I have a Cisco 3640 with a hssi card connected to a adtran T3SU 300. The hssi card is receving lots of input erros and CRC errors. The DSU is receving errors aswell on the local side.
My telco tests clean to a loop i Put infrom of the DSU and behind the DSU. So it seems to be an issue with the DSU talking with the HSSI card. I have found serveral threads on the net about this issue but no resloution. Any thoughts?