crossover cable

Unanswered Question
Jul 20th, 2007

Hi all, is there any reason why we use a crossover between switches ? why cant we use a straight through cable if they support full duplex ?

I have this problem too.
0 votes
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 5 (1 ratings)
Loading.
mohammedmahmoud Fri, 07/20/2007 - 07:04

Hi Carl,

Crossover cables are used between switches in order to connect Tx1 to Rx2 and vice versa (in order for the switches to exchange traffic), however there is a feature called AutoMDIX can do the crossover automatically but it is not supported in all switches.

HTH,

Mohammed Mahmoud.

mohammedmahmoud Fri, 07/20/2007 - 08:59

Hi Carl,

Hubs and switches are deliberately wired opposite the way end stations are wired, so that when a hub or switch is connected to an end station, a "straight through" ethernet cable can be used and the pairs will match up properly. When two hub/switches are connected to each other, or two end stations are connected to each other, a "crossover" cable is used to make sure that the correct pairs are connected.

HTH,

Mohammed Mahmoud.

Actions

This Discussion