Patent application number | Description | Published |
20100150024 | Network Router and Method of Configuring a Network Router - Disclosed is a method of configuring routing information in a network router linked into a network. The network router has a forwarding table. The method comprises removing the forwarding table entries which are not used. A network router configured in accordance with the method has a forwarding table comprising only forwarding table entries that are used. | 06-17-2010 |
20100172293 | Lightweight Mobility Architecture - Mobility between access domains in an Internet Protocol (IP) network can be supported by introducing a so-called Mobility Manager (MM) that maintains a database of currently attached devices and their current access domain location. The mobility manager may then detect, for a device registered in the database, a change of access domain from a first access domain to a second access domain by monitoring connection maintenance signaling related to the considered device. The mobility manager should at least obtain an indication of such a change of access domain. In response to a detected change of access domain, the mobility manager arranges for a reconfiguration of the network to forward traffic destined to an IP address of the device in the first access domain to a new location in the second access domain. In this way, the mobility manager allows the device to keep its IP address when moving between access domains. | 07-08-2010 |
20100272107 | TECHNIQUE FOR ADDRESS RESOLUTION IN A DATA TRANSMISSION NETWORK - A technique for address resolution in data transmission networks, for example ARP-based address resolution in IPv4 networks. An embodiment of the technique comprises the following steps performed in a host of the data transmission network: Maintaining an association of at least one physical address with at least one network address range comprising multiple network addresses; obtaining a target network address; comparing the target network address with the network address range to determine an associated target physical address; and providing the determined target physical address, e.g. for initiating a data transmission. | 10-28-2010 |
20100284305 | SETTING UP A VIRTUAL PRIVATE NETWORK - A method for setting up a VPN is described. The VPN is set up in a backbone network having a plurality of PE routers for controlling the transfer of IP traffic to and from CE routers in satellite networks. In a PE router, a VRF is configured for the VPN and populated with local routes for the VPN. A VRF IP loopback address is assigned for the VRF, and a PE IP loopback address is assigned for the ingress PE router. A local route with the VRF and PE IP loopback addresses is then advertised to other PE routers in the backbone network. | 11-11-2010 |
20110022728 | LINK STATE ROUTING PROTOCOLS FOR DATABASE SYNCHRONIZATION IN GMPLS NETWORKS - The present invention relates to a method and apparatus for synchronizing local databases maintained control plane (CP) nodes in a GMPLS network. CP nodes that are not involved in path computation do not need to store the TE information contained in opaque link state advertisements (LSAs). These CP nodes only store that part of an opaque LS which is used during the flooding procedure to verify if the LS is new or updated. This verification is based on a few fields of the LSA that contain link state (LS) identifying information. A CP node that is not involved in path computation stores only the LS identifying information and discards the remainder after the LSA is relayed to it neighbor CP nodes. | 01-27-2011 |
20110032843 | SETTING UP A VIRTUAL PRIVATE NETWORK USING VIRTUAL LAN IDENTIFIERS - A method for setting up a VPN is described. The VPN is set up in a backbone network having a plurality of PE routers for controlling the transfer of IP traffic to and from CE routers in satellite networks. In a PE router, a VRF is configured for the VPN and populated with local routes for the VPN. A VLAN identifier is assigned for the VPN, and advertised to other PE routers in the backbone network. Alternatively, the VLAN identifier may be determined by a predetermined mapping algorithm so it will be unique to the VPN in all PE routers, in which case the advertisement to other PE routers may contain an implicit NULL label. | 02-10-2011 |
20110243024 | METHOD AND APPARATUS FOR INFLUENCING THE SELECTION OF PEER DATA SOURCES IN A P2P NETWORK - Disclosed is a method of selecting a data source node from a plurality of data source nodes, the selected data source node being used to send data to a data requesting node over a packet data network. The method includes, at an intermediate node of the network, intercepting at least one message sent to or from the data requesting node, the message(s) relating to data source node suitability, determining a cost of communication between the data requesting node and each of the data source nodes to which the message(s) relate, and influencing data source node suitability information sent to the data requesting node to take account of the cost to enable the data requesting node to use the information to select a data source node. | 10-06-2011 |
20110277009 | Supporting Functions for Quality-Assured P2P VOD Services - The present invention relates to a method for controlling downloading of video segments or segmented video stream to a subscriber client unit, and a subscriber client unit adapted to perform said method. One object of the invention is to guarantee seamless playback and the optimal server load. Said object is by a method and a subscriber client unit that is controlled by a segment selector (SSA) and a server bandwidth control (SBC) algorithm. | 11-10-2011 |
20120039164 | System And Method Of Implementing Lightweight Not-Via IP Fast Reroutes In A Telecommunications Network - A system, method, and node for implementing lightweight Not-via Internet Protocol fast reroutes of a packet in a telecommunications network between a first node and a destination node. The method determines a shortest path between the first node and the destination node and two redundant trees between the first node and the destination node. Each redundant tree provides an alternate path from the first node and the destination node. When a failure in a link between the first node and the destination node is detected, the packet is forwarded to the destination node via a first redundant tree, and if not available, via a second redundant tree. If the second redundant tree is not available, the packet is dropped. If no failure in the link between the first node and the destination node is detected, the packet is sent via the determined shortest path to the destination node. | 02-16-2012 |
20120079056 | Network Cache Architecture - There is described a method and apparatus for sending data through one or more packet data networks. A stripped-down packet is sent from a packet sending node towards a cache node, the stripped down packet including in its payload a pointer to a payload data segment stored in a file at the cache node. When the stripped-down packet is received at the cache node, the pointer is used to identify the payload data segment from data stored at the cache node. The payload data segment is inserted into the stripped-down packet in place of the pointer so as to generate a full size packet, which is sent from the cache node towards a client. | 03-29-2012 |
20120092997 | METHOD AND APPARATUS FOR REDUCING TRAFFIC IN A COMMUNICATIONS NETWORK - A method is provided of reducing traffic in or relating to a service provider network. The service provider network comprises a core packet network, a plurality of first access points ( | 04-19-2012 |
20120214492 | Relocation of Mobility Anchor for Nomadic Subscribers - A method, a mobility node | 08-23-2012 |
20120224578 | TUNNEL GATEWAY MANAGED CACHING ARCHITECTURE - In an access network, a tunnel gateway (TGW) managed network caching architecture is proposed. The proposed TGW receives a terminal request directed to a data server for a flow of data. The terminal request is forwarded to the TGW through a tunnel from a tunnel endpoint located below the TGW. The TGW selects a network cache to handle the data traffic of the flow requested by the requesting terminal. The TGW then redirects the terminal request to the selected network cache to provide the requested service. The TGW redirects the terminal request through a tunnel whose endpoint is the selected network cache. | 09-06-2012 |
20130077475 | Optimizing Endpoint Selection of MRT-FRR Detour Paths - A method is described to be implemented by a node in a network. The method is for selecting an endpoint for a maximally redundant tree-fast reroute (MRT-FRR) detour path to optimize detour path cost or length across the network. The method defines a set of steps including selecting a destination node and next hop failure to calculate detour paths. A clean set of nodes for the network is then calculated, where the clean set of nodes are nodes in the network that are not impacted in reaching the destination node by the failure in the given next hop. A candidate node for the endpoint of the detour p path is selected from the set of clean nodes based on any one of a plurality of configured options and forwarding of data packets is configured to the selected candidate as the endpoint of the detour path to the destination node. | 03-28-2013 |
20130077476 | Incremental Deployment of MRT Based IPFRR - A method supports incremental deployment of maximally redundant trees-fast reroute (MRT-FRR) by supporting MRT-FRR within an island of nodes in the network. A destination node and next hop failure selected to calculate detour paths. The clean set of nodes is calculated. The clean set of nodes is expanded with extended island candidate nodes that are reachable by a border node within the island via shortest path first (SPF) to the destination node that does not pass through the failed next hop. The extended island candidate nodes that are reachable by the border node within the island via SPF are part of an extended island. An MRT is calculated for each extended island candidate node. A candidate node is selected from the clean set of nodes according to a configured optimization option to serve as the endpoint of detour path to a destination node. | 03-28-2013 |
20130089094 | Method and Apparatus for Dissemination of Information Between Routers - There is provided a method for use by a first processing unit in or to be installed in a router. The first processing unit is configured or responsible for routing (or forwarding) packets to and from other routers. There may be other such first processing units in or installed in the router. In a first step (S | 04-11-2013 |
20130232259 | Method and Apparatus for Handling Network Resource Failures in a Router - There is provided a method for use by a router in a communications network. Forwarding information is maintained (S | 09-05-2013 |
20130258963 | Technique of Processing Network Traffic That Has Been Sent on a Tunnel - A technique of processing network traffic that is sent on a tunnel between a first tunnel and a second tunnel node in a communication network is provided. A device implementation of this technique comprises an enhanced network address translation, eNAT, component ( | 10-03-2013 |