CA2214839A1 - Broadband switching system - Google Patents

Broadband switching system

Info

Publication number
CA2214839A1
CA2214839A1 CA002214839A CA2214839A CA2214839A1 CA 2214839 A1 CA2214839 A1 CA 2214839A1 CA 002214839 A CA002214839 A CA 002214839A CA 2214839 A CA2214839 A CA 2214839A CA 2214839 A1 CA2214839 A1 CA 2214839A1
Authority
CA
Canada
Prior art keywords
cells
dbc
switching system
input port
maximum transmission
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
CA002214839A
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
Avril Joy Smith
John Leonard Adams
Oxford Brookes University
British Telecommunications Public Limited Company
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 Avril Joy Smith, John Leonard Adams, Oxford Brookes University, British Telecommunications Public Limited Company filed Critical Avril Joy Smith
Publication of CA2214839A1 publication Critical patent/CA2214839A1/en
Application granted granted Critical
Publication of CA2214839C publication Critical patent/CA2214839C/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
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks
    • H04L12/427—Loop networks with decentralised control
    • H04L12/433—Loop networks with decentralised control with asynchronous transmission, e.g. token ring, register insertion
    • 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
    • H04L12/5602—Bandwidth control in ATM Networks, e.g. leaky bucket
    • 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
    • H04L2012/5614—User Network Interface
    • H04L2012/5615—Network termination, e.g. NT1, NT2, PBX
    • 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
    • H04L2012/5629—Admission control
    • H04L2012/5631—Resource management and allocation
    • H04L2012/5632—Bandwidth allocation
    • 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
    • H04L2012/5629—Admission control
    • H04L2012/5631—Resource management and allocation
    • H04L2012/5632—Bandwidth allocation
    • H04L2012/5635—Backpressure, e.g. for ABR
    • 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
    • H04L2012/5629—Admission control
    • H04L2012/5631—Resource management and allocation
    • H04L2012/5636—Monitoring or policing, e.g. compliance with allocated rate, corrective actions
    • 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
    • H04L2012/5638—Services, e.g. multimedia, GOS, QOS
    • H04L2012/5639—Tariffs or charging
    • 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
    • H04L2012/5638—Services, e.g. multimedia, GOS, QOS
    • H04L2012/5646—Cell characteristics, e.g. loss, delay, jitter, sequence integrity
    • H04L2012/5649—Cell 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.
CA002214839A 1995-03-08 1996-03-08 Broadband switching system Expired - Fee Related CA2214839C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP95301520 1995-03-08
EP95301520.3 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 CA2214839A1 (en) 1996-09-12
CA2214839C CA2214839C (en) 2007-07-31

Family

ID=8221116

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002214839A Expired - Fee Related CA2214839C (en) 1995-03-08 1996-03-08 Broadband switching system

Country Status (11)

Country Link
US (1) US6452905B1 (en)
EP (1) EP0813783A1 (en)
JP (1) JPH11501477A (en)
KR (1) KR19980702939A (en)
CN (1) CN1183190A (en)
AU (1) AU719514B2 (en)
CA (1) CA2214839C (en)
MX (1) MX9706821A (en)
NO (1) NO974130L (en)
NZ (1) NZ303240A (en)
WO (1) WO1996027966A1 (en)

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Also Published As

Publication number Publication date
WO1996027966A1 (en) 1996-09-12
JPH11501477A (en) 1999-02-02
AU4948996A (en) 1996-09-23
NO974130D0 (en) 1997-09-08
NZ303240A (en) 1999-06-29
EP0813783A1 (en) 1997-12-29
CA2214839C (en) 2007-07-31
MX9706821A (en) 1998-10-31
AU719514B2 (en) 2000-05-11
NO974130L (en) 1997-11-07
CN1183190A (en) 1998-05-27
US6452905B1 (en) 2002-09-17
KR19980702939A (en) 1998-09-05

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