CA2298875A1 - Packet switch control with layered software - Google Patents

Packet switch control with layered software Download PDF

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Publication number
CA2298875A1
CA2298875A1 CA002298875A CA2298875A CA2298875A1 CA 2298875 A1 CA2298875 A1 CA 2298875A1 CA 002298875 A CA002298875 A CA 002298875A CA 2298875 A CA2298875 A CA 2298875A CA 2298875 A1 CA2298875 A1 CA 2298875A1
Authority
CA
Canada
Prior art keywords
packet switch
modules
switch control
processors
distributed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002298875A
Other languages
French (fr)
Other versions
CA2298875C (en
Inventor
Edward A. Arenberg
Maria A. Tirabassi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Northrop Grumman Corp
Original Assignee
TRW Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TRW Inc filed Critical TRW Inc
Publication of CA2298875A1 publication Critical patent/CA2298875A1/en
Application granted granted Critical
Publication of CA2298875C publication Critical patent/CA2298875C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/30—Peripheral units, e.g. input or output ports
    • H04L49/3081—ATM peripheral units, e.g. policing, insertion or extraction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18515—Transmission equipment in satellites or space-based relays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/18578—Satellite systems for providing broadband data service to individual earth stations
    • H04B7/18589—Arrangements for controlling an end to end session, i.e. for initialising, synchronising or terminating an end to end link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/20—Support for services
    • H04L49/201—Multicast operation; Broadcast operation
    • H04L49/203—ATM switching fabrics with multicast or broadcast capabilities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/25—Routing or path finding in a switch fabric
    • H04L49/253—Routing or path finding in a switch fabric using establishment or release of connections between ports
    • H04L49/254—Centralised controller, i.e. arbitration or scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/25—Routing or path finding in a switch fabric
    • H04L49/253—Routing or path finding in a switch fabric using establishment or release of connections between ports
    • H04L49/255—Control mechanisms for ATM switching fabrics
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/55—Prevention, detection or correction of errors
    • H04L49/552—Prevention, detection or correction of errors by ensuring the integrity of packets received through redundant connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0478—Provisions for broadband connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5603—Access techniques
    • H04L2012/5604—Medium of transmission, e.g. fibre, cable, radio
    • H04L2012/5608—Satellite
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5625—Operations, administration and maintenance [OAM]
    • H04L2012/5627—Fault tolerance and recovery

Abstract

A communications satellite (201) has an on-board high speed packet switch for switching transmitted data packets. The packet switch (502) is part of a processor subsystem (501) which also includes a number of demodulators (503l to 503n) demodulating signals received from an uplink downconverter. All of the processors in the processor subsystem (501) are organized into a loosely coupled, distributed, architecture of general purpose computer modules (601) and digital signal processor modules (602) having both primary and redundant processors and being connected to each other by dual redundant PCI buses. Software and firmware is layered and distributed redundantly over the processor modules (601, 602).
CA002298875A 1999-02-25 2000-02-17 Packet switch control with layered software Expired - Fee Related CA2298875C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/258,167 1999-02-25
US09/258,167 US6400925B1 (en) 1999-02-25 1999-02-25 Packet switch control with layered software

Publications (2)

Publication Number Publication Date
CA2298875A1 true CA2298875A1 (en) 2000-08-25
CA2298875C CA2298875C (en) 2004-01-06

Family

ID=22979385

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002298875A Expired - Fee Related CA2298875C (en) 1999-02-25 2000-02-17 Packet switch control with layered software

Country Status (4)

Country Link
US (1) US6400925B1 (en)
EP (1) EP1032166A3 (en)
JP (1) JP2000253025A (en)
CA (1) CA2298875C (en)

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US7339520B2 (en) * 2000-02-04 2008-03-04 The Directv Group, Inc. Phased array terminal for equatorial satellite constellations
US6628922B1 (en) 2000-03-21 2003-09-30 Harvey L. Berger Communication system utilizing multiple satellites without intersatellite crosslinks
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US7257611B1 (en) * 2000-04-12 2007-08-14 Oracle International Corporation Distributed nonstop architecture for an event processing system
US6711398B1 (en) * 2000-04-19 2004-03-23 Hughes Electronics Corporation Radio signal broadcast system and method
US7366463B1 (en) * 2000-05-05 2008-04-29 The Directv Group, Inc. Military UHF and commercial Geo-mobile system combination for radio signal relay
US6636734B1 (en) * 2000-05-17 2003-10-21 Northrop Grumman Corporation Dual receive ground terminal for use in communication systems utilizing multiple satellites
US6731613B1 (en) * 2000-06-14 2004-05-04 Motorola, Inc. Power management using a bandwidth control mechanism
US7213080B2 (en) * 2000-07-14 2007-05-01 Comsat Corporation Intelligent radio design for satellite gateways and terrestrial base stations
US6553208B1 (en) * 2000-09-15 2003-04-22 Motorola, Inc. Methods and apparatus for using ground based processing resources to support orbiting satellites
US7181162B2 (en) * 2000-12-12 2007-02-20 The Directv Group, Inc. Communication system using multiple link terminals
US7187949B2 (en) 2001-01-19 2007-03-06 The Directv Group, Inc. Multiple basestation communication system having adaptive antennas
US8396513B2 (en) 2001-01-19 2013-03-12 The Directv Group, Inc. Communication system for mobile users using adaptive antenna
US7809403B2 (en) * 2001-01-19 2010-10-05 The Directv Group, Inc. Stratospheric platforms communication system using adaptive antennas
US7068733B2 (en) * 2001-02-05 2006-06-27 The Directv Group, Inc. Sampling technique for digital beam former
US6987760B2 (en) * 2001-03-05 2006-01-17 International Business Machines Corporation High speed network processor
US6870844B2 (en) * 2001-03-06 2005-03-22 Pluris, Inc. Apparatus and methods for efficient multicasting of data packets
JP2003234825A (en) * 2002-02-06 2003-08-22 Mitsubishi Electric Corp Device for transmitting digital signal
FR2837043B1 (en) * 2002-03-05 2004-06-04 Cit Alcatel SWITCHING SYSTEM, TRANSMISSION DEVICE, TRANSMISSION METHOD AND SWITCHING METHOD FOR SATELLITE
US8099393B2 (en) 2002-03-22 2012-01-17 Oracle International Corporation Transaction in memory object store
US7027577B2 (en) * 2002-08-26 2006-04-11 Telefonaktiebolaget Lm Ericsson (Publ) Method and system for multi-party call conferencing
DE10340424B4 (en) * 2003-09-02 2006-07-27 Infineon Technologies Ag Operating state-dependent distribution of tasks in mobile communication terminals with multiple micro-processors
US7310664B1 (en) 2004-02-06 2007-12-18 Extreme Networks Unified, configurable, adaptive, network architecture
US7823199B1 (en) 2004-02-06 2010-10-26 Extreme Networks Method and system for detecting and preventing access intrusion in a network
US7577996B1 (en) * 2004-02-06 2009-08-18 Extreme Networks Apparatus, method and system for improving network security
US7962095B2 (en) * 2004-03-31 2011-06-14 Nortel Networks Limited Relaying system and method with partner relays and selective transmission
US7320064B2 (en) * 2004-07-23 2008-01-15 Honeywell International Inc. Reconfigurable computing architecture for space applications
US7502382B1 (en) 2004-09-30 2009-03-10 Itt Manufacturing Enterprises, Inc. Method and apparatus for multicast packet distribution in a satellite constellation network
US8223935B2 (en) 2005-04-30 2012-07-17 Oracle International Corporation Revenue management systems and methods
CA2613701C (en) 2005-06-28 2016-04-12 Alexander Rockel Revenue management system and method
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US20070046781A1 (en) * 2005-08-29 2007-03-01 Honeywell International Inc. Systems and methods for processing digital video data
US8223777B2 (en) * 2005-11-15 2012-07-17 Oracle International Corporation Gateway for achieving low latency and high availability in a real time event processing system
US20100165892A1 (en) * 2006-02-28 2010-07-01 Posdata Co., Ltd. Apparatus and method for implementing efficient redundancy and widened service coverage in radio access station system
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Also Published As

Publication number Publication date
EP1032166A2 (en) 2000-08-30
CA2298875C (en) 2004-01-06
JP2000253025A (en) 2000-09-14
US6400925B1 (en) 2002-06-04
EP1032166A3 (en) 2004-06-16

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