Hitachi Energy
Recommendation ITU-T G.826
Recommendation G.826 defines error performance parameters for networks supporting paths which are independent of the physical layer.
Performance Measurement results are divided into Events and Parameters:
Events:
Errored Block (EB),
Errored Second (ES),
Severely Errored Second (SES),
Background Block Error (BBE),
Unavailable Time (UT).
Parameters:
Errored Second Ratio (ESR),
Severely Errored Second Ratio (SESR),
Background Block Error Ratio (BBER).