[115784] in North American Network Operators' Group
Re: Point to Point Ethernet
daemon@ATHENA.MIT.EDU (sthaug@nethelp.no)
Thu Jul 9 02:34:32 2009
Date: Thu, 09 Jul 2009 08:34:12 +0200 (CEST)
To: tkapela@gmail.com
From: sthaug@nethelp.no
In-Reply-To: <2e9d8ae50907081604uabbba04wb285a40c7c66f102@mail.gmail.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
> Best case, you blow 12 bytes on IFG in gig, 20 bytes on fast-e/slow-e.
As far as I know Gig and 10 Gig (with LAN PHY) are exactly the same
as 10 and 100 Mbps in this respect, i.e. 8 bytes of preamble and 12
bytes of IFG. So you always have an overhead of 20 bytes, no matter
what.
10 Gig with WAN PHY is a whole different ballgame, of course.
Steinar Haug, Nethelp consulting, sthaug@nethelp.no
