From: Mark Stephanus Chandra (mark.chandra@gmail.com)
Date: Wed Nov 12 2008 - 11:22:55 ARST
Hi Jankok,
Thanks a lot for your reply.
When is your lab date anyway ?
Regards
Mark Stephanus Chandra
IT Consultant
From: L. Jankok [mailto:ljankok@gmail.com]
Sent: 12 Nopember 2008 16:30
To: Mark Stephanus Chandra
Cc: ccielab@groupstudy.com
Subject: Re: How to determine using Ip mroute for RPF CHeck or not ?
Hi Mark,
To my understanding a multicast path is created manually by enabling certain
interfaces on
certain l3 devices.
The RPF check depends on your multicast type; (S,G) or (*,G).
In (*,G) the rpf check will be against the IP address of the RP
In (S,G) (Dense Mode) the rpf check will be against the IP address of the
Source (Client).
With practice you will know immediately if you have an rpf failure or not
because you know
how your l3 is routing and you know the multicast path you have created
manually.
I am also close to my lab date. What I am doing now is going back to do tech
labs for
every technology part I feel weak on.
Regards,
Lucio Jankok
2008/11/12 Mark Stephanus Chandra <mark.chandra@gmail.com>
guys,
My real lab just in a couple of weeks forward and I still don't know how to
verify when I have to us ip mroute static for multicast or not.
How can I debug when there is an rpf failure ? How to verify it ?
The mroute static is used for the source to the client only right ? For
multicast we just have to concern about the route from source to client, not
client to source ?
And when to test a multicast source connection with a command interfce ip
igmp join group, is that interface have to be a part of the mulcticast mode
(sparse-mode, dense-mode, sparse-dense mode)?
Please correct me if I'm wrong
Thanks a lot guys
Regards
Mark Stephanus Chandra
IT Consultant
Blogs and organic groups at http://www.ccie.net <http://www.ccie.net/>
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