ADTRAN MX2800 - Figure 5-6. DS3 Performance Parameters (24 Hour History)

Chapter 5. Statistics
5-6 MX2800 User Manual 61200290L1-1
C-Bit Coding Violations (CCV)
In C-bit parity mode, this is a count of coding violations reported
via the C-bits or the number of C-bit parity errors that have
occurred.
Figure 5-6. DS3 Performance Parameters (24 Hour History)
C-Bit Errored Seconds (CES)
Number of seconds with one or more CCVs, one or more
out-of-frame defects, or a detected incoming AIS. This count is not
incremented when UASs are counted.
C-Bit Severely Errored Seconds (CSES)
Number of seconds with 44 or more CCVs, one or more
out-of-frame defects, or a detected incoming AIS. This count is not
incremented when UASs are counted.
F-Bit Errors (FBE)
Number of times an F-bit framing error has occurred.
M-Bit Errors (MBE)
Number of times an M-bit framing error has occurred.
Far End Block Errors (FEBE)
Number of times the far-end unit has received a C-parity or
framing error.