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New Member

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

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


  • LAN Switching and Routing
1 ACCEPTED SOLUTION

Accepted Solutions
VIP Super Bronze

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

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

5 REPLIES
VIP Super Bronze

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

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

New Member

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

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

VIP Super Bronze

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

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

New Member

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

Thanks Raza

appreciated man

that was the problem

VIP Super Bronze

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

Glad to help Ashraf.

Thanks for the rating!

Reza

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