GB2342811A - Augmentation of ATM cell with buffering data - Google Patents

Augmentation of ATM cell with buffering data

Info

Publication number
GB2342811A
GB2342811A GB0000450A GB0000450A GB2342811A GB 2342811 A GB2342811 A GB 2342811A GB 0000450 A GB0000450 A GB 0000450A GB 0000450 A GB0000450 A GB 0000450A GB 2342811 A GB2342811 A GB 2342811A
Authority
GB
United Kingdom
Prior art keywords
cell
switch
buffering data
atm cell
atm
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
GB0000450A
Other versions
GB0000450D0 (en
GB2342811A8 (en
GB2342811B (en
Inventor
Gunnar Larsson
Clarence Fransson
Raimo Sissonen
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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
Priority to US89350797A priority Critical
Application filed by Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Priority to PCT/SE1998/001288 priority patent/WO1999003237A1/en
Publication of GB0000450D0 publication Critical patent/GB0000450D0/en
Publication of GB2342811A publication Critical patent/GB2342811A/en
Publication of GB2342811A8 publication Critical patent/GB2342811A8/en
Application granted granted Critical
Publication of GB2342811B publication Critical patent/GB2342811B/en
Anticipated expiration legal-status Critical
Application status is Expired - Fee Related legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00Packet switching elements
    • H04L49/30Peripheral units, e.g. input or output ports
    • H04L49/3081ATM peripheral units, e.g. policing, insertion or extraction
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00Packet switching elements
    • H04L49/20Support for services or operations
    • H04L49/201Multicast or broadcast
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00Packet switching elements
    • H04L49/20Support for services or operations
    • H04L49/201Multicast or broadcast
    • H04L49/203ATM switching fabrics with multicast or broadcast capabilities
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00Packet switching elements
    • H04L49/30Peripheral units, e.g. input or output ports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00Packet switching elements
    • H04L49/50Overload detection; Overload protection
    • H04L49/505Corrective Measures, e.g. backpressure
    • 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
    • H04L2012/5638Services, e.g. multimedia, GOS, QOS
    • H04L2012/5646Cell characteristics, e.g. loss, delay, jitter, sequence integrity
    • H04L2012/5651Priority, marking, classes
    • 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
    • H04L2012/5652Cell construction, e.g. including header, packetisation, depacketisation, assembly, reassembly
    • 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
    • H04L2012/5678Traffic aspects, e.g. arbitration, load balancing, smoothing, buffer management
    • H04L2012/5681Buffer or queue management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00Packet switching elements
    • H04L49/20Support for services or operations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00Packet switching elements
    • H04L49/25Routing or path finding through a switch fabric
    • H04L49/253Connections establishment or release between ports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00Packet switching elements
    • H04L49/30Peripheral units, e.g. input or output ports
    • H04L49/3009Header conversion, routing tables or routing tags

Abstract

An Asynchronous Transfer Mode (ATM) switch (20) comprises a controller (44) which augments an ATM cell with buffering data. During cell ingress into the switch, a buffer circuit (46) connected to the controller (44) receives an augmented ATM cell and stores the augmented ATM cell in a buffer cell memory (90) in accordance with the buffering data. Upon extraction from the buffer cell memory (90), the ATM cell is routed through a switch core (22). During cell egress from the switch, the cell leaves the switch core (22), travels through a switch port (50), and is received at a second buffer circuit (72). The second buffer circuit (72) stores the augmented ATM cell in a cell buffer memory (92) in accordance with the buffering data.
GB0000450A 1997-07-11 1998-06-30 Augmentation of ATM cell with buffering data Expired - Fee Related GB2342811B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US89350797A true 1997-07-11 1997-07-11
PCT/SE1998/001288 WO1999003237A1 (en) 1997-07-11 1998-06-30 Augmentation of atm cell with buffering data

Publications (4)

Publication Number Publication Date
GB0000450D0 GB0000450D0 (en) 2000-03-01
GB2342811A true GB2342811A (en) 2000-04-19
GB2342811A8 GB2342811A8 (en) 2000-05-17
GB2342811B GB2342811B (en) 2002-08-07

Family

ID=25401692

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0000450A Expired - Fee Related GB2342811B (en) 1997-07-11 1998-06-30 Augmentation of ATM cell with buffering data

Country Status (5)

Country Link
JP (1) JP2001510303A (en)
CN (1) CN1269936A (en)
AU (1) AU8362698A (en)
GB (1) GB2342811B (en)
WO (1) WO1999003237A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6721271B1 (en) 1999-02-04 2004-04-13 Nortel Networks Limited Rate-controlled multi-class high-capacity packet switch
JP3339463B2 (en) 1999-05-13 2002-10-28 日本電気株式会社 Switch and the input port
US6882799B1 (en) 2000-09-28 2005-04-19 Nortel Networks Limited Multi-grained network
US20040213266A1 (en) * 2003-04-25 2004-10-28 Alcatel Ip Networks, Inc. Network switch fabric configured to weight traffic
CN100428724C (en) 2005-07-11 2008-10-22 普天信息技术研究院 Dynamic time-division exchanger and exchanging method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0606729A2 (en) * 1993-01-11 1994-07-20 AT&T Corp. Asynchronous transfer mode (ATM) expanded internal cell format
US5361255A (en) * 1991-04-29 1994-11-01 Dsc Communications Corporation Method and apparatus for a high speed asynchronous transfer mode switch
EP0719065A1 (en) * 1994-12-20 1996-06-26 International Business Machines Corporation Multipurpose packet switching node for a data communication network
US5535202A (en) * 1994-03-16 1996-07-09 Mitsubishi Denki Kabushiki Kaisha Priority processing of ATM cells using shift register stages
US5537400A (en) * 1994-04-15 1996-07-16 Dsc Communications Corporation Buffered crosspoint matrix for an asynchronous transfer mode switch and method of operation
EP0785697A2 (en) * 1996-01-16 1997-07-23 AT&T Corp. Multistage network having multicast routing congestion feedback

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5361255A (en) * 1991-04-29 1994-11-01 Dsc Communications Corporation Method and apparatus for a high speed asynchronous transfer mode switch
EP0606729A2 (en) * 1993-01-11 1994-07-20 AT&T Corp. Asynchronous transfer mode (ATM) expanded internal cell format
US5535202A (en) * 1994-03-16 1996-07-09 Mitsubishi Denki Kabushiki Kaisha Priority processing of ATM cells using shift register stages
US5537400A (en) * 1994-04-15 1996-07-16 Dsc Communications Corporation Buffered crosspoint matrix for an asynchronous transfer mode switch and method of operation
EP0719065A1 (en) * 1994-12-20 1996-06-26 International Business Machines Corporation Multipurpose packet switching node for a data communication network
EP0785697A2 (en) * 1996-01-16 1997-07-23 AT&T Corp. Multistage network having multicast routing congestion feedback

Also Published As

Publication number Publication date
JP2001510303A (en) 2001-07-31
GB0000450D0 (en) 2000-03-01
GB2342811A8 (en) 2000-05-17
AU8362698A (en) 1999-02-08
WO1999003237A1 (en) 1999-01-21
GB2342811B (en) 2002-08-07
CN1269936A (en) 2000-10-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20070630