WO1998026612A3 - Dynamic control processes and systems for asynchronous transfer mode networks - Google Patents

Dynamic control processes and systems for asynchronous transfer mode networks Download PDF

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Publication number
WO1998026612A3
WO1998026612A3 PCT/US1997/022776 US9722776W WO9826612A3 WO 1998026612 A3 WO1998026612 A3 WO 1998026612A3 US 9722776 W US9722776 W US 9722776W WO 9826612 A3 WO9826612 A3 WO 9826612A3
Authority
WO
WIPO (PCT)
Prior art keywords
transfer mode
asynchronous transfer
virtual
mode switch
network
Prior art date
Application number
PCT/US1997/022776
Other languages
French (fr)
Other versions
WO1998026612A9 (en
WO1998026612A2 (en
Inventor
Gregory Graham
Patrick S Ma
Original Assignee
Northern Telecom Ltd
Gregory Graham
Patrick S Ma
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 Northern Telecom Ltd, Gregory Graham, Patrick S Ma filed Critical Northern Telecom Ltd
Priority to AU56003/98A priority Critical patent/AU5600398A/en
Publication of WO1998026612A2 publication Critical patent/WO1998026612A2/en
Publication of WO1998026612A3 publication Critical patent/WO1998026612A3/en
Publication of WO1998026612A9 publication Critical patent/WO1998026612A9/en

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Classifications

    • 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
    • H04L2012/5619—Network Node Interface, e.g. tandem connections, transit switching
    • H04L2012/5621—Virtual private network [VPN]; Private-network - network-interface (P-NNI)
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

A system comprises a system control module (160) and a plurality of interconnected asynchronous transfer mode switches (130G-130K), the interconnected asynchronous transfer mode switches (130G-130K) are interconnected with one another via at least one physical interface (141) to form a network (170). The network (170) is used to transfer various types of information. Each asynchronous transfer mode switch (130) has a connection admission control module (140) to determine whether a virtual connection, such a virtual path, virtual channel, or grouping of virtual paths, can be connected through that particular asynchronous transfer mode switch (130). The virtual connection is formed from one asynchronous transfer mode switch to at least one other asynchronous transfer mode switch via a link of at least one physical interface (141). The system control module (160) connects to at least one asynchronous transfer mode switch and determines whether the virtual connection can be created in the network (170). A process of monitoring a utilization level of a grouping of a virtual path on a physical interface comprises checking the utilization level of the virtual path, updating an amount of available bandwidth for the virtual path, and comparing the amount of available bandwidth with a maximum threshold for the available bandwidth and setting an overload condition if the amount exceeds the maximum threshold and clearing the overload condition if the amount is below the maximum threshold. Service contracts governing a client's use of the network and ability to set up a virtual connection are also checked in certain circumstances.
PCT/US1997/022776 1996-12-13 1997-12-12 Dynamic control processes and systems for asynchronous transfer mode networks WO1998026612A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU56003/98A AU5600398A (en) 1996-12-13 1997-12-12 Dynamic control processes and systems for asynchronous transfer mode networks

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/764,959 1996-12-13
US08/764,959 US5953338A (en) 1996-12-13 1996-12-13 Dynamic control processes and systems for asynchronous transfer mode networks

Publications (3)

Publication Number Publication Date
WO1998026612A2 WO1998026612A2 (en) 1998-06-18
WO1998026612A3 true WO1998026612A3 (en) 1998-10-01
WO1998026612A9 WO1998026612A9 (en) 1998-11-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/022776 WO1998026612A2 (en) 1996-12-13 1997-12-12 Dynamic control processes and systems for asynchronous transfer mode networks

Country Status (3)

Country Link
US (1) US5953338A (en)
AU (1) AU5600398A (en)
WO (1) WO1998026612A2 (en)

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