12-04-2009 10:01 PM - edited 03-06-2019 08:50 AM
Cisco Catalyst 2940-8TF, there are two fiber option 1. mtrj interface 2.sfp interface.
I have nothing plugged into the sfp gig port. The mtrj port always says disabled, but I can't seem to enable it. Why?
12-05-2009 01:35 AM
Have you told the switch that it is to use RJ45 and not the SFP slot for the interface?
I'm not familiar with the model in question but usually when you have multiple media types for one interface use need to set the media type, in this case:
int gig 0/1
media-type rj45
12-05-2009 09:32 AM
I agree it's usually a media type command , you have to choose one or the other , both cannot be live.
12-11-2009 01:39 AM
Hi
Have You tried to reload the switch.
What I can remember, if there is an sfp installed when switch boots up, it will use sfp port and disable mtrj.
The mtrj will be disabled even if You remove the sfp. If this is Your case, You have to reboot the switch
/Mikael
04-21-2010 09:27 AM
I had the opposite problem. I used the MTRJ port and then tried to use the SFP which showed disabled. Rebooting the switch worked. Thanks for the tip. Strange that you can't use the media-type command!
12-11-2009 02:26 PM
Hi David,
I've got this model and I don't recall seeing a "media type" command for the SFP/MTRJ port.
During the bootup, can you check if the POST is successful or fail?
Also try the command "sh post".
If worst-comes-to-worst, just RMA the darn thing.
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