ZyXEL Communications AX Series User Manual page 462

Table 176 System Monitor > xDSL Statistics (continued)
LABEL DESCRIPTION
FEC This is the number of Far End Corrected blocks.
CRC This is the number of Cyclic Redundancy Checks.
ES This is the number of Errored Seconds meaning the number of seconds containing at least one
error block or at least one defect.
SES This is the number of Severely Errored Seconds meaning the number of seconds containing 30%
or more error blocks or at least one defect. This is a subset of ES.
UAS This is the number of UnAvailable Seconds.
LOS This is the number of Loss Of Signal seconds.
LOF This is the number of Loss Of Frame seconds.
LOM This is the number of Loss Of Margin seconds.
Retr This is the number of DSL retraining count in BRCM DSL driver.
HostInitRetr This is the number of the retraining counts the host initiated.
FailedRetr This is the number of failed retraining attempts.
Chapter 32 xDSL Statistics
AX/DX/EX/PX Series User's Guide
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