We recently migrated our Abis traffic of a microcell from microwave to fiber optic. As a result SDCCH mean holding time has increased by 2 seconds. Why has it happened and how it can be diagnosed and brought back to normal. It is source of concern because fiber is supposed to perfrom much superior and faster.
Secondly is it because of Abis media transfer or could it be some other factor(TRX malfunctioning) that caused this increase. Apparantly it happened right after Abis transfer.