Date: Sat, 18 Sep 1999 19:25:42 -0400 From: Michael Jamet <mjamet@computer.org> To: questions@FreeBSD.ORG Subject: Re: Networking problem -2 boxes in a dorm room Message-ID: <37E41F76.2C0E6E80@computer.org> References: <000d01bf0228$f61b39b0$0fc9d380@resnet.purdue.edu>
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Andrew, You seem to have left out some information, but I'll do my best to cover the bases. I'm making the following assumptions: The dorm jack is rj45 supporting 10-baseT. The coax network card is also 10Mb/s because there is no 100Mb/s spec for coax (that I know of) The hub is a 10baseT hub, not switch. Are these assumptions correct? How did you connect the coax to your hub? Also, when you only have 1 machine plugged in, is it plugged into the hub or straight into the dorm jack? I ask because it could be a collision propagation problem between your hub and whatever is upstream. A single directly connected machine would not have this problem. (A switch would not have this problem either). The other thing that comes to mind is one system is running half duplex, while the other runs full duplex. The half duplex system might see the other system's transmissions instead of a reflection of its own - those would be considered network errors. Please provide more details regarding the assumptions above and run "netstat -in". Michael Jamet Andrew Buettner wrote: > > here's my situation: 2 boxes(1 nt (rj-45), 1 freebsd (coax)), 1 dorm room > ethernet jack, and a hub. I have 2 valid IPs. Either box works fine alone, > but if I have them both plugged into the hub at the same time, my bsd box > get's 50-60% packet loss (which goes away simply by disconnecting the NT box > form the hub) what might be the souce of my problem? > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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