birdwatcher: (Default)
[personal profile] birdwatcher
Вот такой патч-корд:



А что, зеленые и коричневые провода низачем не нужны, что ли? Зачем же я их всегда с таким трудом вставляю?

Date: 2010-01-10 03:27 pm (UTC)
From: [identity profile] nms.livejournal.com
Цитата из http://en.wikipedia.org/wiki/1000BASE-T#1000BASE-T

1000BASE-T requires all four pairs to be present. If two Gigabit devices are connected through a non-compliant Cat5 cable with two pairs only, negotiation takes place on two pairs only, so the devices successfully choose 'gigabit' as the Highest Common Denominator (HCD), but the link never goes up. Most gigabit physical devices have a specific register to diagnose this behaviour. Some drivers offer an "Ethernet@Wirespeed" option where this situation leads to a slower yet functional connection