EXFO FTB-8500 Series for FTB-500 User Manual
Page 377
Advertising
Common Tab
Ethernet and Fibre Channel Application
363
Performance Monitoring (PM)
SES (Severely Errored Second)
For G.821: Gives the number of seconds within which a bit error ratio
is 10
-3
, or during which Loss Of Signal (LOS), Link down, or Pattern
Loss is detected.
For G.826: Gives the number of seconds within which EB count is
SES threshold (30%), or at least one NE defect occurred.
BBE (Background Block Error) (G.826 only): Gives the count of Errored
Block not occurring as part of a SES. A Block corresponds to a
complete Ethernet/Fibre Channel frame.
AS (Available Second): Gives the count of the seconds corresponding
to the periods of time within which no SES errors occurred for at least
10 consecutive seconds.
Advertising
This manual is related to the following products: