CA2299038A1 - Mpls application to optical cross connect using wavelength as a label - Google Patents

Mpls application to optical cross connect using wavelength as a label Download PDF

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Publication number
CA2299038A1
CA2299038A1 CA 2299038 CA2299038A CA2299038A1 CA 2299038 A1 CA2299038 A1 CA 2299038A1 CA 2299038 CA2299038 CA 2299038 CA 2299038 A CA2299038 A CA 2299038A CA 2299038 A1 CA2299038 A1 CA 2299038A1
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CA
Canada
Prior art keywords
wavelength
protocol
label
mpls
connect
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
CA 2299038
Other languages
French (fr)
Other versions
CA2299038C (en
Inventor
Peter J. Ashwood-Smith
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.)
Ciena Luxembourg SARL
Original Assignee
Nortel Networks Ltd
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 Ltd, Nortel Networks Corp filed Critical Nortel Networks Ltd
Priority to CA 2299038 priority Critical patent/CA2299038C/en
Priority to US09/536,020 priority patent/US7031607B1/en
Publication of CA2299038A1 publication Critical patent/CA2299038A1/en
Application granted granted Critical
Publication of CA2299038C publication Critical patent/CA2299038C/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
    • H04Q11/0062—Network aspects
    • H04Q11/0066—Provisions for optical burst or packet networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0228—Wavelength allocation for communications one-to-all, e.g. broadcasting wavelengths
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0278—WDM optical network architectures
    • 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
    • H04Q2011/0033—Construction using time division 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
    • H04Q11/0062—Network aspects
    • H04Q2011/0077—Labelling aspects, e.g. multiprotocol label switching [MPLS], G-MPLS, MPAS

Landscapes

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

Abstract

A label switching routing protocol for establishing a datapath as a sequence of locally unique labels in an optical communications network, is provided. A wavelength on an optical cross-connect is considered as a label or one portion of a label. Timeslots may be assigned to designated wavelengths so as to form the second portion of the label. An optical time cross-connect (OTXC) capable of wavelength conversion from an input to an output interface creates the datapath based on wavelength to wavelength substitution, under the control of a multi-protocol label switching (MPLS) protocol.

Claims (8)

1. A label switching routing protocol for establishing a datapath as a sequence of locally unique labels in an optical communications network, wherein said label is a wavelength frequency.
2. A label switching routing protocol for establishing a communication path as a sequence of locally unique labels in an optical communications network, wherein a first portion of each of said labels is a wavelength frequency.
3. The routing protocol as in claim 2, wherein a second portion of each of said labels is a timeslot.
4. The routing protocol as in claim 1 or claim 2, wherein said protocol is a multi-protocol label switching (MPLS).
5. The routing protocol of claim 4, further including a constrained routing label distribution protocol (CR-LDP) for controlling time, frequency, and statistically multiplexed paths.
6. An optical cross-connect (OXC) for creating a datapath in an optical communications network, said OXC for wavelength conversion from an input to an output interface so as to provide wavelength to wavelength substitution along said datapath.
7. The optical cross-connect of claim 5, wherein said wavelength to wavelength substitution is performed under the supervision of a multi-protocol label switching (MPLS).
8. The optical cross-connect of claim 6, further including time division multiplexing equipment for providing statistically multiplexed, frequency division multiplexed, and time division multiplexed paths under the control of said MPLS protocol.
CA 2299038 2000-02-21 2000-02-21 Mpls application to optical cross connect using wavelength as a label Expired - Lifetime CA2299038C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA 2299038 CA2299038C (en) 2000-02-21 2000-02-21 Mpls application to optical cross connect using wavelength as a label
US09/536,020 US7031607B1 (en) 2000-02-21 2000-03-27 MPLS application to optical cross-connect using wavelength as a label

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2299038 CA2299038C (en) 2000-02-21 2000-02-21 Mpls application to optical cross connect using wavelength as a label

Publications (2)

Publication Number Publication Date
CA2299038A1 true CA2299038A1 (en) 2001-08-21
CA2299038C CA2299038C (en) 2009-12-22

Family

ID=4165355

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2299038 Expired - Lifetime CA2299038C (en) 2000-02-21 2000-02-21 Mpls application to optical cross connect using wavelength as a label

Country Status (1)

Country Link
CA (1) CA2299038C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003021865A1 (en) * 2001-09-03 2003-03-13 Tpack A/S Telecommunication network comprising an sdh/sonet-subnet, where the gmpls function is incorporated in a gmpls software server
US7088221B2 (en) 2004-01-16 2006-08-08 Idt Technology Limited Weather station

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003021865A1 (en) * 2001-09-03 2003-03-13 Tpack A/S Telecommunication network comprising an sdh/sonet-subnet, where the gmpls function is incorporated in a gmpls software server
US7088221B2 (en) 2004-01-16 2006-08-08 Idt Technology Limited Weather station

Also Published As

Publication number Publication date
CA2299038C (en) 2009-12-22

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Effective date: 20200221