What kind of ethernet card do you have? There are some programs floating around that will give you the status of your card, do a search on google for "donald becker ethernet" and you should hopefully end up at Donald's web page full o' ethernet luvin'. You can force the card into specific speed/duplex settings by passing the module options at boot. I have 2 NIC's in my box, and here are the relavant lines from my modules.conf file: alias eth0 3c59x alias eth1 eepro100 options 3c59x options=12 options eepro100 options=0x30 These options force each card to 100/full. I don't know the settings for other speed/duplex settings, I found them on a website somewhere, it's different for every brand of card. I wish linux was like BSD where you could just use the "ifconfig" command to change speed/duplex settings, but you can't. Jay > -----Original Message----- > From: Mark K [mailto:mkroska at readynetgo.com] > Sent: Wednesday, March 07, 2001 6:49 PM > To: tclug-list at mn-linux.org > Subject: Re: [TCLUG] how to tell the kernel eth0 is half-duplex > > > > Is the cable modem plugged into a: hub, switch, directly into > the PC with > crossover? > > If the connection doesn't involve a switch of some type, I > don't know that > it's possible to get full duplex. I've seen hubs and > crossovers do ONLY > 1/2 duplex and I don't think it's possible to do > "full-duplex" with a 10Mb > connection, which is what most cable modems seem to have on > the ethernet > port. > > What are you considering "a high rate" of collisions, 5%, 10% > more? Some > collisions will always occur, even with a switch. > > If you have a 10/100 switch, the collisions will occur simply > because the > computer will try to shove 100 pounds of fries into a 10 pound bag. > > I really don't have a way of knowing about how the NIC is running in > full-duplex or not. With the NetGear 310-TX we use, the > driver suggests > which "mode" it's in, 3Com gives some useful data, but no > hard and fast > rules. > > Does this help? > > MK > > > On Wed, 7 Mar 2001, Chuck Larson wrote: > > > Hi all, > > > > Sorry I missed the install fest on saturday; I had a fever of 100.6. > > > > So, I have a cable modem (through roadrunner) and I am > getting a high rate of collisions. I was looking through the > specs on the modem and noticed it is half-duplex. Is there > anyway to set/check the half-duplex status on the NIC on my > linux router. > > > > _____________________________________________________________ > > Domain powered by www.iReg.com > > E-mail powered by www.1FreeEmail.com > > _______________________________________________ > > tclug-list mailing list > > tclug-list at mn-linux.org > > https://mailman.mn-linux.org/mailman/listinfo/tclug-list > > > > -- > ________________________________________________________ > ReadyNET Go!, Inc. - Building your Business on the net > ________________________________________________________ > > Mark J. Kroska > MIS Director > > 320.656.0765 Voice > 888.447.3239 Toll Free > 320.203.7052 Fax > http://www.readynetgo.com > mailto:mkroska at readynetgo.com > ________________________________________________________ > > > > > _______________________________________________ > tclug-list mailing list > tclug-list at mn-linux.org > https://mailman.mn-linux.org/mailman/listinfo/tclug-list >