This attribute indicates the total number of C-Bit Parity Errored
Seconds (CES). A CES second is declared for second intervals
containing one or more CCVs or when one or more SEF (Severely
Errored Frame) or AIS (Alarm Indication Signal) defects.
CES counting is inhibited for second intervals where C-Bit
Unavailable Seconds (CUAS) are counted.