From: Rik Guyler (rik@guyler.net)
Date: Tue Apr 15 2008 - 12:06:00 ART
I agree...mtrace is useful for sure. Anybody have any luck with MRM? I've
gone through the rather limited docs on it and just can't seem to get it
working. That would be a useful tool as well if it worked.
Rik
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Gary
Duncanson
Sent: Tuesday, April 15, 2008 10:58 AM
To: Ronnie Angello
Cc: ccielab@groupstudy.com
Subject: Re: Multicast Routing Table Woes
mtrace works..useful command that!
Gary
----- Original Message -----
From: "Ronnie Angello" <ronnie.angello@gmail.com>
To: "Matt Bentley" <mattdbentley@gmail.com>
Cc: <ccielab@groupstudy.com>
Sent: Tuesday, April 15, 2008 3:54 PM
Subject: Re: Multicast Routing Table Woes
> mtrace is a good one too, at least it was very helpful for me.
>
> On Tue, Apr 15, 2008 at 10:45 AM, Sadiq Yakasai <sadiqtanko@gmail.com>
> wrote:
>> Hi Guys,
>>
>> Just to add a little to what you keep an eye out for Matt, "debug ip
>> pim" would be another resourceful debug to run when you are running
>> PIM. The FLAGS. I cannot over emphasize the importance of
>> understanding all the Flags. It always points you to a right direction
>> when troubleshooting an mrouting issue.
>>
>> As for the mroute table:
>>
>> (*, 225.0.0.1), 00:22:48/stopped, RP 15.15.15.15, flags: SJCLF
>> Incoming interface: FastEthernet0/3, RPF nbr 3.3.3.1
>> Outgoing interface list:
>> FastEthernet0/2, Forward/Sparse, 00:19:41/00:03:16, H
>>
>> This entry tells you this router knows about the Group (225.0.0.1). It
>> knows how to get to it (Incoming Interface, F0/3) and has someone
>> already joined this group downstream (Outgoing Interface List, F0/2).
>>
>> (2.2.2.2, 225.0.0.1), 00:00:06/00:02:53, flags: LFT
>> Incoming interface: FastEthernet0/1, RPF nbr 0.0.0.0, Registering
>> Outgoing interface list:
>> FastEthernet0/2, Forward/Sparse, 00:00:06/00:02:53, H
>>
>> This entry tells you someone has already pushed traffic for the group.
>> And the mcast traffic is from 2.2.2.2, coming in through F0/1 and
>> going towards someone who is listening for the group, having joined
>> the group ealier, via F0/2.
>>
>> Anyways, keep doing it over and over and over again, and it will all
>> makes sense eventually. One thing at a time.
>>
>> HTH
>>
>> Sadiq
>>
>>
>>
>> Pass the CCIE in six weeks, Guaranteed!
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>>
>>
>>
>
>
>
> --
> Ronald Angello
> CCIE #17846
>
>
> Pass the CCIE in six weeks, Guaranteed!
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