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1. WO2020112258 - SYSTEMS AND METHODS FOR ACHIEVING BEST EFFORT HOME ROUTE CAPACITY ON PROTECTION PATHS DURING OPTICAL RESTORATION

Publication Number WO/2020/112258
Publication Date 04.06.2020
International Application No. PCT/US2019/055858
International Filing Date 11.10.2019
IPC
H04L 12/707 2013.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12Data switching networks
70Packet switching systems
701Routing or path finding
703Route fault prevention or recovery, e.g. rerouting, route redundancy, virtual router redundancy protocol or hot standby router protocol
707using path redundancy
H04J 14/02 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
14Optical multiplex systems
02Wavelength-division multiplex systems
H04L 12/703 2013.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12Data switching networks
70Packet switching systems
701Routing or path finding
703Route fault prevention or recovery, e.g. rerouting, route redundancy, virtual router redundancy protocol or hot standby router protocol
H04L 12/715 2013.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12Data switching networks
70Packet switching systems
701Routing or path finding
715Hierarchical routing, e.g. clustered networks or inter-domain routing
CPC
H04B 10/032
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
03Arrangements for fault recovery
032using working and protection systems
H04B 10/07953
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
07Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
075using an in-service signal
079using measurements of the data signal
0795Performance monitoring; Measurement of transmission parameters
07953Monitoring or measuring OSNR, BER or Q
H04B 10/70
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
70Photonic quantum communication
H04J 14/0227
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
14Optical multiplex systems
02Wavelength-division multiplex systems
0227Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
H04L 45/22
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
45Routing or path finding of packets in data switching networks
22Alternate routing
H04L 45/28
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
45Routing or path finding of packets in data switching networks
28Route fault recovery
Applicants
  • CIENA CORPORATION [US]/[US]
Inventors
  • AL SAYEED, Choudhuty, A.
  • ATKINSON, David
  • DE LA DURANTAYE, Marc
  • BOERTJES, David, W.
Agents
  • BARATTA, Lawrence, A., Jr.
Priority Data
16/201,31627.11.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEMS AND METHODS FOR ACHIEVING BEST EFFORT HOME ROUTE CAPACITY ON PROTECTION PATHS DURING OPTICAL RESTORATION
(FR) SYSTÈMES ET PROCÉDÉS PERMETTANT D'OBTENIR AU MIEUX LA CAPACITÉ DE LA VOIE DE RETOUR SUR LES CHEMINS DE PROTECTION PENDANT LA RESTAURATION OPTIQUE
Abstract
(EN)
Systems and methods of optical restoration include, with a photonic service (14), in an optical network (10, 100), operating between two nodes (A, Z) via an associated optical modem (40) at each node, wherein each modem (40) is capable of supporting variable capacity, C1, C2,..., CN where C1 > C2 >... > CN, detecting a fault (16) on a home route of the photonic service (14) while the photonic service (14) operates at a home route capacity CH, CH is one of C1, C2,..., CN-1; downshifting the photonic service (14) to a restoration route capacity CR, CR is one of C2, C3..., CN and CR < CH; switching the photonic service (14) from the home route to a restoration route (18) while the photonic service (14) operates at a restoration route capacity CR; and monitoring the photonic service (14) and copropagating photonic services during operation on the restoration route (18) at the restoration route capacity CR for an upshift of the photonic service (14).
(FR)
La présente invention concerne des systèmes et procédés de restauration optique qui comprennent, avec un service photonique (14), dans un réseau optique (10, 100), fonctionnant entre deux nœuds (A, Z) via un modem optique associé (40) à chaque nœud, dans lequel chaque modem (40) est capable de supporter une capacité variable, C1, C2,..., CN où C1 > C2 >... > CN, la détection d'un défaut (16) sur une route d'origine du service photonique (14) alors que le service photonique (14) fonctionne à une capacité de route d'origine CH, CH est l'un des C1, C2,. ..., CN-1; le service photonique (14) est ramené à une capacité de route de restauration CR, CR est l'un des services C2, C3..., CN et CR. < CH; commutation du service photonique (14) de la route d'origine à une route de restauration (18) alors que le service photonique (14) fonctionne à une capacité de route de restauration CR; et surveillance du service photonique (14) et copropagation des services photoniques pendant le fonctionnement sur la route de restauration (18) à la capacité de route de restauration CR pour une montée du service photonique (14).
Also published as
Latest bibliographic data on file with the International Bureau