From mboxrd@z Thu Jan 1 00:00:00 1970 From: Grant Taylor Date: Thu, 21 Jun 2007 01:34:01 +0000 Subject: Re: [LARTC] Linux bridging and cascaded switches Message-Id: <4679D589.7090304@riverviewtech.net> List-Id: References: <925A849792280C4E80C5461017A4B8A210B8D8@mail733.InfraSupportEtc.com> In-Reply-To: <925A849792280C4E80C5461017A4B8A210B8D8@mail733.InfraSupportEtc.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lartc@vger.kernel.org On 6/19/2007 11:07 PM, Alex Samad wrote: > I think that was the old 5-4-3 or was it 4-3-2 ... I think that was > more in the days of repeater and broadcast hubs. Modern day switch I > believe allow for a lot more. To the best of my knowledge (including inquiries with colleagues) the proverbial "3,4,5" rule for Ethernet was prior to switches, as in a store and forward, mechanism. I think the rule was mainly to help timing and to prevent signal degradation, which switches help take care of. So, now, at least in theory, you could have a bridged network the world over in one really big broadcast domain. The problem would be that it is one really big broadcast domain which has its own down sides to consider and mitigate. Grant. . . . _______________________________________________ LARTC mailing list LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc