[c-nsp] Cisco 7600 and 'show mfib' commands

[Tony]

Hi John,

Yes, mfib = multicast FIB.

Are the boxes in question running multicast ?  (hint: "show run | i multicast")

What were the previous tickets about (or opened for) ?

I'm not sure why they would be used for anything other than troubleshooting multicast traffic, it could be specific to a linecard if that was the problem encountered.


regards,
Tony.



________________________________
 From: John Neiberger <jneiberger at gmail.com>
To: "cisco-nsp at puck.nether.net" <cisco-nsp at puck.nether.net> 
Sent: Tuesday, 29 July 2014 2:47 AM
Subject: [c-nsp] Cisco 7600 and 'show mfib' commands
 

I'm at a new job and was looking at a few recent trouble tickets. I see
that TAC had them use variations of the 'show mfib' commands, like 'show
mfib linecard summary'. At my previous job, we had a few hundred 7600s but
I don't recall TAC ever directing us to use those commands. I took a peek
at them and it's not clear what I'm looking at.

When I see mfib, I assume multicast FIB. I can't really tell if that's what
I'm looking at or not, or the significance of the commands.

I wasn't able to find much good info about these commands on CCO. Do any of
you have any idea what these are really looking at? It seems that they
might be useful for troubleshooting linecard issues but I'm entirely
unfamiliar with them.
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