802.5 PRIORITY MECHANISM IN HARD REAL-TIME RMS APPLICATIONS

Authors
SANTOS J GASTAMINZA ML OROZCO J MATRANGOLO C
Citation
J. Santos et al., 802.5 PRIORITY MECHANISM IN HARD REAL-TIME RMS APPLICATIONS, Computer communications, 17(6), 1994, pp. 439-442
Citations number
13
Categorie Soggetti
Computer Sciences","Computer Science Hardware & Architecture","Computer Science Software Graphycs Programming
Journal title
Computer communications → ACNP
ISSN journal
01403664
Volume
17
Issue
6
Year of publication
1994
Pages
439 - 442
Database
ISI
SICI code
0140-3664(1994)17:6<439:8PMIHR>2.0.ZU;2-A
Abstract
The 802.5 Token Ring protocol is firmly established as an internationa l standard. In this research note, its priority mechanism is analysed in the context of real-time environments, and it is shown that althoug h unable to implement a strict rate monotonic discipline, it is still schedulable if certain (proven) necessary and sufficient conditions, e xpressed in the form of inequalities, hold. These conditions also allo w the treatment of problems related to coarse granularities and to mix ed traffic.