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

Info

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
Authority
CA
Grant status
Application
Patent type
Prior art keywords
protocol
wavelength
label
optical
routing
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.)
Nortel Networks Ltd
Original Assignee
Nortel Networks Ltd
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

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q11/00Selecting arrangements for multiplex systems
    • H04Q11/0001Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062Network aspects
    • H04Q11/0066Provisions for optical burst or packet networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J14/00Optical multiplex systems
    • H04J14/02Wavelength-division multiplex systems
    • H04J14/0227Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J14/00Optical multiplex systems
    • H04J14/02Wavelength-division multiplex systems
    • H04J14/0227Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0228Wavelength allocation for communications one-to-all, e.g. broadcasting wavelengths
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J14/00Optical multiplex systems
    • H04J14/02Wavelength-division multiplex systems
    • H04J14/0278WDM optical network architectures
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q11/00Selecting arrangements for multiplex systems
    • H04Q11/0001Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005Switch and router aspects
    • H04Q2011/0007Construction
    • H04Q2011/0033Construction using time division switching
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q11/00Selecting arrangements for multiplex systems
    • H04Q11/0001Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062Network aspects
    • H04Q2011/0077Labelling aspects, e.g. multiprotocol label switching [MPLS], G-MPLS, MPAS

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 Active CA2299038C (en)

Priority Applications (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

Applications Claiming Priority (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
US09536020 US7031607B1 (en) 2000-02-21 2000-03-27 MPLS application to optical cross-connect using wavelength as a label

Publications (2)

Publication Number Publication Date
CA2299038A1 true 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 Active 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 Type
CA2299038C (en) 2009-12-22 grant

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