[c-nsp] N7K fabric behavior

[Tim Durack]

Trying to get something clear in my mind:

N7K, 2x FAB-2, fabric redundancy, 220G capacity.

N7K, 3x FAB-2, fabric redundancy, 330G capacity.

...

N7K, 5x FAB-2, fabric redundancy, 550G capacity.


Cisco recommend a minimum of 3 FAB-2 cards. Why?

If I choose to ignore this recommendation, what is the impact?

Is the fabric behavior different for M1/F1/F2 generation line cards?

I understand the implications of over-subscription. If a 2x FAB-2
chassis is not over-subscribed due to the mix of 1G and 10G ports,
will the fabric perform correctly? (I'm thinking yes, as this is a
simple math equation. There is no other fabric-magic going on.
Sales-Engineering is trying to convince me otherwise :-)

Thanks for humoring me.

-- 
Tim:>