
Chapter 10. Statistics
10-30 IQ Probe User Manual 61200214L1-20
DBU Status
Current state of the incoming DBU circuit (only appears if a dial backup
card is installed).
Signal State
Current state of the DCE port (up or down).
Signal State Change
Number of changes in the signaling protocol state.
Signal Timeouts
Total T391 timeouts that have occurred since the last reset.
Signal Errors
Total signal frames received with PVC signaling protocol violations.
Frames In
Total received frames since last reset.
Frames Out
Total transmitted frames since last reset.
Errored Frames
Total errored frames received since last reset.
CRC Errors
Number of frames received with HDLC CRC violations.
Abort Frames
Total frames received without a closing flag.
Octet Align
Number of frames received with a bit count that does not fall on 8-bit
boundaries.
Port UA Time
Time in seconds the DCE port is unavailable for data delivery. This can
mean that the data link is down or in test, or that the PVC signaling state
is down.
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