NS3000/iX Operations and Maintenance Reference Manual (36922-90039)

178 AppendixA
LINKCONTROL Command
NS 3000/iX LAP-B Link Statistics
Data Frames Sent. The Data Frames Sent field displays the total
number of transmitted data frames.
Data Frames Received. The Data Frames Received field displays the
total number of received data frames.
Aborted Frames Sent. The Aborted Frames Sent field displays the
number of frames which were aborted before they were received.
Normally, this number should be quite low (below 3% of the total
number of frames sent). A large number could point to a noisy line or a
weak or bad clock signal sent by a modem. If this value becomes larger
than 3% of the total number of frames sent, and you feel that network
performance is being affected, contact your HP representative.
Aborted Frames Received. The Aborted Frames Received field
displays the number of frames which were aborted after they were
received. Normally, this number should be quite low (below 3% of the
total number of frames received). A large number could point to a noisy
line or a weak or bad clock signal sent by a modem. If this value
becomes larger than 3% of the total number of frames received, and you
feel that network performance is being affected, contact your
HP representative.
DSR Losses. The DSR Losses field displays the number of times the
PSI detected a temporary loss of the Data Set Ready (DSR) signal on
the cable. On most lines, this will remain at a value of zero, although
some modems will periodically drop signals for very short intervals.
Oversized Frames Received. The Oversized Frames Received field
displays the number of frames received that exceed the maximum
configured buffer size as configured in the Link screen of NMMGR. A
number other than zero in this field indicates that the remote buffer
size configuration is greater than the local buffer size configuration.
One or both configurations must be modified so that the two buffer sizes
are identical.
CTS Carrier Losses. The CTS Carrier Losses field displays the
number of times the PSI detected a temporary loss of the Clear to Send
(CTS) signal on the cable. On most lines, this will remain at a value of
zero, although some modems will periodically drop signals for very
short intervals.
Receive Overruns. The Receive Overruns field displays the number of
times that the PSI card had to discard a frame because the PSI card
could not process the data as quickly as it arrived. A number in this
field that is greater than 3% of the total number of received frames
indicates a possible problem with the PSI card. If this number
continues to increase, contact your HP representative.