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Line tab fields


Field Description
ESs
Errored Second (ES) is a second with one or more Coding Violations or one or more incoming defects, for example, SEF, LOS, AIS, or LOP.
SESs
Severely Errored Second (SES) is a second with x or more Coding Violations (CV), or a second with at least one or more incoming defects.

The value of x is defined for a given Bit Error Rate (BER) as outlined in Annex 50A of the IEEE 802.3ae specification1.
CVs
Coding Violations (CV) are Bit Interleaved Parity (BIP) errors that are detected in the incoming signal. CV counters are incremented for each BIP error detected.
UASs
Number of seconds that the interface is unavailable.
1 A BER of 10-6 corresponds to the default Line SES threshold of 9835.


See also


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