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1. EP2834942 - APPARATUS AND METHOD FOR COMPUTING END-TO-END PATHS THROUGH A NETWORK COMPRISING A PLURALITY OF NETWORK DOMAINS

Office
European Patent Office
Application Number 12717071
Application Date 05.04.2012
Publication Number 2834942
Publication Date 11.02.2015
Publication Kind B1
IPC
H04L 12/721
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12Data switching networks
70Packet switching systems
701Routing or path finding
721Routing procedures, e.g. shortest path routing, source routing, link state routing or distance vector routing
H04L 12/24
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12Data switching networks
02Details
24Arrangements for maintenance or administration
H04L 12/715
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
H04L 12/717
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12Data switching networks
70Packet switching systems
701Routing or path finding
717Centralised routing
H04L 12/723
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12Data switching networks
70Packet switching systems
701Routing or path finding
721Routing procedures, e.g. shortest path routing, source routing, link state routing or distance vector routing
723Label or tag based routing, e.g. multi-protocol label switching or generalised multi-protocol label switching
CPC
H04L 41/12
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
41Arrangements for maintenance or administration or management of packet switching networks
12network topology discovery or management
H04L 45/04
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
45Routing or path finding of packets in data switching networks
04Interdomain routing, e.g. hierarchical routing
H04L 45/42
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
45Routing or path finding of packets in data switching networks
42Centralized routing
H04L 45/44
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
45Routing or path finding of packets in data switching networks
44Distributed routing
H04L 45/50
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
45Routing or path finding of packets in data switching networks
50using label swapping, e.g. multi-protocol label switch [MPLS]
H04L 45/02
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
45Routing or path finding of packets in data switching networks
02Topology update or discovery
Applicants ERICSSON TELEFON AB L M
Inventors CAVIGLIA DIEGO
BOTTARI GIULIO
CECCARELLI DANIELE
Designated States
Title
(DE) VORRICHTUNG UND VERFAHREN ZUR BERECHNUNG VON END-TO-END-PFADEN DURCH EIN NETZWERK MIT MEHREREN NETZWERKBEREICHEN
(EN) APPARATUS AND METHOD FOR COMPUTING END-TO-END PATHS THROUGH A NETWORK COMPRISING A PLURALITY OF NETWORK DOMAINS
(FR) APPAREIL ET PROCÉDÉ DE CALCUL DE TRAJETS DE BOUT EN BOUT À TRAVERS UN RÉSEAU COMPRENANT UNE PLURALITÉ DE DOMAINES DE RÉSEAU
Abstract
(EN)
A network architecture is provided for enabling end-to-end paths to be computed across a plurality of network domains. The network architecture comprisesa plurality of child path computation elements associated with a plurality of respective network domains, each child path computation element adapted to compute a path segment within its respective network domain. A parent path computation element adapted to compute an end-to-end path across a plurality of network domains in conjunction with the plurality of respective child path computation elements.

(FR)
L'invention concerne une architecture de réseau pour permettre à des trajets de bout en bout d'être calculés à travers une pluralité de domaines de réseau. L'architecture de réseau comprend une pluralité d'éléments de calcul de trajet enfants associés à une pluralité de domaines de réseau respectifs, chaque élément de calcul de trajet enfant étant conçu pour calculer un segment de trajet à l'intérieur de son domaine de réseau respectif. Un élément de calcul de trajet parent est conçu pour calculer un trajet de bout en bout à travers une pluralité de domaines de réseau conjointement avec la pluralité d'éléments de calcul de trajet enfants respectifs.

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