Hello,
On 6500 VSS, we have every day alarmes like that ( seel attach doc)
I.e.: DFM say "transciever down" , allthoug the sh int on the routeur indicates "interface up"
On the log , there is nothing about this transciever.
LMS is 3.1 and DFM is 3.1.3
Regards,
Michel Misonne