip mroute (at each hop)
- sh ip mcache
- sh ip mroute count
- sh ip interface count
- etc.
Check your RPF table at each hop and repeat the
process.
And what are you debugs looking like?
debug ip multicast packet
Do you have the exact configs and the exact output
that we might be able to lab up and see if all get the
same poroblem you are experiencing?
On the interface: no ip mroute-cache
You might want to disable fast switching, which places
the router in process switching, if packets are not
reaching their destinations. If fast switching is
disabled and packets are reaching their destinations,
then switching may be the cause.
BTW - Have you used Multicast Routing Monitor to
verify?
And you have no access-lists which may be blocking
multicast traffic?
And no QoS either?
Have you tried these commands:
mrinfo?
mstat?
mtrace?
What is their output?
What is the output from these commands?
sh ip pim neigh
sh ip pim int
sh ip mpacket
sh ip rpf
sh ip mcache
The configs on the device in question and the
immediate neighbor would be nice.
Thanks,
Darby
--- ismail el-shalh <ishelh_mdsa@yahoo.com> wrote:
> which lab is this ?
>
> ----- Original Message ----
> From: Digital Yemeni <digital.yemeni@gmail.com>
> To: ccielab <ccielab@groupstudy.com>
> Sent: Thursday, April 19, 2007 2:22:44 PM
> Subject: MCAST olist NULL issue!!
>
> Can anyone explain to me how to resolve the
> multicast issue of the "olist
> null" problem and how to get an interface to the
> outgoing list?!
> I got the RP and MA right in their places with the
> IGP being modified to
> prevent the possibilty of RPF failure and even added
> the "mroute" for both
> RP and MA but i still could not get the ping reach
> the source!! The
> following shows that the drops is not because of
> RPF! So i started to tear
> my hair!!
>
> Forwarding Counts: Pkt Count/Pkts per second/Avg Pkt
> Size/Kilobits per
> second
> Other counts: Total/RPF failed/Other drops(OIF-null,
> rate-limit etc)
> Group: 224.23.23.23, Source count: 1, Packets
> forwarded: 0, Packets
> received: 5
> RP-tree: Forwarding: 0/0/0/0, Other: 0/0/0
> Source: 10.10.101.50/32, Forwarding: 0/-1/0/0,
> Other: 5/0/5
>
> Thanks guys for any help!
>
> --
> Best Regards!
> Digital, CCIE# to be assigned by Cisco when it
> collects enough $$ out of me!
> :p
>
>
This archive was generated by hypermail 2.1.4 : Tue May 01 2007 - 08:28:36 ART