Chapter 33 xDSL Statistics
VMG/EMG/AM/DM/GM Series User’s Guide
425
Attainable Net
Data Rate
These are the highest theoretically possible transfer rates at which the port could send and
receive payload data without transport layer protocol headers and traffic.
xDSL Counters
Downstream These are the statistics for the traffic direction coming into the port from the service provider.
Upstream These are the statistics for the traffic direction going out from the port to the service provider.
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.
FailedFastRetr This is the number of failed fast retraining attempts.
Table 158 System Monitor > xDSL Statistics (continued)
LABEL DESCRIPTION
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