Date: Wed, 21 Jul 1999 03:23:08 -0700 (PDT) From: Vincent Poy <vince@venus.GAIANET.NET> To: sthaug@nethelp.no Cc: dillon@apollo.backplane.com, mrcpu@internetcds.com, modred@ns1.antisocial.net, leifn@neland.dk, freebsd-chat@FreeBSD.ORG Subject: Re: poor ethernet performance? Message-ID: <Pine.BSF.4.05.9907210321100.331-100000@venus.GAIANET.NET> In-Reply-To: <23526.932547829@verdi.nethelp.no>
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On Wed, 21 Jul 1999 sthaug@nethelp.no wrote: > > > If the switch "just has the default setup" I would recommend that > > > somebody sit down and read the manual and try to *understand* what is > > > happening - probably also try to experiment a bit with the switch > > > configuration. Because what you're seeing is definitely not normal. > > > > Well, the manual doesn't guarantee security either.... > > This is true, and was well pointed out by Jan B. Koum. But most of the > time the switch will nicely isolate traffic for you. > > However, if you are connected to what Cisco calls a "group switch > module" (on a Cisco switch, of course) you need to be aware of what > this really is. A Cisco "group switch" module is in reality a number > of hubs (3 or 4) on one card. All ports in the same group will see the > same traffic, of course. The Cisco switch we're using is more of the desktop module and not a backbone model so it doesn't have the modules. Think the 2924XL is probably the lowest end of the Catlyst as one can get for 10/100. > > The only > > thing the switch seems to do is give dedicated bandwidth to each port but > > no one knows if it's a true switch since someone did mention a CableTron > > switch being nothing but a bundled of hub ports inside grouped together. > > You need to make up your mind. Do you have a Cisco Catalyst switch or a > Cabletron switch? Since earlier in this thread you said "we don't know > which port goes to what on the Catalyst" I assumed that you were indeed > using a Cisco Catalyst. Since I don't know anything about Cabletron, I'll > let others speak about that. I am using a Cisco Catalyst and I'm just using CableTron as a example since that's what someone else said. Cheers, Vince - vince@MCESTATE.COM - vince@GAIANET.NET ________ __ ____ Unix Networking Operations - FreeBSD-Real Unix for Free / / / / | / |[__ ] GaiaNet Corporation - M & C Estate / / / / | / | __] ] Beverly Hills, California USA 90210 / / / / / |/ / | __] ] HongKong Stars/Gravis UltraSound Mailing Lists Admin /_/_/_/_/|___/|_|[____] To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message
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