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Can a crossover cable be used as a normal cable too, when using with a router, switch,hub etc.

What situations may it not work in and are there other issues to be aware of when using crossover versus normal network cables?

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The usual term is Ethernet crossover cable –  RedGrittyBrick Feb 21 '12 at 17:45

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up vote 4 down vote accepted

Wikipedia says

Owing to the inclusion of Auto-MDIX capability, modern implementations of the Ethernet over twisted pair standards usually no longer require the use of crossover cables.

Which implies that a crossover Ethernet cable can be used in place of a straight-through Ethernet cable with recent equipment.

Older Ethernet hubs and switches sometimes had a special "uplink" port or a "normal/uplink" button for this purpose,

Ethernet Hub with "normal/uplink" toggle-button

I don't see these on recent equipment. I believe this is because they nowadays have Auto-MDIX and don't need special ports or buttons for crossover connections.

enter image description here

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AFAIK the Auto-MDIX feature is mandatory for all Gigabit Ethernet ports, therefore if you have such a port at least on one side you have it for sure. –  Robert Feb 21 '12 at 18:17
    
It may be worth mentioning that often you'll still see the equivalent of uplink ports where the switch has uplink ability at a different speed than its normal ports. 100M ports and 1G uplink, 1G ports and fibre uplink, etc. –  Sirex Oct 18 '12 at 19:16

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