nanog mailing list archives
Re: switch speed question
From: Roy <r.engehausen () gmail com>
Date: Tue, 24 Feb 2009 09:15:24 -0800
Eric Gearhart wrote:
.... Note that the traffic to a switch is bi-directional (full duplex) - so a 24 port gigabit switch can max out its 32 Gig backplane, if all 24 ports have a gig coming in and going out (24 X 2 is 48, more than the 32 gig backplane). ....
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.
Current thread:
- switch speed question Deric Kwok (Feb 23)
- Re: switch speed question Brian Feeny (Feb 23)
- RE: switch speed question Bruce Grobler (Feb 24)
- Re: switch speed question Eric Gearhart (Feb 24)
- Re: switch speed question Tony Varriale (Feb 24)
- Re: switch speed question Roy (Feb 24)
- Re: switch speed question Chris Adams (Feb 24)
- Re: switch speed question Eric Gearhart (Feb 24)
- RE: switch speed question Holmes,David A (Feb 24)
- <Possible follow-ups>
- Re: switch speed question deleskie (Feb 24)
- Re: switch speed question Tom Storey (Feb 25)
- Re: switch speed question David Barak (Feb 25)
- Re: switch speed question Tom Storey (Feb 25)
- Re: switch speed question Nathan Ward (Feb 25)
- Re: switch speed question Dave Israel (Feb 25)
- Re: switch speed question David Barak (Feb 25)