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Broadband switching system

Info

Publication number
CA2214839A1
CA2214839A1 CA 2214839 CA2214839A CA2214839A1 CA 2214839 A1 CA2214839 A1 CA 2214839A1 CA 2214839 CA2214839 CA 2214839 CA 2214839 A CA2214839 A CA 2214839A CA 2214839 A1 CA2214839 A1 CA 2214839A1
Authority
CA
Grant status
Application
Patent type
Prior art keywords
system
cells
switching
transmission
data
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
CA 2214839
Other languages
French (fr)
Other versions
CA2214839C (en )
Inventor
Avril Joy Smith
John Leonard Adams
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.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
Oxford Brookes University
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

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/54Store-and-forward switching systems
    • H04L12/56Packet switching systems
    • H04L12/5601Transfer mode dependent, e.g. ATM
    • H04L12/5602Bandwidth control in ATM Networks, e.g. leaky bucket
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q11/00Selecting arrangements for multiplex systems
    • H04Q11/04Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0478Provisions for broadband connections
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/54Store-and-forward switching systems
    • H04L12/56Packet switching systems
    • H04L12/5601Transfer mode dependent, e.g. ATM
    • H04L2012/5614User Network Interface
    • H04L2012/5615Network termination, e.g. NT1, NT2, PBX
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/54Store-and-forward switching systems
    • H04L12/56Packet switching systems
    • H04L12/5601Transfer mode dependent, e.g. ATM
    • H04L2012/5629Admission control
    • H04L2012/5631Resource management and allocation
    • H04L2012/5632Bandwidth allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/54Store-and-forward switching systems
    • H04L12/56Packet switching systems
    • H04L12/5601Transfer mode dependent, e.g. ATM
    • H04L2012/5629Admission control
    • H04L2012/5631Resource management and allocation
    • H04L2012/5632Bandwidth allocation
    • H04L2012/5635Backpressure, e.g. for ABR
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/54Store-and-forward switching systems
    • H04L12/56Packet switching systems
    • H04L12/5601Transfer mode dependent, e.g. ATM
    • H04L2012/5629Admission control
    • H04L2012/5631Resource management and allocation
    • H04L2012/5636Monitoring or policing, e.g. compliance with allocated rate, corrective actions
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/54Store-and-forward switching systems
    • H04L12/56Packet switching systems
    • H04L12/5601Transfer mode dependent, e.g. ATM
    • H04L2012/5638Services, e.g. multimedia, GOS, QOS
    • H04L2012/5639Tariffs or charging
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/54Store-and-forward switching systems
    • H04L12/56Packet switching systems
    • H04L12/5601Transfer mode dependent, e.g. ATM
    • H04L2012/5638Services, e.g. multimedia, GOS, QOS
    • H04L2012/5646Cell characteristics, e.g. loss, delay, jitter, sequence integrity
    • H04L2012/5649Cell delay or jitter

Abstract

In a broadband switching system for the switching of asynchronously transferred cells of data, a dynamic bandwidth controller (DBC) controls the application of data cells to an input port of the system, the data cells being supplied by a number of transmitting end-systems. When an end-system begins transmitting data cells, the DBC
detects the presence of incoming cells and requests bandwidth from a connection admission control (CAC) forming part of the system. The switching system stores a table associating a number of signal sources connected to the input port with respective predetermined maximum transmission times and maximum transmission rates for the sources. When arrival of cells at the input port from one of the source is detected, the DBC and CAC operate together to allocate sufficient bandwidth in the switching system to allow the respective message size to be transmitted within the respective maximum transmission time.
A guaranteed minimum rate of transmission is also guaranteed for the source.
CA 2214839 1995-03-08 1996-03-08 Broadband switching system Expired - Fee Related CA2214839C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP95301520.3 1995-03-08
EP95301520 1995-03-08
PCT/GB1996/000536 WO1996027966A1 (en) 1995-03-08 1996-03-08 Broadband switching system

Publications (2)

Publication Number Publication Date
CA2214839A1 true true CA2214839A1 (en) 1996-09-12
CA2214839C CA2214839C (en) 2007-07-31

Family

ID=8221116

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2214839 Expired - Fee Related CA2214839C (en) 1995-03-08 1996-03-08 Broadband switching system

Country Status (6)

Country Link
US (1) US6452905B1 (en)
JP (1) JPH11501477A (en)
CN (1) CN1183190A (en)
CA (1) CA2214839C (en)
EP (1) EP0813783A1 (en)
WO (1) WO1996027966A1 (en)

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Also Published As

Publication number Publication date Type
EP0813783A1 (en) 1997-12-29 application
WO1996027966A1 (en) 1996-09-12 application
JPH11501477A (en) 1999-02-02 application
CA2214839C (en) 2007-07-31 grant
US6452905B1 (en) 2002-09-17 grant
CN1183190A (en) 1998-05-27 application

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