Date: Fri, 8 Mar 1996 09:50:40 -0800 (PST) From: Chris Timmons <skynyrd@tahoma.cwu.edu> To: Michael Dillon <michael@memra.com> Cc: Stefan Molnar <emerson@pinn.net>, freebsd-isp@FreeBSD.ORG Subject: Re: Slow Network Speeds. Message-ID: <Pine.VUL.3.91.960308093533.21597E-100000@tahoma.cwu.edu> In-Reply-To: <Pine.BSF.3.91.960307191719.28325E-100000@sidhe.memra.com>
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I had a similar experience once, when in a moment of great compulsiveness, I connected an HP 10baseT hub to the station port of a transceiver fanout (eg. DELNI) with a tp/AUI adapter. At the time I was using an NE2000 clone on my FreeBSD machine. The FreeBSD machine could interact fine with other hosts on the hub, but anything that had to go through the transceiver fanout would run slowly as you describe. I knew that this topology was an abomination so I didn't spend too much time figuring out exactly what was wrong, but it seemed to behave as though carrier sensing wasn't working properly (as if I'd created a copper ethernet of length 5km :(. Some other hosts fared better than the FreeBSD machine but I didn't hold it against FreeBSD because my ethernet was broken. Wiring everything through the 10baseT hub and eliminating the transceiver fanout solved the problem. Never start a project you don't have the appropriate parts to finish ;) -Chris On Thu, 7 Mar 1996, Michael Dillon wrote: > On Thu, 7 Mar 1996, Stefan Molnar wrote: > > > Hello, I have a little problem. I am trying to setup a FreeBSD > > server within my school network to handle all the mail and such. > > It is connected, but I have extremly slow speeds over the network. > > The machine is a P5-75 w/16MB using a 3com 509 (I think, not sure > > of the model) over a UTP using Cat-5 wire and Cabletron TPRMIM-22 > ^^^^^^^^^^^^^^^^^^^ > What is this thing? > > > card. I am getting an adverage ping responce time of 500ms from > > and to the server. > > If this is on the Ethernet, then your Ethernet segment is utterly broken. > Start looking for bad equipment there. I get 150ms ping times from my > FreeBSD box through a 33.6kbps PPP modem connection and around 2ms ping > times on the Ethernet segment. > > > Michael Dillon Voice: +1-604-546-8022 > Memra Software Inc. Fax: +1-604-546-3049 > http://www.memra.com E-mail: michael@memra.com >
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