fiber ports on 2950

[s99089531]

we have two 2950 ports that we are trying to connect with the 100Base-FX ports. If we connect to a media convertor the port comes on. plugging the switches directly into each other does not turn on the ports. i have swapped the fibers around, so it is not the connection. wading through cisco's docs only added to the confusion. what is UDLD? it didn't change anything.
we only want to test some equipment on the ports to see if it is compatible. why can't the switches pull each others ports up?

 

[vipergg]

I can't think of a reason why you shouldn't be able to connect the fiber ports as long as they are admin up in the config . UDLD should not have an effect , this means unidirectional datalink detect and is used to prevent one sided fiber connections so that traffic does not get blackholed if you lose half the connection .

 

[s99089531]

thanks for the reply.
what are the commands to get them admin up?

 

[s99089531]

i should have added that the 'no shutdown' had no effect.
the utp ports all connect between the two switches.
the switches were virgins when we got them, and we reset to the factory default to clear our ham fisted attempts at getting it to work.

 

[Cluebird]

What GBICs are you using?

 

[rrowland]

I had some trouble getting the link lights to come up when connecting a cisco switch to a HP Procurve 4000M switch. I had to configure the Cisco GBIC port to "speed nonegitiate" before it would work.