User's Manual Part 2

SCP-LPS20x-011-012-01H December 20, 2004
122 ADC Telecommunications, Inc.
LOSW Errors
A LOSW occurs when at least three consecutive received frames contain one or more errors in the framing bits.
CRC Errors
A CRC error is declared when the CRC bits generated locally on the data in the received xDSL frame do not match
the CRC bits received from the transmitter.
ES Count
An ES count is incremented when one or more CRC errors and/or one or more LOSW errors are declared.
SES Count
A SES count is incremented when 50 CRC errors orone or more LOSW errors are declared.
UAS Count
A UAS count is incremented for each second in which the xDSL line is unavailable. The xDSL line becomes
unavailable at the onset of 10 contiguous SESs. The 10 SESs are included in the unavailable time. Once
unavailable, the xDSL line becomes available at the onset of 10 continguous seconds with no SESs. The 10
seconds with no SESs are not included in the unavailable time.
ATM PVC STAT PARAMETERS
User PVC
Indicates the user VPI, VCI, Type of service, and encapsulation method. Also shows the total transmitted and
received packets since start up or the last time the counters were cleared.
Management PVC
Indicates the management VPI, VCI, Type of service, and encapsulation method. Also shows the total transmitted
and received packets since start up or the last time the counters were cleared.
Total Tx Cells
Inidcates the total amount of transmitted cells for the user and management PVC since startup or the last time the
counters were cleared.
Total Rx Cells
Inidcates the total amount of received cells for the user and management PVC since startup or the last time the
counters were cleared.
Total Rx HEC Errored Cells
Indicates the total amount of received cells that have HEC errors.
Total Rx Dropped Cells
Indicates the total amount of dropped cells in the receive direction.