I am getting this error message on multiple routers and switches, i believe that the error is generated when someone/app tries to log onto the device with a SSH client that is not properly configured.  I have opened a TAC to confirm.

Once I ran the command "service unsupported-transceiver" gig 0/0/2 started working even tho this is a cisco SFP that worked in gig 0/0/0.

The interface  comes up fine. Router#sho ip int briefInterface              IP-Address      OK? Method Status                ProtocolGigabitEthernet0/0/0   unassigned      YES unset  up                    upGigabitEthernet0/0/1   unassigned      YES ...

How about the 24 port switch module for the 2911'sR: "SM-ES2-24: EtherSwitch SM L2 + 23 10/100 + 1 10/100/1000" I am looking for this stencil. oli