CA2172262A1 - ATM Switch in Dual Switch Plane Operation - Google Patents

ATM Switch in Dual Switch Plane Operation

Info

Publication number
CA2172262A1
CA2172262A1 CA2172262A CA2172262A CA2172262A1 CA 2172262 A1 CA2172262 A1 CA 2172262A1 CA 2172262 A CA2172262 A CA 2172262A CA 2172262 A CA2172262 A CA 2172262A CA 2172262 A1 CA2172262 A1 CA 2172262A1
Authority
CA
Canada
Prior art keywords
switch
dual
atm
plane operation
plane
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
CA2172262A
Other languages
French (fr)
Other versions
CA2172262C (en
Inventor
Richard Thomas Mcgill
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.)
Nortel Networks Ltd
Original Assignee
Richard Thomas Mcgill
Bell-Northern Research Ltd.
Northern Telecom Limited
Nortel Networks Corporation
Nortel Networks Limited
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 Richard Thomas Mcgill, Bell-Northern Research Ltd., Northern Telecom Limited, Nortel Networks Corporation, Nortel Networks Limited filed Critical Richard Thomas Mcgill
Publication of CA2172262A1 publication Critical patent/CA2172262A1/en
Application granted granted Critical
Publication of CA2172262C publication Critical patent/CA2172262C/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
    • H04L49/55—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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/15—Interconnection of switching modules
    • H04L49/1515—Non-blocking multistage, e.g. Clos
    • H04L49/1523—Parallel switch fabric planes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/15—Interconnection of switching modules
    • H04L49/1515—Non-blocking multistage, e.g. Clos
    • H04L49/153—ATM switching fabrics having parallel switch planes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/15—Interconnection of switching modules
    • H04L49/1553—Interconnection of ATM switching modules, e.g. ATM switching fabrics
    • 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
    • H04L2012/5625—Operations, administration and maintenance [OAM]
    • H04L2012/5627—Fault tolerance and recovery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/50—Overload detection or protection within a single switching element
    • H04L49/501—Overload detection
    • H04L49/503—Policing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/50—Overload detection or protection within a single switching element
    • H04L49/505—Corrective measures
    • H04L49/506—Backpressure

Abstract

A novel ATM switch of dual switch plane operation and method of switching traffic in unit cells among ports in dual switch planes are disclosed. The ATM switch of the invention is plane protected in that a redundant switch plane is provided. In the switch, traffic cells are tagged either symmetric or asymmetric at an ingress port so that a destination port is able to properly gather correct cells even when switch planes develop faults or quality degradation.
CA002172262A 1994-07-14 1995-03-15 Atm switch in dual switch plane operation Expired - Fee Related CA2172262C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/275,170 US5436886A (en) 1994-07-14 1994-07-14 ATM switch in dual switch plane operation
US08/275,170 1994-07-14
PCT/CA1995/000136 WO1996002994A1 (en) 1994-07-14 1995-03-15 Atm switch in dual switch plane operation

Publications (2)

Publication Number Publication Date
CA2172262A1 true CA2172262A1 (en) 1996-02-01
CA2172262C CA2172262C (en) 2001-01-16

Family

ID=23051171

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002172262A Expired - Fee Related CA2172262C (en) 1994-07-14 1995-03-15 Atm switch in dual switch plane operation

Country Status (6)

Country Link
US (1) US5436886A (en)
EP (1) EP0770297B1 (en)
JP (1) JP3003051B2 (en)
CA (1) CA2172262C (en)
DE (1) DE69513663T2 (en)
WO (1) WO1996002994A1 (en)

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Also Published As

Publication number Publication date
JP3003051B2 (en) 2000-01-24
CA2172262C (en) 2001-01-16
WO1996002994A1 (en) 1996-02-01
DE69513663T2 (en) 2000-04-06
US5436886A (en) 1995-07-25
DE69513663D1 (en) 2000-01-05
JPH09511113A (en) 1997-11-04
EP0770297B1 (en) 1999-12-01
EP0770297A1 (en) 1997-05-02

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EEER Examination request
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