802.3 Straight-through VS Crossover
Posted on 2003-11-05
I was just wondering why there were two types of cables.
I mean, I know Router to Router and Computer to Computer need Crossover and the usually the rest need Straight-through but
why is it that way.
Pin 1 and 2 on a computer are meant to send bytes. 3 and 6 to reveive. So a router or switch will listen on 1 and 2 (since
that's where the computers send). And then, they will send on 3 and 6 because that's were computers expect to receive a signal.
But aren't the routers, like computers, expect a signal on 3 & 6 and would then send it on 1 and 2?
Is there a reason? Did I miss something?