Gert, I know that in case of full-duplex link there should be no collisions. What I meant was that why shouldn't "late collision" occur in half-duplex network if it works properly? Collisions are normal behaviour of half-duplex links, but not "late-collisions". Is it because in time it takes Tx in one end to send 512b of data to a wire, the Rx of the other end should have already received the first bits of the frame(if the cable length is in standards etc) and doesn't try to transmit anything until the frame is completely received?
regards, martin 2011/7/31 Gert Doering <[email protected]>: > Hi, > > On Sun, Jul 31, 2011 at 07:39:08AM +0300, Martin T wrote: >> what do you mean by "telco gear"? > > If you order a cross-city ethernet link from a telco, they usually > force duplex/speed settings on their gear and turn off autonegotiation. > > In that case you need to hard-wire your end as well, of course. > >> And I understand that late collision >> is a collision which happens after the first 512b of frame are on the >> wire, but why shouldn't late collisions occur in case the network is >> fine? > > On a full-duplex link, there *are no collisions*. Never. > > gert > -- > USENET is *not* the non-clickable part of WWW! > //www.muc.de/~gert/ > Gert Doering - Munich, Germany [email protected] > fax: +49-89-35655025 [email protected] > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
