![](https://pdfstore-manualsonline.prod.a.ki/pdfasset/a/62/a6253af4-b1a9-4d23-b1e9-34436239c049/a6253af4-b1a9-4d23-b1e9-34436239c049-bg9b.png)
BXM T3/E3, 155, and 622 6-25
Fault Management and Statistics
Fault Management and Statistics, Trunk Mode
Compliant to Bellcore GR-253-CORE
Alarms:
• Loss Of Signal (LOS)
• Loss Of Pointer (LOP)
• Loss Of Frame (LOF)
• Loss Of Cell delineation (LOC)
• Alarm Indication Signal (AIS)
• Remote Defect Indication (RDI)
• Alarm Integration Up/down Count
Performance Monitoring:
• Performance monitoring provided for Line, Section and Path
• Bit Interleaved Parity (BIP) error detection
• Far End Block Error (FEBE) count
• Unavailable Seconds (UAS)
• Errored Seconds (ES)
• Severely Errored Seconds (SES)
• Header Error Checksum (HCS) monitoring
Statistics:
Process Monitoring for ATM Header Cell Processing
• Cells discarded due to Header Errors (LCN mismatch)
Miscellaneous ATM Layer Statistics
• Number of cell arrivals from port
• Number of cell arrivals with CLP = 1
• Number of cells transmitted to port
• Number of cells transmitted with CLP = 1