Network measurement of the VMTP request-response protocol in the V distributed system
SIGMETRICS '87 Proceedings of the 1987 ACM SIGMETRICS conference on Measurement and modeling of computer systems
Measured performance of an Ethernet local network
Communications of the ACM
Ethernet: distributed packet switching for local computer networks
Communications of the ACM
Analysis of video conferencing on a token ring local area network
MULTIMEDIA '93 Proceedings of the first ACM international conference on Multimedia
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This paper is a study based on measurements of network activities of a major site of Digital's world-wide corporate network. The study yields two kinds of results: (1) DECnet protocol performance information and (2) DECnet session statistics. Protocol performance is measured in terms of the various network overhead (non-data) packets in routing, transport and session layers. From these protocol performance data, we are able to review how effective various network protocol optimizations are; for example the on/off flow control scheme and the delayed acknowledgement scheme in the transport protocol. DECnet session statistics characterizes the workload in such a large network. The attributes of a session include the user who started it, the application invoked, the distance between the user and the application, the time span, the number of packets and bytes in each direction, and the various reasons if a session is not successfully established. Based on a large sample of such sessions, we generate distributions based on various attributes of sessions; for example the application mix, the visit count distribution and various packet number and size distributions.