Data communication network with management port for isochronous

Details Data communication network with management port for isochronous Data communication network with management port for isochronous

1995-02-07

1996-08-27

Safourek, Benedict V.

Multiplex communications

Wide area network

Packet switching

370 8514, 370 943, 3701101, H04L 1244, H04J 312

Patent

active

055508022

ABSTRACT:
The present invention provides for communication of data to and from isochronous data sources and sinks. Preferably, a portion of bandwidth on the link is also dedicated to convey data to and from non-isochronous sources and sinks, as well as to permit conveying housekeeping information (such as information relating to data sources and destinations) and status and control maintenance information. A management port is included in the isochronous switching devices to allow monitoring or diagnostic access to the serial isochronous data stream to and from all physical layer portion connections. Accessing one connection's data stream does not affect normal operation of the other connections.

REFERENCES:
patent: 4220816 (1980-09-01), Howells et al.
patent: 4258434 (1981-03-01), Glowinski et al.
patent: 4412324 (1983-10-01), Glowinsky et al.
patent: 4445213 (1984-04-01), Baugh et al.
patent: 4530088 (1985-07-01), Hamstra et al.
patent: 4549292 (1985-10-01), Isaman et al.
patent: 4577312 (1986-03-01), Nash
patent: 4587650 (1986-05-01), Bell
patent: 4596982 (1986-06-01), Bahr et al.
patent: 4637014 (1987-01-01), Bell et al.
patent: 4751698 (1988-06-01), Bouillot et al.
patent: 4766590 (1988-08-01), Hamada et al.
patent: 4766591 (1988-08-01), Huang
patent: 4845609 (1989-07-01), Lighthart et al.
patent: 4937823 (1990-06-01), Bekki et al.
patent: 4961188 (1990-10-01), Lau
patent: 4985891 (1991-01-01), Fujiwara et al.
patent: 5001707 (1991-03-01), Kositpaiboon et al.
patent: 5119373 (1992-06-01), Fredricsson et al.
patent: 5249178 (1993-09-01), Kurano et al.
patent: 5297138 (1994-03-01), Black
patent: 5345447 (1994-09-01), Noel
patent: 5349578 (1994-09-01), Tatsuki et al.
Integrated PBX Systems, An NCC State of the Art Report, The National Computing Centre Limited, 1987.
ISDN Basic Rate Interface System Design Guide, Telenetworks document, Aug. 1989.
ISDN Primary Rate Interface System Design Guide, Telenetworks, document, Jul. 1989.
IEEE 802.3 Draft Supplement to IEEE Std 802.3 CSMA/CD Access Method and Physical Layer Specifications, Institute of Electrical and Electronics, Nov. 1989.
A communication system proposal presented to representatives of Apple Computer on Mar. 5, 1990.
Irube et al., "Integrated Information and Communication System for Business Networks" Hitachi Review 40 (3):241-247 (1991).
HMUX ERS "FDDI-II Hybrid Multiplexor (HMUX)" Rev. 2.4, (Mar. 25, 1991).
On or about Nov. 1, 1991, IBM Corporation provided a "Task Order" and appendix. A copy of pp. 6 and 7 of the Task Order and appendix titled, Isoethernet Project Local Cluster Controller Version 1.2.
"Exchangeable Card Architecture Specification," Release 1.00, bearing the date Dec. 20, 1991, pp. 7, 20 and 22.
"PCMCIA Socket Services Interface Specification," Draft 2.00b, bearing the date Jul. 17, 1992.
"VersaNet.TM. An Ethernet Extension for Isochronous Communications" bearing the date Aug. 14, 1992 is a paper sent to National Semiconductor Corporation from Condor Systems, Inc. of San Jose, California on Aug. 18, 1992.
"IBM's Multimedia Venture: Opportunity for its Hardware!," vol. 38, No. 1930, p. 1, Sep. 21, 1992.
"DP839XX Isochronous Time Slot Exchanger (IsoTSX.TM.)", Revision 0.8, bearing the date Oct. 29, 1992 and DP839XX Isochronous Ethernet Physical Layer isoPHY.TM. Revision 1.1, bearing the date Oct. 1992, were disclosed to International Business Machines.
A disclosure of a communication system was presented at the IEEE 802.9 Standards Meeting on Nov. 8-12, 1992. The pages entitled "Multi-Media Applications are Ready".
"National Proposes Isochronous Ethernet", Electronic News, vol. 38, No. 1940, p. 19, Nov. 30, 1992.
IEEE 802.9 Draft Standard Integrated Services (IS) LAN Interface at the MAC and PHY Layers, Institute of Electrical and Electronics, Nov., 1992.
"DP839XX Isochronous Ethernet Physical Layer IsoPHY.TM.," Revision 2.1, bearing the date Dec. 1992 and DP839XX Isochronous Time Slot Exchanger (isoTSX), Revision 1.0, bearing the Dec. 13, 1992, were disclosed to IBM and Ericsson.
"DP839XX Isochronous Ethernet Physical Layer isoPHY.TM." Revision 3.0, bearing the date Dec., 1992 and Isochronous Time Slot Exchanger (IsoTSX.TM.) Workbook, Revision 1.2, bearing the date Feb. 16, 1993 was disclosed to Luxcom, Inc. of Fremont, California.
DP8390 Network Interface Controller: An Introductory Guide, Local Area Network Databook, National Semiconductor Corporation, pp. 1-206 to 1-213, 1992 Edition.
DP83932B Systems-Oriented Network Interface Controller, Local Area Network Databook, National Semiconductor Corporation, pp. 1-288 to 1-383, 1992 Edition.
DP83950A Repeater Interface Controller, Local Area Network Databook, National Semiconductor Corporation, pp. 3-3 to 3-73, 1992 Edition.
DP83950EB at IEEE 802.3, Multi-Port Repeater Evaluation Kit, Local Area Network Databook, National Semiconductor Corporation, pp. 75-87, 1992 Edition.
American National Standard for Information System--document X3.139-1987.
"Scheme for Fast Ethernet Proposed," by Loring Wirbel, appears to be a newspaper article. At present, the date of this article is unknown, but it is currently believed to be prior to Mar., 1993.
"Local Area Network Databook" published by National Semiconductor, pp.1-3 to 1-9, 1-242 to 1-248, 5-3 to 5-7.
"Token-Ring Network Architecture Reference," pp. 5-1 through 5-28 and pp. 5-10 and 5-17.

Affiliated with

Also associated with

Rating

Data communication network with management port for isochronous does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Data communication network with management port for isochronous , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data communication network with management port for isochronous will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1061132