Date: Thu, 26 Dec 2002 17:04:31 -0500 (EST) From: Jameel Akari <jakari@bithose.com> To: Trevor Johnson <trevor@jpj.net> Cc: <alpha@FreeBSD.ORG> Subject: Re: 5.0-RC2 on Alphaserver 4100 mostly a success Message-ID: <Pine.OSF.4.33.0212261656510.28837-100000@poptart.bithose.com> In-Reply-To: <20021226162035.I19983-100000@blues.jpj.net>
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On Thu, 26 Dec 2002, Trevor Johnson wrote: > from another computer on the same Fast Ethernet hub. The one problem I > noticed is that the files transferred slowly by FTP, at less than 10 > ewa0.0.0.2.1 00-00-F8-00-3C-EC FastFD (Full Duplex) If you are indeed using a hub, then having the NIC set to full-duplex is bound to cause problems. You'll have to set ewa_mode in SRM, I think, to use 100/half or autosense. Otherwise the transceiver on the NIC and/or the hub keep flipping back and forth, and things just suck. > de0: <Digital 21140 Fast Ethernet> port 0x1ffef00-0x1ffef7f mem 0x7efff00-0x7efff7f irq 8 at device 2.0 on pci0 > de0: interrupting at IRQ 0x0 intA (vec 0xb80) > de0: DEC DE500-XA 21140 [10-100Mb/s] pass 1.1 > de0: address 00:00:f8:00:3c:ec > de0: enabling Full Duplex 100baseTX port I think some DE500s have problems going at 100/full even on a proper 100Mbit switch.. the one in my PWS500au (miata) crawls as 50-100kB/sec when everything is forced to 100/full. Much happier at 100/half, so I set the ewa_mode and the switch port speeds to match. I think this is fixed in later revisions of the DE500. Anyone working with Sun machines and the hme card know all about the evils of marginal speed/duplex settings.. so simple, yet such a perennial pain... #!/jameel/akari sleep 4800; make clean && make breakfast To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
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