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Date: Mon, 13 Oct 2003 17:53:12 -0400 From: Richard A Steenbergen <ras@e-gerbil.net> To: Mikael Abrahamsson <swmike@swm.pp.se> Cc: nanog@merit.edu In-Reply-To: <Pine.LNX.4.44.0310132308380.6300-100000@uplift.swm.pp.se> Errors-To: owner-nanog-outgoing@merit.edu On Mon, Oct 13, 2003 at 11:10:32PM +0200, Mikael Abrahamsson wrote: > > On Mon, 13 Oct 2003 sthaug@nethelp.no wrote: > > > I don't understand how you can differentiate between a router and an L3 > > switch. In my view "L3 switch" is a marketing term. All high end boxes > > do hardware based IP forwarding, whether their ancestry is from the L2 > > or the L3 side. > > To me something that uses hardware assist, setup by the cpu per > destination, is an L3 Switch. Something that does equal route lookups per > packet all the time is a router. So a 7500 with a fast cache is a L3 switch? :) The closest definition you'll get to an L3 switch is a box which does primarily or only Ethernet, can easily become an L2 ethernet switch again with different software, and uses software hacks on a normal ethernet CAM to do forwarding lookups. Other than that, it's just generalizations and stereotypes. Oh and of course, marketing. -- Richard A Steenbergen <ras@e-gerbil.net> http://www.e-gerbil.net/ras GPG Key ID: 0xF8B12CBC (7535 7F59 8204 ED1F CC1C 53AF 4C41 5ECA F8B1 2CBC)
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