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| Thread ID: 27802 | 2002-12-03 06:55:00 | Cat or Coax? | Terry Porritt (14) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 102995 | 2002-12-05 02:33:00 | GL You are quite correct in that the sending device doesn't necessarily wait for each ack; otherwise things would be terminally slow on networks with long ping times. I suspect the acks are (unfortunately) colliding with other packets. And yes I do know which led the collision one is. Interestingly, copying files the other way, from the Win98 machine to the Xp machine results in no collisions, albeit the throughput is not quite as fast. I suspect the collisions are a victim of a combination of the timing / response of the two machines involved - by the time the Win98 machine 'Acks', another packet is being sent by the Xp machine. If I had a full duplex connection, I wouldn't have the collisions. | wuppo (41) | ||
| 102996 | 2002-12-05 02:58:00 | If making the transfer go the other way eliminates collisions, but goes slower you can't have a collision problem. ;-) A collision problem causes a major slowdown. Lots of packets need to be resent after increasing random delays. A few collisions don't matter. Ethernet is nice ... I remember doing file transfers through 4800 bps serial lines. Anyway, coax and twisted pair are both OK. Coax has the major advantage that no-one can get the "pairs" mixed when fitting plugs. Though I heard of some people who saved money on the installation by using Belling-Lee sockets (75 ohm) on the wall points for the fixed cable. It didn't work. Surprise. |
Graham L (2) | ||
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