NDLI: Performance analysis of a UNIX system based OSI X.25 implementation

Content Provider	IEEE Xplore Digital Library
Author	Ko, D.P.
Copyright Year	1988
Description	Author affiliation: AT&T Bell Lab., Holmdel, NJ, USA (Ko, D.P.)
Abstract	The packet-level performance of a Unix-based X.25 network interface for an AT&T computer is described. The interface is compatible with CCITT and ISO 1980/84 link and packet level protocols. The X.25 link and packet level protocols are provided on the intelligent serial controller (ISC) board. Using specific software tools, basic performance data were collected and analyzed, so that a spectrum of performance characteristics would be available for the interface. Throughput, latency, and CPU utilization data were derived. These performance characteristics can be used by network administrators to specify packet size and line speed for specific applications. The results indicate that the AT&T X.25 network interface provides higher throughput at 19.2 kb/s than at 9.6 kb/s, and this higher throughput is sustained over a larger number of virtual circuits. Further, increasing packet size from 128 to 512 bytes provides throughput performance approaching 85% of the line capacity.<>
Starting Page	131
Ending Page	135
File Size	362228
Page Count	5
File Format	PDF
DOI	10.1109/ICC.1988.13548
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1988-06-12
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Performance analysis Open systems Throughput Network interfaces Protocols Computer interfaces Computer networks ISO standards Software tools Delay
Content Type	Text
Resource Type	Article

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