7

Do I still need a crossover cable to connect two PC's directly? (NIC <-> NIC)?

If not, then why was this needed in the past, and when was it used for this? Specifically, when did crossover cables stop being needed to directly connect 2 PCs?

closed as off-topic by Sven, TheCleaner, Chopper3, Jenny D, Dave M Mar 7 '14 at 14:41

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Questions must be relevant to professional system administration. Server Fault is dedicated to professional system and network administrators. End user and enthusiast questions are off-topic (contact your system administrator or hire a professional to help you out). Please see the Help Center for more information." – Sven, TheCleaner, Chopper3, Jenny D
If this question can be reworded to fit the rules in the help center, please edit the question.

  • 7
    Note: Cross-over cables only applied to 10 and 100Mb Ethernet. Gigabit sends and receives on all 4 pairs at the same time. – Chris S Mar 5 '14 at 14:36
  • Why is this off-topic? – Heinzi Oct 13 '16 at 8:56
  • @ChrisS, what you describe only applies to UTP cabling. Ethernet on fiber-optic cabling still requires a crossover cable between two like devices, even at gigabit speeds. – Ron Maupin Oct 11 '17 at 14:44
11

Most (all?) current devices have implemented ethernet auto mdix. The answer is simple: You don't need such cable.

  • but from when? from 10 years ago? – evachristine Mar 5 '14 at 11:22
  • @evachristine there is probably no border date.. – neutrinus Mar 5 '14 at 11:24
  • Then I will say about ~2005... according to google searches.. – evachristine Mar 5 '14 at 11:25
  • 1
    @evachristine I remember having to use on in the 90s. I think by the early 2000s most devices were Auto MDI-X. Then 1GbE took over and made the whole thing moot. – Chris S Mar 5 '14 at 14:44

Not the answer you're looking for? Browse other questions tagged or ask your own question.