Date: Wed, 21 Jul 1999 11:03:49 +0200 From: sthaug@nethelp.no To: vince@venus.GAIANET.NET Cc: dillon@apollo.backplane.com, mrcpu@internetcds.com, modred@ns1.antisocial.net, leifn@neland.dk, freebsd-hackers@FreeBSD.ORG Subject: Re: poor ethernet performance? Message-ID: <23526.932547829@verdi.nethelp.no> In-Reply-To: Your message of "Wed, 21 Jul 1999 01:43:53 -0700 (PDT)" References: <Pine.BSF.4.05.9907210141360.331-100000@venus.GAIANET.NET>
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> > 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 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. Steinar Haug, Nethelp consulting, sthaug@nethelp.no To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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