> It meets the spec when shipped but the bends, curves, temperature > and other factors do affect the performance. I guess a good way to test > the cable is with FreeBSD since it's the only real OS I've seen that can > do like real world speeds. The only thing is that has anyone really saw > 12 Megabytes/sec Full Duplex under FreeBSD?
If you mean mega = 1048576, it's impossible since this is faster than 100 Mbps whichever way you count it. If you mean mega = 1000000, it depends on which way you're counting. The "speed of light" for TCP, application to application, on 100 Mbps Ethernet is 100 * 1460/1538 = 94.93 Mbps. This assumes full duplex. I've measured 94.87 Mbps myself on full duplex 100BaseTX (back to back with a crossover cable or through a switch). This is close enough to the "speed of light" that I see no point in trying to improve on it... Steinar Haug, Nethelp consulting, [email protected] To Unsubscribe: send mail to [email protected] with "unsubscribe freebsd-hackers" in the body of the message
