Chapter 5. Statistics

Figure 5-5. Network Port Statistics 24-Hour History Screen

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.

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ADTRAN T3SU 300 user manual Bit Severely Errored Seconds Cses, Bit Errors FBE, Bit Errors MBE