Link statistics:
TXIOK TXIER RETXI RXIOK RXIER
Current value
Accumulated value
RXINV RXFRM TXFRM RXLST FRMRT
Current value
Accumulated value
CTSER DSRUP DSRDN DSRER IDLTO
Current value
Accumulated value
FRMRR DMAUR DMAOR TXERR RXOVR
Current value
Accumulated value
EXPLANATION: SDLC link services maintain counts of data traffic and error events that are logged whenever a counter "wraps," or whenever a connection through the link service terminates. There are counters for each of 20 types of event. Current counters show the values since the statistics were last logged. They are reset to zero after being logged. Accumulated counters are total counts kept from the time the SDLC link service was started.
The counters have the maximum value of 32,767. When any "current" counter reaches this value, the counters are logged and reset. "Accumulated" counters are frozen when they reach the maximum.
The individual counters are as follows:
TXIOK Information frames successfully transmitted
TXIER Information frames not successfully transmitted
RETXI Re-transmitted information frames
RXIOK Information frames successfully received
RXIER Frames not successfully received
RXINV Invalid frames received
RXFRM Total number of frames received
TXFRM Total number of frames sent
RXLST Frames received and then discarded
FRMRT 'FRMR' frames transmitted
CTSER Clear to Send drops during transmission
DSRUP DSR up before switched connection attempted
DSRDN No DSR before switched connection timeout
DSRER DSR lost before connection established
IDLTO Link inactivity timeout
FRMRR 'FRMR' or 'DM' received
DMAUR Transmitter interrupts missed
DMAOR Frames received longer than the configured max
TXFRR Failed to transmit a frame
RXOVR Receiver interrupts missed
The counts are also sent as an alert NMVT (subtype 0x0025) on the NetView management connection, if it is active. See message #540.
ACTION: No action is necessary.