Date: Wed, 15 Dec 1999 22:22:53 -0500 From: "Mikhail Evstiounin" <evstiounin@adelphia.net> To: "Juha Saarinen" <juha@saarinen.org>, "Mike Tancsa" <mike@sentex.net> Cc: <questions@freebsd.org> Subject: Re: Not such good networking performance with FreeBSD Message-ID: <001901bf4774$d768a0c0$d3353018@evstiouninadelphia.net.pit.adelphia.net>
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Oops, sorry, didn's see this letter - skip my previous posting. -----Original Message----- From: Juha Saarinen <juha@saarinen.org> To: Mike Tancsa <mike@sentex.net> Cc: questions@freebsd.org <questions@freebsd.org> Date: Tuesday, December 14, 1999 10:39 PM Subject: RE: Not such good networking performance with FreeBSD >> >> See if there are any errors in the switch on the port that FreeBSD is >> attached to. I seem to recall reading some issues about this particular >> card. You might try explicitly forcing the duplex to either half or full >> and seeing how that effects performance. The main thing is for the card and >> switch to agree on the settings. Dont trust auto-neg, as most of the times >> I have found it not to work properly. You should be able to tell by just >> doing some transfers from one machine to another on your LAN. > >Unfortunately, it's an unmanaged switch, so I can't get anything useful >out of it like port stats and diags. > >I get full speed ftp transfers (~1MBps, the switch has only one 100Mbps >port, the rest are 10Mbps) at the moment, but will try the FD thing as >well. > >I was just trying to figure out how to explicitly force the card into >full-duplex... ifconfig ?? > >> Yes. If the box is going to act as a router. > >Ahh.. thanks. I'm using the box as a caching http proxy, email, ftp, Web, >ssh etc. server, but I suppose as it only has the one network interface, >it isn't doing much routing at the moment. > >> >> You should not have to change any of those values. The default should give >> you performance adequate to saturate a 10BaseT LAN given minimal sufficient >> hardware. > >I'm in New Zealand, and much of this country's Internet connectivity comes >via satellite. RTTs to hosts outside NZ range from 200ms if I'm lucky, to >350ms and higher typically. I've found that increasing the TCP receive >buffers on Linux, WinNT and Win98 make a huge difference in this >situation. > >Cheers, > >-- Juha > > > >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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