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Appendix A – Statistic Counters Description
OmniBAS LCT
User Manual - Edition 1.0
PWE3 TDM Counters
The following table describes the statistic counters concerning a selected PWE3
TDM connection. PWE3 TDM counters are displayed in the PWE3
Connections Statistics tabbed sheet (1):
Counter
Description
Trans Rx Errors Overrun
Not used
Trans Tx Errors Underrun
Number of invalid buffers received from PSN side.
Ingress Rx Empty Fbp
Not used
Ingress Rx Valid Packets
Number of received (from TDM side) packets
forwarded to PSN side.
Tdm2Psn Forwarded Packets
Number of successfully forwarded packets to PSN
side.
Tdm2Psn Fbp Drop Packets
Not used
Tdm2Psn Mtu Drop Packets
Not used
Tx Queue Drop Packets
Number of packets dropped due to a congestion in
the transmit queue on PSN side.
Egress Tx Valid Packets
Number of packets successfully transmitted to TDM
side.
Egress Tx Dummy Packets
Not used
Egress Tx Buffer Underrun
Not used
Egress Tx Underrun Data
Unit
Number of times that transmit underrun occurred
due to no packets received from PSN side, so no
Rx buffers available exist to handle the Tx requests
to TDM side.
Psn2Tdm Forwarded Packets
Number of successfully forwarded packets to TDM
side.
Psn2Tdm Fbp Drop Packets
How many times received packets were rejected
due to no available buffers on TDM side.
Psn2Tdm Out of Window
Packets
Not used
Buffer Overrun Dropped
Packets
Not used
Psn2Tdm Window Switchover
Not used
Psn2Tdm Buffer Overrun
Events
Not used
Psn2Tdm Stray Packets
Not used
Psn2Tdm Malformed Packets
Not used
Psn2Tdm Cw AIS Drop
Packets
Not used
Continued on next page
(1)
Open the Performance Monitor window of a modem, click the PWE3 tab and then click the
button. In the Connection List window that appears, select the PWE3 TDM connection you want. The
corresponding statistic counters appear in the PWE3 Connections Statistics tabbed sheet.
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