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Browse Prior Art Database

Real Time Error Rate Thresholding On Remote Commumications Lines

IP.com Disclosure Number: IPCOM000102904D
Original Publication Date: 1990-Mar-01
Included in the Prior Art Database: 2005-Mar-17
Document File: 1 page(s) / 41K

Publishing Venue

IBM

Related People

Johnson, CM: AUTHOR [+4]

Abstract

The described method provides a real time facility, via a thresholding of communications errors, to inform a user of potential remote communications line problems. The thresholding is done either on an actual count of errors or, more uniquely, on error rates.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 97% of the total text.

Real Time Error Rate Thresholding On Remote Commumications Lines

      The described method provides a real time facility, via a
thresholding of communications errors, to inform a user of potential
remote communications line problems.  The thresholding is done either
on an actual count of errors or, more uniquely, on error rates.

      When thresholding based on rate, a user sets threshold values
for various error counts per N protocol data units sent or received.
The protocol driver tasks in the remote communications I/O processor
compare the threshold values set by the user against the actual count
of errors. If this actual error count is equal to the user's
threshold value and the number of protocol data units is not
exceeded, then the host system is informed of the occurrence.

      When thresholding based on actual counts, the user sets
threshold values for the various error counts, but these counts are
not referenced to a specific number of protocol data units.  The
protocol driver tasks in the remote communications I/O processor
inform the host when the user specified threshold values are equal to
the actual counts. Traditionally, this method of thresholding is
used.

      Thresholding based on rate allows a user to specify a tolerance
level on utilization of his data bandwidth.  When thresholding based
on count, there are times when a threshold is exceeded only because
the line has been running a long time. In these cases no real problem
exists...