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New Member

Help about SFP module

Hi all,

I bought two Cisco 3560X-24T switches, both wit network module and SFP module for fiber connection.

During the power on process all the light of the network module are on, so this should means that the module is operating.

I've no alarm on led and no alarm on web console.

I can see the SFP module on console (web and telnet) and I can enable or disable it correctly, and from log I can see that the module is detected properly (100Mb) and the port is auto configuring.

Now the problem, after connecting the fiber patch both switch show that the link is down. So I tried to change the patch but same results. So after I looked at SFP (I've 4 for each switch) and none of the 8 SFP is emitting light.

Do you've any suggestion?

Many thanks in advance to all that will answer.

Kind regards

New Member

Can you post the output from

Can you post the output from 'show inventory'?