This document helps to resolve the issue when MIC is not coming online after installation.

MIC is not showing online after installation.

1. If FPC is being power on, any MIC already inserted will be powered on too.
   
   
2. If FPC has been power on already, and MIC is doing hotswap or MIC is plugged into an empty slot, then you need to using CLI to power on the new MIC, or using button to power it on.
   
   The CLI command is " request chassis mic fpc-slot xxx mic-slot xxx on/off".
   
   

MIC 0 is not listed under slot 1:

[email protected]> show chassis fpc pic-status    
Slot 1   Online       MPC3E NG PQ & Flex Q                          
Slot 2   Online       MPC5E 3D 24XGE+6XLGE                          
 PIC 0  Online       12X10GE SFPP OTN

Initiate MIC slot 0 online using below cli command:

[email protected]>request chassis mic mic-slot 0 fpc-slot 1 online

fpc 1 mic 0 online initiated, use "show chassis fpc pic-status 1" to verify

We can see PIC 0 listed under fpc slot1:

[email protected]> show chassis fpc pic-status    
Slot 1   Online       MPC3E NG PQ & Flex Q 
 PIC 0  Online       10x 1GE(LAN) SFP              
Slot 2   Online       MPC5E 3D 24XGE+6XLGE                          
 PIC 0  Online       12X10GE SFPP OTN

3. If MIC is still not listed in above command, then check "show chassis alarm". There should not be any active alarms present for that FPC.