Patent application number | Description | Published |
20090028141 | Method and device for controlling admission to a guaranteed quality of service in a mpls network - The invention concerns a method and a device for controlling admission to a guaranteed quality of service in a MPLS network ( | 01-29-2009 |
20090040943 | METHOD FOR CONTROLLING ROUTING IN A PACKET NETWORK SUPPORTED BY A TRANSPORT NETWORK - A method of controlling routing in a packet network supported by a transport network allowing the dynamic creation/suppression of links for transporting packets of said packet network, said method including a routing step, a step of informing other routers of said network of the metric assigned to each link of the packet network, and a step of creating/destroying a link. The link may have three states: a non-connected state if said two routers cannot be directly connected, a virtual connection state wherein a virtual metric is assigned to said link between said head end router and said tail end router of the same communication, and a real connection state wherein a real metric is normally assigned to said link. | 02-12-2009 |
20100008220 | System for Securing the Access to a Destination in a Virtual Private Network - A system for securing the access to a destination of a virtual private network (VPNA) connected to a nominal access router (PE | 01-14-2010 |
20100008222 | Routing Method in a Label Switching Network - A head router ( | 01-14-2010 |
20100020679 | Core Router Capable of Securing the Output Router of an Autonomous System - A core router adapted to back up a nominal output router. This kind of core router of a first autonomous subsystem is connected to a nominal output router of the first autonomous system adapted to route traffic whose destination is a second autonomous system, the first autonomous system further including a back-up output router adapted to route traffic whose destination is the second autonomous system. The core router includes means for identifying a router of the first autonomous system, adapted to identify a router adapted to route traffic whose destination is the second autonomous system in the event of a failure affecting traffic to said nominal output router, the identified router being either the back-up output router or a protector router of the first autonomous system, this protector router being adapted to redirect traffic whose destination is the second autonomous system via said back-up output router; means for detecting a failure affecting routing of traffic to said nominal output router; and means for redirecting traffic whose destination is the second autonomous system in a predetermined route in a tunnel to the identified router, said tunnel not passing through the nominal output router. | 01-28-2010 |
20110019537 | METHOD OF ROUTING A DATA PACKET VIA A ROUTER IN A PACKET COMMUNICATIONS NETWORK SUPPORTED BY A TRANSPORT NETWORK - The invention relates to a method of routing a data packet via a router ( | 01-27-2011 |
20110040885 | MECHANISM FOR UPDATING PARAMETERS OF A SESSION SET UP THROUGH A VIRTUAL CIRCUIT - A method of communicating through a pseudo-wire set up between first and second provider edge nodes of a packet-switched network through at least one router of the packet-switched network, said method comprising, during a phase of transmitting data through the pseudo-wire in accordance with parameters defining a first communication session set up between the first and second provider edge nodes steps of: the second provider edge node receiving a set up message a of second communication session between the first and second provider edge nodes, the setting up message comprising parameters defining the second session, and the second equipment sending the router a notification message comprising parameters defining the second session and indicating switching of data transmission to the second communication session, the phase of transmitting data continuing in accordance with the parameters defining the second communication session. | 02-17-2011 |
20110044352 | TECHNIQUE FOR DETERMINING A POINT-TO-MULTIPOINT TREE LINKING A ROOT NODE TO A PLURALITY OF LEAF NODES - A method is provided for determining a point-to-multipoint tree connecting a root node to a plurality of leaf nodes (some nodes in different domains) used by a path calculation entity associated with a current domain. The method comprises receiving from at least one other path calculation entity associated with a downstream domain at least one message including a first set of identifiers including at least one identifier of a bunch of branches comprising at least one branch and a respective cost associated with said bunch, the bunch comprising at least one branch enabling connection to leaf nodes in downstream domains, and determining at least one new bunch of branches comprising at least one branch as a function of said at least one first set received, said new bunch of branches having a minimum cost and making it possible also to contact the leaf nodes of the current domain. | 02-24-2011 |
20110069609 | TECHNIQUE FOR PROTECTING A POINT-TO-MULTIPOINT PRIMARY TREE IN A CONNECTED MODE COMMUNICATIONS NETWORK - The invention relates to a technique for protecting a point-to-multipoint primary tree in a connected mode communications network set up from a primary root node to leaf nodes in the event of a fault affecting the primary root node by means of a back-up tree between a back-up root node and at least one merge node, said at least one merge node belonging to a branch of the primary tree coming from the primary root node. A merge node executes the following steps:
| 03-24-2011 |
20110173492 | TECHNIQUE FOR PROTECTING LEAF NODES OF A POINT-TO-MULTIPOINT TREE IN A COMMUNICATIONS NETWORK IN CONNECTED MODE - A technique protects, in a communications network, a point-to-multipoint primary tree between a root node and primary leaf nodes of the network if a failure occurs affecting one of the primary leaf nodes. One network node receives from another upstream network node a request to protect the primary tree via a backup branch leading to a backup leaf node situated downstream from said node, if a failure affecting one of the primary leaf nodes to be protected occurs, the backup leaf node being associated with the primary leaf node to be protected. If the node is connected directly to the downstream primary leaf node to be protected, it configures a backup routing rule for routing packets from an upstream primary branch to the downstream backup branch and, possibly, to the downstream primary branch(es) and is activated in the event of a failure affecting the primary leaf node to be protected. | 07-14-2011 |
20110261824 | VIRTUAL CIRCUIT CONFIGURATION METHOD - A method and apparatus are provided for configuring a virtual circuit set up between a first and a second terminal installation. The virtual circuit is carried by an underlying path including a first link set up between the first terminal installation and an intermediate installation, and a second link set up between the intermediate installation and the second terminal installation. A third link of the underlying path is set up between the intermediate installation and a third terminal installation. The method includes a step of configuring the third terminal installation, on completion of which the latter is able to process in reception a data stream transmitted through the virtual circuit. | 10-27-2011 |
20120086805 | SYSTEM FOR PROVIDING A SERVICE, SUCH AS A COMMUNICATION SERVICE - A system an method are provided for providing a service, such as telemonitoring, in particular via the Internet. The system includes a terminal device of a communication network having elements for establishing a connection with a service provider device through at least the communication network, and an application server able to receive a service request from the service provider device on the connection. Thus, the terminal device can make itself accessible to a service provider device as soon as it is put into service. Furthermore, the fact that the terminal device is at the initiative of the connection for this service secures access to the data of the terminal device relating to this service. | 04-12-2012 |