Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 5352
  • Last Modified:

MDIX on a 3550 Switch

How do I turn off or set auto MDIX on a 3550 series cisco switch?
0
cdeons
Asked:
cdeons
  • 2
1 Solution
 
raymondzwartsCommented:
By default auto MDIX is off. Also Auto MDIX is not supported on 1000 BASE-SX or -LX SFP interfaces.

To turn Auto MDIX on on an interface use this (yes you need to set speed and duplex to auto also):

Switch# configure terminal
Switch(config)# interface gigabitethernet1/0/1
Switch(config-if)# speed auto
Switch(config-if)# duplex auto
Switch(config-if)# mdix auto
Switch(config-if)# end

To turn it off:

Switch# configure terminal
Switch(config)# interface gigabitethernet1/0/1
Switch(config-if)# speed <100/1000/auto>
Switch(config-if)# duplex <half/full/auto>
Switch(config-if)# no mdix auto
Switch(config-if)# end

Regards,
Raymond Zwarts
0
 
typertecCommented:
On a 3550, you don't have the mdix auto command.
0
 
raymondzwartsCommented:
yes. sorry about that.

mdix is not supported on 3550
0

Featured Post

Become an Android App Developer

Ready to kick start your career in 2018? Learn how to build an Android app in January’s Course of the Month and open the door to new opportunities.

  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now