Core knowledge Q from Anthony J. Sequeira - Diagrams for

From: ALL From_NJ <all.from.nj_at_gmail.com>
Date: Fri, 25 Sep 2009 13:35:45 -0400

Hello Team, happy Friday.

Was thinking about the tshooting section and I saw an old post from Anthony
which included this Q&A:

Q: If you create a tunnel for multicast traffic and do not enable an
IGP over the tunnel, what command is needed on the router that needs
to receive the multicast feeds?
A: ip mroute

I was like wow ... ok, cool. This would not have crossed my mind in the
past and I got to thinking about how a tshooting ticket might look.

Question for the team -

1) How would you have gone about tshooting this? Start w/ a ping or
mtrace?
2) How to discover these things quickly?
3) Does it help to see that the routers register the s,g correctly, but that
a ping fails?

My guess is that a question like this would state something like
"administrator bob has configured his network for mcast, however when bob
starts a mcast stream, traffic does not go through. Fix bob's network".

Also - will we have a separate set of diagrams and addressing for the
tshooting section?

Rock on team, and many TIA,

-- 
Andrew Lee Lissitz
all.from.nj_at_gmail.com
Blogs and organic groups at http://www.ccie.net
Received on Fri Sep 25 2009 - 13:35:45 ART

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