SFP not connected from one side

[polsmurad31763]

Hi

I have a strange problem , i have connection between 2 switches 9200L and 3750X with SFP GLC-LH-SMD

and on the 9200L side shows Connected and on the other side (3750x) shows Not connected

[marce1000]

 - Make the connection again, and then check the logs on both platforms ,see if you can find anything useful

 M.

[balaji.bandi · Accepted solution]

how is these connected direct patch cable ? or you have a provider involved to connect?

GLC-LH-SMD  (what kind of patch cable or cable you using to connect both ?)

post below output  both the side

show run interface gi x/x

show interface gi x/x 

suggest try no negotiation should work

[polsmurad31763]

 no negotiation on both switches worked for me thank you very much 

[Leo Laohoo]

Connected on one side but "not connected" on the other?  

I have seen this before.  
Test and make sure the entire length is not broken.  The description described is due to one of the fibre pair is broke.  

[balaji.bandi]

@Leo Laohoo  i agree here, since you getting circuit loop you also see one side UP/UP.