10G SFP no link on Catalyst 1200

[gorankarlsson]

Hi everyone,

I have two Catalyst C1200-48T-4X with SFP-10G-LR each.

Transceivers are recognized as they should but we get no link. We have checked the connection, administrative state is up, each switch/SFP is transmitting light and transceivers are recognized in both ends. Inserted in ge49/te1 slot.

We have verified with another switch brand and with similar SFP+ transceivers, no problem, link goes up. Optical values very good.

Anything I can missed? Are there differences between SFP slots? Anything else?

[marce1000]

 - Have you checked if the SFP model is compatible with the switch according to :
                                                                              https://tmgmatrix.cisco.com/

 M.

[gorankarlsson]

No, C1200 doesn´t show up with any 10G SFPs in that list. But Regarding to data sheet Cisco Catalyst 1200 Series Switches Data Sheet - Cisco, SFP-10G-LR is supported in C1200-48T-4X (SFP+).

[marce1000]

 - Hm , normally  https://tmgmatrix.cisco.com/?npid=6094  is kind of authoritative ; from there only https://copi.cisco.com/?tpid=141 , is listed for 10G speed. If opinions vary , contact TAC , 

 M.

[gorankarlsson]

Thanks, I have contacted TAC and asked about confirmation regarding compatibility.

[marce1000]

 - Ok , good to do : if you get any feedback , you may want to share here ; for future references and added value community content , 

 M.

[gorankarlsson]

I got the respond from TAC that the datasheet is correct, puh so the search for a solution goes on.

[marce1000]

- Check software version on the devices , use latest advisory or try
utmost latest release , if there is still a no go with an advisory release,

M.