From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <5DD31A171181D31184A100508B5ED98901E34099@MSP0-MSX1.Ingenix.com> From: Dean Ash To: "'9fans@cse.psu.edu'" <9fans@cse.psu.edu> Subject: RE: [9fans] stats: ethererr MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Date: Thu, 16 Aug 2001 16:08:46 -0500 Topicbox-Message-UUID: df903c7c-eac9-11e9-9e20-41e7f4b1d025 cool, now I have a beginning. driver I don't know about that one. P9 recognizes the card (I'm told it's a 3COM 905, have to verify that). = Card is a distinct possibility, linux didn't work with it either, which I'd say = is weird with a 3COM card. Wire, maybe the one coming out of the computer = is bad but I'm almost 80% sure the port that connects P9 to the rest of = the network is bad. Well I'll have to do some futzing around this weekend = if time permits. Thanks for the help. Great website by the way Boyd. I = just got done going through it, very humorous. Dean -----Original Message----- From: Boyd Roberts [mailto:boyd@fr.inter.net] Sent: Thursday, August 16, 2001 3:58 PM To: 9fans@cse.psu.edu Subject: Re: [9fans] stats: ethererr i shall try and resurrect my badly banged around neurons after my g=F6teborg trip, so here goes: > >> - crc means your packets are trashed when they get received each ethernet packet has a 16 bit crc. it 'ensures' that it got received ok, but that's a lie. talk to Sun about UDP checksums... so on the rx and tx sides the crc's have to be done right. > Received by whom or what? the DHCP server? or my p9 machine? if it's = my > machine doing the trashing is there a way to fix it? if they're = getting > trashed by the dhcp server what can I do to fix that, especially = since I > have to go through a network admin =3D) this has nothing to do with DHCP. these is the physical bits on the = wire [ethernet]. DHCP is a coupla layers up. you have wire/card/driver problems. the framing is to do with the pre/post-able bits that are there to = ensure collisions based on speed of light / velocity factor propagation. = well, maybe i really mean that the coax/utp needs to be modulated in the = right way at the right time. > The other stuff was greek to me. Tx, rx? what is that apparently I = need to > read a book on basic networking and ethernet cards. tx =3D transmit rx =3D receive de f/vk2bhr ...