Title :
A study on the inaccessibility characteristics of ISO 8802/4 token-bus LANs
Author :
Ruffino, J. ; Verissimo, Paulo
Author_Institution :
Inst. de Engenharia de Sistemas e Computadores, Tech. Univ. of Lisboa, Portugal
Abstract :
Continuity of service and bounded and known message delivery latency are requirements of a number of applications, which are imperfectly fulfilled by standard LANs. Most previous studies have addressed this issue by computing worst-case access/transmission delays only for normal LAN operation. However, LANs are subject to failures, namely partitions. Since most applications can live with temporary glitches in LAN operation, an alternative approach is to quantify all these glitches or temporary partitions, called inaccessibilities, and to derive a worst-case figure, to be added to the worst-case transmission delay in the absence of faults. In these conditions, reliable real-time operation is possible on nonreplicated LANs. An exhaustive study of the inaccessibility characteristics of the ISO 8802/4 token-bus LAN is described
Keywords :
local area networks; reliability; token networks; ISO 8802/4 token-bus LAN; bounded message delivery latency; failures; inaccessibility characteristics; known message delivery latency; nonreplicated LAN; partitions; reliable real-time operation; service continuity; worst-case access/transmission delays; worst-case figure; Automatic control; Delay; Error correction; FDDI; Fault tolerance; ISO standards; Local area networks; Real time systems; Redundancy; Telecommunication network reliability;
Conference_Titel :
INFOCOM '92. Eleventh Annual Joint Conference of the IEEE Computer and Communications Societies, IEEE
Conference_Location :
Florence
Print_ISBN :
0-7803-0602-3
DOI :
10.1109/INFCOM.1992.263514
