CA2314322A1 - Optical switch and protocols for use therewith - Google Patents

Optical switch and protocols for use therewith Download PDF

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Publication number
CA2314322A1
CA2314322A1 CA002314322A CA2314322A CA2314322A1 CA 2314322 A1 CA2314322 A1 CA 2314322A1 CA 002314322 A CA002314322 A CA 002314322A CA 2314322 A CA2314322 A CA 2314322A CA 2314322 A1 CA2314322 A1 CA 2314322A1
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CA
Canada
Prior art keywords
switching nodes
network
protocol
wavelengths
switching
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
CA002314322A
Other languages
French (fr)
Other versions
CA2314322C (en
Inventor
Guo-Qiang Wang
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.)
Rockstar Consortium US LP
Original Assignee
Nortel Networks Corp
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 Nortel Networks Corp filed Critical Nortel Networks Corp
Publication of CA2314322A1 publication Critical patent/CA2314322A1/en
Application granted granted Critical
Publication of CA2314322C publication Critical patent/CA2314322C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/27—Arrangements for networking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0003—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H04Q2011/0007—Construction
    • H04Q2011/0011—Construction using wavelength conversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H04Q2011/0007—Construction
    • H04Q2011/0016—Construction using wavelength multiplexing or demultiplexing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H04Q2011/0037—Operation
    • H04Q2011/0039—Electrical control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0069—Network aspects using dedicated optical channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0073—Provisions for forwarding or routing, e.g. lookup tables
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0086—Network resource allocation, dimensioning or optimisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/009—Topology aspects

Abstract

A method of establishing a data connection between terminal switching nodes in a network and switching nodes for implementing the method. The method involves switching nodes participating in a network layer wavelength routing (WR) protocol to determine the next hop switching node for every possible combination of terminal nodes based on the network topology. The method also involves the switching nodes participating in a network layer wavelength distribution (WD) once the data connection is to be established. The WR protocol determines the path used through the network, while the WD protocol assigns wavelengths on each link between switching nodes. The wavelengths may be different on different optical links. The switching nodes include wavelength converters with an optical switch or optoelectronic converters with a digital electronic switch. A digital electronic switch can also provide signal reformatting. Advantages of using potentially different wavelengths along various segments of a single end-to-end connection yields increased wavelength efficiency.
CA002314322A 1999-07-29 2000-07-21 Optical switch and protocols for use therewith Expired - Lifetime CA2314322C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/362,886 US6529301B1 (en) 1999-07-29 1999-07-29 Optical switch and protocols for use therewith
US09/362,886 1999-07-29

Publications (2)

Publication Number Publication Date
CA2314322A1 true CA2314322A1 (en) 2001-01-29
CA2314322C CA2314322C (en) 2007-01-30

Family

ID=23427901

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002314322A Expired - Lifetime CA2314322C (en) 1999-07-29 2000-07-21 Optical switch and protocols for use therewith

Country Status (4)

Country Link
US (10) US6529301B1 (en)
EP (3) EP2268054A3 (en)
JP (1) JP4380895B2 (en)
CA (1) CA2314322C (en)

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Also Published As

Publication number Publication date
US20140186036A1 (en) 2014-07-03
EP2268054A2 (en) 2010-12-29
JP4380895B2 (en) 2009-12-09
EP2268054A3 (en) 2013-05-15
EP1073308A3 (en) 2004-01-28
US8463123B2 (en) 2013-06-11
US20130266317A1 (en) 2013-10-10
EP2268055A2 (en) 2010-12-29
US20160255424A1 (en) 2016-09-01
US6529301B1 (en) 2003-03-04
US20140205290A1 (en) 2014-07-24
CA2314322C (en) 2007-01-30
US20140205287A1 (en) 2014-07-24
US20160255426A1 (en) 2016-09-01
US20160255427A1 (en) 2016-09-01
US20030161632A1 (en) 2003-08-28
EP2268055A3 (en) 2013-05-15
JP2001119734A (en) 2001-04-27
EP1073308A2 (en) 2001-01-31
US20130202298A1 (en) 2013-08-08

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Effective date: 20200721