3560X C3KX-NM-10G (SFP Link is not working)

[ashraf1891]

Dears

I am trying to connect tow 3560X using a fiber cable (MM)

I have C3KX-NM-10G in both switches (4 ports module)

I have GLC-SX-MM in both switches (connected to G1/1)

both switches are able to see & recognize the NM as well as the SFP

Fiber Cable is tested

Fiber Patch Cord also tested

both ports configured as a trunks

but also the switches are not able to see each other (even when I removed the trunks configuration from both of them)

CDP neibour is showing nothing

no links & no LED blink in any switch

both switches are running c3560e-universalk9-mz.122-55.SE3 IOS

NOTE: there is no any other configuration in both switches

your fast feed back is highly required & appreciated

[Reza Sharifi]

Can you try reversing your LC patch cord strand on one side of the cable and try again.  This module comes with 2 10Gig SFP+ and 2 regular SFP for 1Gig.  Can you make sure that both sides are connected to the proper 1Gig ports?

HTH

[ashraf1891]

Dear Raza

Thanks for your prompts response

yes both sides are connected to the 1Gb Ports

for the cable reversing the switches are located in two differnt cabinets

where a fiber cable is terminated in a fiber patch panel (SC Connector) (both Cabinets)

& I am connecting both switches to the FPP using LC-SC fiber patch cord

NOTE: all fiber is very well tested

[Reza Sharifi · Accepted solution]

Hi,

Since it is easier to reverse SC type connectors try reversing one of them from the patch panel and test again.

You maybe connecting RX on one site to a TX on the other side.

HTH

[ashraf1891]

Thanks Raza

appreciated man

that was the problem

[Reza Sharifi]

Glad to help Ashraf.

Thanks for the rating!

Reza