Description: This variable indicates the port status. It is a bit map represented as a sum; therefore it can represent multiple failures. For all ATM boards, except the ASE (ATM Switching Element) board, the bit positions are listed below. Errors followed by an asterisk apply to ASE boards.

1 : adnAeiPortOOS* out-of-synchronization ATM Electrical Interface 4 : adnAeiPortNFOF* network FIFO overflows 8 : adnAeiPortIEMRAMP BGIEM chip RAM parity errors 16 : adnAeiPortCECH* corrected errors in cell header 32 : adnAeiPortUCECH* uncorrected errors in cell header 64 : adnAeiPortCRCMA1 CRC errors on payload field of MA1 (Active Maintenance type 1) cells 128 : adnAeiPortCRCSIC CRC errors on payload field of SIC (Self Identified Cell) cells 256 : adnAeiPortNPE* parity errors on payload 4096 : adnAeiPortNMA1* no active maintenance cell received 16384 : adnAeiPortEMA1* error active maintenance cell received 131072 : adnAeiPortNSFOF network signalling FIFO overflow 262144 : adnAeiPortNFWF network FIFO write failure 524288 : adnAeiPortSFWF signalling FIFO write failure 1048576 : adnAeiPortNSFRF network signalling FIFO read failure 4194304 : adnAeiPortUSFRF user signalling FIFO read failure 8388608 : adnAeiPortUFWF user FIFO write failure 16777216 : adnAeiPortUSFOF user signalling FIFO overflow 33554432 : adnAeiPortNICI* cells received on non-active ICI (Internal Communication Interface) 67108864 : adnAeiPortNCRC CRC errors detected on network side 134217728 : adnAeiPortNAAL* AAL (ATM Adaptation Layer) sequence error on network side 268435456 : adnAeiPortUCRC* CRC errors detected on user side 536870912 : adnAeiPortUAAL AAL sequence error on user side

For the ASE (ATM Switching Element) board, there are specific defects corresponding to the following bit positions :

2 : adnAeiPortLOS loss-of-synchronization AEI 512 : adnAeiPortRTAG error in routing tag data 1073741830: adnAeiPortURC unrouted cells

N.B.: This variable is significant when the operational state of the port is disabled. When there is no port error, this variable has the value 0.