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New Member

Cisco 4402 Lan controller not recognizing GLC-T gbic

I recently purchased a used cisco 4402 that I want to use for lab work.

The problem is that I cannot get the GBIC port to work. I first believed it was the gbic knowing they go bad so I went out and purchased a brand new GLC-T gbic for a copper connection over to my 3560 switch. I know the switchport works and have testing it in both trunk and access mode but no matter what I try to do the connection isn't coming up.

I have a cross over cable between the WLC and the switch. I have the switch in trunk mode.

I went through the basic configuration settting up the controller without lag.

When I do a show inventory I do not see the gbic present.

How can I troubleshoot the port itself to figure out if the port is bad?

4 REPLIES
Hall of Fame Super Gold

Cisco 4402 Lan controller not recognizing GLC-T gbic

What firmware is the 4400 running?

New Member

Cisco 4402 Lan controller not recognizing GLC-T gbic

From the command line: show boot - primary boot image Code 6.0.202.0 (active)

backup boot image: 4.1.185.0

VIP Purple

Cisco 4402 Lan controller not recognizing GLC-T gbic

Also make sure you are connecting these ports to 1Gbps ports of your 3560 (not 100Mbps or FE ports).

Post output of "show port summary" of your WLC when WLC connected to your 3560 Gig port via straigtthrough cable.

HTH

Rasika

**** Pls rate all useful responses ****

Re: Cisco 4402 Lan controller not recognizing GLC-T gbic

With the WLC you don't see the gbic in a show inventory.

And from the WLC to a switch you don't use a crossover cable, you use a straight through cable

Sent from Cisco Technical Support iPhone App

HTH, Steve ------------------------------------------------------------------------------------------------ Please remember to rate useful posts, and mark questions as answered
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