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C3KX-NM-10G not recognizing 10G port connections

Tom Ng
Level 1
Level 1

I have a WS-C3750X-48T-S switch with module C3KX-NM-10G installed.  In slots 2 and 4 I have 2 twinax cables running for 10g port connection. When I check the connections the switch does not recognize the 2 as connected, here is the interface status:

Gi1/1/1   UNUSED             disabled            auto   auto Not Present

Gi1/1/2   UNUSED             disabled            auto   auto unknown

Gi1/1/3   UNUSED             disabled            auto   auto Not Present

Gi1/1/4   UNUSED             disabled            auto   auto unknown

Te1/1/1   UNUSED             notconnect        full     10G Not Present

Te1/1/2   UNUSED             disabled            full     10G Not Present

Does anyone have a clue whether it maybe a configuration issue or perhaps it maybe a physical issue?

Switch model: WS-C3750X-48T-S

Module: C3KX-NM-10G

Transceiver: Panduit Corp - PSF1PXA2MBL

Thanks,

Tom J Ngo

5 Replies 5

Marvin Rhoads
Hall of Fame
Hall of Fame

Your switch is not recognizing the 3rd party transceiver. You may be able to work around with "service unsupported transceiver" command. Using a compatible Cisco transceiver would work.

Sent from Cisco Technical Support iPad App

I ran the command and the same interface status shows up. I don't even get an error message about the 3rd party SFP in the first place for me to bypass the unsupported transceiver.

So the problem had nothing to do with the physical connections. I changed the switchport mode from access to trunk link and now everything is connected.

Im running into this same issue.

Switch model: WS-C3750X-48T-S

Module: C3KX-NM-10G

What version of IOS are you running?

Also the Panduit cable I am using is PSF1PXA3MBU, not sure if that makes a difference

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