Multiplex communications – Wide area network – Packet switching
Patent
1992-01-31
1994-05-31
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
371 112, 370 8512, H04J 302
Patent
active
053175697
ABSTRACT:
A local area network uses standard ANSI FDDI LAN concentrator stations and a first set of mutually reverse-direction data buses or loops, in conjunction with an additional set of mutually reverse-direction data paths. The standard FDDI protocols when applied in the context of the particular connections of the concentrator station operate in the event of a break in the data path terminating at an input or output port, to reconfigure the station to interconnect the buses in a manner which routes data around even multiple breaks in the buses, to thereby maintain communication integrity.
REFERENCES:
patent: 4723241 (1988-02-01), Grobel et al.
patent: 4914625 (1990-04-01), Billian
patent: 5105420 (1992-04-01), Ardon et al.
SBT/IEEE International Telecommunications Symposium, Sep. 3-6, 1990.
FDDI Concentrators and How they Work Together with Other FDDI Network Components (Franzer).
Partial European Search Report, Sep. 1, 1993 (3 pages).
"Twisted-Pair FDDI clears major hurdle", Nitzsche, Digital News, Jul. 6, 1992, issue.
Tiffany et al., `The DEC Concentrator 500 Product` Digital Technical Journal (1991) pp. 64-75.
Hart Joseph J.
Ralph Stanley F.
Weinberg Leonard
General Electric Co.
Hom Shick
Meise W. H.
Nieves C. A.
Olms Douglas W.
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