MDI on newer switches

Answered Question
Feb 10th, 2010

Hi,



Are there any advantages to still using crossover cables between newer switches which support mdix auto?


Thanks,


Carlos

Correct Answer by Jon Marshall about 7 years 2 weeks ago

insomniacgames_nc wrote:


is it best practices to hard code speed and duplex on

switch to switch ports to eliminate potential problems in auto-negotiation?



Thanks,


Carlos


Not necessarily. Gigabit is often best left to auto-negotiate. 10/100 interconnects in the past i have tended to hardcode speed/duplex. But obviously if you are using mdix you can't anyway.


Jon

Correct Answer by Jerry Ye about 7 years 2 weeks ago

Yes. If you want to hard code the duplex and speed, you will need to use crossover cable. Hence, hard code duplex and speed will turn off auto MDIX.


HTH,

jerry

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Correct Answer
Jerry Ye Wed, 02/10/2010 - 10:30

Yes. If you want to hard code the duplex and speed, you will need to use crossover cable. Hence, hard code duplex and speed will turn off auto MDIX.


HTH,

jerry

insomniacgames_nc Wed, 02/10/2010 - 11:09

is it best practices to hard code speed and duplex on

switch to switch ports to eliminate potential problems in auto-negotiation?



Thanks,


Carlos

Correct Answer
Jon Marshall Wed, 02/10/2010 - 11:51

insomniacgames_nc wrote:


is it best practices to hard code speed and duplex on

switch to switch ports to eliminate potential problems in auto-negotiation?



Thanks,


Carlos


Not necessarily. Gigabit is often best left to auto-negotiate. 10/100 interconnects in the past i have tended to hardcode speed/duplex. But obviously if you are using mdix you can't anyway.


Jon

insomniacgames_nc Wed, 02/10/2010 - 12:46

I personally do not use MDI and use crossover patches anyway since they will work on any switch. I also color code them so it's easier to find problems when a trunk goes down.


I was just curious if MDI is best to stay away from if given the choice.


Thanks


Carlos

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