nanog mailing list archives

Re: switch speed question


From: Chris Adams <cmadams () hiwaay net>
Date: Tue, 24 Feb 2009 11:25:28 -0600

Once upon a time, Roy <r.engehausen () gmail com> said:
I think your math is faulty.  While there may be 24G going in and 24G
going out, there is only 24G crossing the backplane.  You can't count a
bit twice (once on in and once on out).  Its the same bit.

Not every bit in results in just one bit out.  Broadcast, multicast,
flooding for unknown MACs (or switching failures), ...
-- 
Chris Adams <cmadams () hiwaay net>
Systems and Network Administrator - HiWAAY Internet Services
I don't speak for anybody but myself - that's enough trouble.


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