Alcatel Lucent

Alcatel

Martin Vigoureux

Dinh Thai Bui

Michel Le Pallec

Mustapha Aissaoui

Emmanuel Dotaro

Wim Henderickx

Laurent Ciavaglia

Richard Douville

Dominique Verchere

Dimitri Papadimitriou

Annalisa Morea

Gunter Van De Velde

Marc Lorret

A method for controlling the establishment of a connection with a transport network, said message consisting of extracting from a first signaling message a piece of switching status information for a transport switch of said node, configuring said transport switch within said switching status (), estimating () a piece of time information regarding the configuration of said transport switch and generating a second signaling message intended for a network element of said transport network, said second signaling message comprising a piece of time information for determining a configuration end date of said transport switch. Said second signaling message may be transmitted without waiting for the end of communication of said transport switch. A controller is also described.

Method for controlling the establishment of a connection within a transport network

A method for establishing a monitoring connection associated to a traffic connection established in a network e.g. of MPLS type, the method comprising the steps of: sending a connection establishment message from a first node (B) to a second node (D) of the communication network to establish a monitoring connection () between the first and second nodes, wherein the first and second nodes are disposed in a path of the traffic connection and the connection establishment message is sent along the traffic connection path,sending a make-before-break request from the first node (B) to an ingress node (A) of the traffic connection to cause the ingress node to re-establish the traffic connection along the traffic connection path using a make-before-break signaling procedure,at the first node, processing a re-establishment signaling message sent by the ingress node so as to encapsulate the re-established traffic connection () into the monitoring connection ().

Methods for establishing a traffic connection and an associated monitoring connection

A method for establishing a traffic connection () and an associated monitoring connection () in a network () e.g. of MPLS type, comprises:

A communication device (B) for a communication network with an IP control plane, comprises communication resources to transfer data in said network, a signaling controller capable of receiving an open connection message comprising a first traffic descriptor () for a down data flow to be transmitted by an initiator node (A) to a terminator node (C) and a second traffic descriptor () for an up data flow to be transmitted by the terminator node from the initiator node, and an admission controller capable of evaluating communication resources of the communication device available for said down flow and said up flow as a function of the first and second traffic descriptors, said signaling controller being capable of producing an updated open connection message as a function of said received open connection message and said available communication resources.

Method for setting up a two-directional connection

In order to determine a spectral route for a given connection in an optical telecommunications network (T) between a starting node (ON) and a destination node (ON) of the network, the method consists in: using a conventional routing method to determine one or more candidate spatial routes (Route i, Route) connecting the starting node (ON) to the destination node (ON), each candidate spatial route comprising a sequence of route segments, each segment connecting two nodes of the network directly and being adapted to support a plurality of spectral routes.

Method of determining a spectral route for a given connection in an optical telecommunications network

A control device (D) for a node (LCR) in an Ethernet communications network having a GMPLS control plan and through which node a connection for setting up is to pass, includes control means (MC) arranged, in the event of said node (LCR) receiving a connection setup message containing at least one first value representative of the sum since the beginning of the connection for setting up of the local values of an additive parameter as introduced in each of the preceding nodes (LCR) in the connection, to determine a second value that is a function of the first value and of the local value as introduced by the node (LCR), and then to compare the second value with a selected threshold so as to determine whether the connection can accept a maximum value for the additive parameter at the node, and to replace the first value in the received message with the second value as determined, at least when the connection can accept the maximum value.

Device for locally controlling one or more parameters of a connection to be set up, for an element of an ethernet communications network with a GMPLS control plan

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Paris, France

Martin Vigoureux