Patent application number | Description | Published |
20090010154 | Protection Scheme - A protection scheme for a metro optical network involves programming ingress nodes and egress nodes with a primary multicast label switched path (LSP) and a back-up LSP to provide one-to-one protection. The primary and back-up LSPs are configured prior to the occurrence of a network fault to allow the network to transmit multicast communication when the fault occurs. Particularly, multicast communications are sent on the primary LSP during normal operation. However, when a network fault occurs, the nodes also send a duplicate multicast communication over the back-up LSP. Configuring the primary and back-up LSPs prior to the fault occurring avoids the need for signalling to establish a working LSP after a fault occurs. | 01-08-2009 |
20100002578 | Resiliency Schemes in Communications Networks - A connection oriented communications network | 01-07-2010 |
20100085982 | Optimized Synchronization of Mac Address Tables in Network Interconnection Apparatuses - Network interconnection apparatus ( | 04-08-2010 |
20110103225 | BANDWIDTH SIGNALLING - A telecommunication network comprising a plurality of nodes including a content source ( | 05-05-2011 |
20110299551 | Method and Apparatus for Transferring Data Packets Between a First Network and a Second Network - There is provided method and apparatus for transferring data packets between a first network and a second network using a node arrangement. The node arrangement has at least two primary nodes connected to the second network. Each primary node is connected to the first network using a respective first port and to a secondary node coupled to the second network using respective second ports. The second ports are arranged into respective link aggregation groups. The primary nodes are connected by respective inter-node ports. The method comprises the step of determining a service identifier associated with a packet received at a said primary node from the first network. The method comprises the further step of switching the packet to the second network using the respective second ports or to the other primary node using the inter-node port dependent on a service identifier associated with said packet. | 12-08-2011 |
20120020207 | RE-ROUTING TRAFFICE IN A COMMUNICATIONS NETWORK - Method of re-routing traffic in a communications network ( | 01-26-2012 |
20120155283 | INTERWORKING FOR OAM INFORMATION EXCHANGE | 06-21-2012 |
20120188867 | RECOVERY OF TRAFFIC IN A CONNECTION-ORIENTED NETWORK - A connection-oriented network ( | 07-26-2012 |
20120287818 | MULTIPOINT-TO-MULTIPOINT SERVICE FOR A COMMUNICATIONS NETWORK - A multipoint-to-multipoint service is provided between a set of edge nodes of a communications network. The network comprises at least two sub-networks and an intermediate node at a boundary between sub-networks. For each pair of edge nodes comprising an edge node in a first of the sub-networks and an edge node in a second of the sub-networks, a multi-segment pseudowire connection is configured between the pair of edge nodes. The pseudowire connection passing via at least one intermediate node. At the intermediate node forwarding data is configured which specifies a forwarding relationship between pseudowire segments corresponding to the multi-segment pseudowire connections. A topology of Label Switched Paths carry the multi-segment pseudowires. Edge nodes within a sub-network can be connected with a mesh topology or a hub-and-spoke topology. | 11-15-2012 |
20130010813 | Method and Apparatus for Optimizing Packet Timing Transport - There is provided a method of optimizing timing packet transport in a network node, the method comprising using a locally available stable frequency reference at the network node to provide a pre-determined network node transit time for timing packets in at least one direction into or out of the network node. There is also provided a network node comprising a locally available stable frequency reference and circuitry adapted to apply a pre-determined network node transit time, L, to all timing packets transiting the network node in at least one direction into or out of a network node dependent on the locally available stable frequency reference. | 01-10-2013 |
20130021918 | FAULT MONITORING IN CONNECTION-ORIENTED NETWORKS - The invention relates to a method of fault monitoring in a fault monitoring entity of a network node of a network having at least a first connection-oriented network layer, having first protection measures associated therewith, and a second connection-oriented network layer, having second protection measures associated therewith. In a first step the service condition status of the first network layer is monitored using the first protection measures. In a second step the second network layer protection measures are determined for onward transmission within the second network layer depending on the service condition status of the first network layer. Since the network node is aware of the monitored status condition of both the first and second layers the protection mechanisms for the first network layer and the second network layer can be co-ordinated and the second network layer protection measure for onward transmission may be determined for optimum network fault protection operation. | 01-24-2013 |
20130039220 | CONFIGURATION OF SYNCHRONISATION NETWORK HAVING SYNCHRONIZATION TRAILS FOR TIME SYNC AND FREQUENCY SYNC - Configuring a node ( | 02-14-2013 |
20140043976 | METHOD AND DEVICE FOR CREATING AND FOR RECEIVING A DATA PACKET WITH DISCARD ELIGIBLE INFORMATION - Aspects of the present disclosure relates to a method and a device for creating a data packet with discard eligible information and to a method and device for receiving a data packet with discard eligible information. Specifically, one aspect of the present disclosure provides a method for creating a data packet, containing a data payload and at least one label determining onward routing for the data packet, for onward transmission in a data communication system, a machine readable medium for implementing the method, and a corresponding device. In a first step a discard eligibility associated with the data packet is determined. In a second step, discard eligible information is encoded in a label determining onward routing for the data packet. In a third step an outgoing data packet including the label is generated. | 02-13-2014 |