SFP Ports not coming UP

[supportahm]

Dear Team,

I have CBS350 24P 4g switch , switch firmware is latest ( 3.4.0.17 ) and there are 4 SFP ports are available and i used MGBLX1 module , when i tried module connect show logs as , 

11-Mar-2024 07:23:44 :%NSFP-I-SFPGibicDetected: gi28 SFP port is present, module type - 1000BASE-LX

but in show interface status link state showing down.

also refer this :

switch2f5cf7#sh fiber-ports optical-transceiver por
switch2f5cf7#sh fiber-ports optical-transceiver

Port Temp Voltage Current Output Input LOS
[C] [Volt] [mA] Power Power
[mWatt] [mWatt]
----------- ------ ------- ------- ------- ------- ---
gi25 N/A N/A N/A N/A N/A N/A
gi26 N/A N/A N/A N/A N/A N/A
gi27 N/A N/A N/A N/A N/A N/A
gi28 N/A N/A N/A N/A N/A N/A

so what is this i can not find out because there is no any error of unsupported SFP.

also find attached snap of optical module status .

Waiting for your reply..

Thanks & Regards

Dhaval

[marce1000]

     - Are  you using compatible SFPs according to : https://tmgmatrix.cisco.com/?npf=946 ?

 M.

[supportahm]

Dear Sir,

Yes , we have CBS350-24P-4G model and we have as per the matrix MGBLX1 module , and also firmware is latest .and there is no logs related to unsupported SFP module.

Waiting for your reply..

Thanks & Regards

Dhaval 

[Tom Randstrom]

It would seem the SFP module you had does not support Digital Optical Monitoring (DOM).  The data sheet for the MGBLX1 modules does not indicate DOM support. 

[supportahm]

Dear Team,

We have also try with Syrotech company module but still SFP port not getting up , link status showing down.

[balaji.bandi]

as for as i see your SFP GUI recognised that means SFP oh technically speaking,

the Port not coming - it all depends on what device connected.

You can also Loop the Fibre TX and RX see the port come up for testing.

what is other end ?

you did not mentioned what cable you using MM or SM ?