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| Number | Title | Issue Date |
| 8175107 | Network routing based on MAC address subnetting A method for routing data on a fat-tree network using network switches includes assigning a customized MAC address to each host device in the network. The customized MAC address has a set of bits for each level in the fat-tree network, each set of bits corresponding... | 05/08/2012 |
| 8170040 | Fully connected generalized butterfly fat tree networks A generalized butterfly fat tree network comprising (logd N) stages is operated in strictly nonblocking manner for unicast and in rearrangeably nonblocking manner for arbitrary fan-out multicast when s≧2, and is operated in strictly nonblocking manner f... | 05/01/2012 |
| 8144718 | Control system having a plurality of spatially distributed stations, and method for transmitting data in such a control system In a method for transmitting data in a control system, a first station generates a data frame having a plurality of data fields. At least one data field to be filled with transmission data is clearly assigned to each further station. The data frame is transmitted as... | 03/27/2012 |
| 8059669 | Tree-type broadcast system, reconnection process method, node device, node process program, server device, and server process program A node device in a tree-type broadcast system having hierarchy levels of node devices while locating a broadcast device at its top, whereby information is sequentially transferred from a higher hierarchy level to a lower hierarchy level, the node device including: | 11/15/2011 |
| 8023519 | Dense mode coding scheme A lookup table for searching for a longest prefix match for a key is disclosed. The lookup table provides a match for a key in a single search cycle. The number of matches stored in the lookup table is maximized by storing each match in only one location in the look... | 09/20/2011 |
| 8000336 | Spanning tree root selection in a hierarchical network Communication apparatus includes a hierarchical network of switches, which includes at least a first plurality of spine switches, interconnected by a control channel, and a second plurality of edge switches having internal ports coupled to communicate via respective... | 08/16/2011 |
| 7978718 | Small group multicast in a computer network A data structure is stored in a memory of a router, the router located along a path between a source end station and a plurality of destination end stations in a multicast distribution tree. In response to receipt of trace packets containing a listing of network dev... | 07/12/2011 |
| 7969997 | Video communications in a peer-to-peer network Packet-based delivery of video content is facilitated using a peer-to-peer network. According to an example embodiment of the present invention, a packet-based video stream is passed over a peer-to-peer network, with the packets in the stream scheduled and delivered... | 06/28/2011 |
| 7924856 | Tree-shaped broadcasting system, packet transmitting method, node device, and computer-readable medium A lost packet in a plurality of packets broadcasted from a broadcasting apparatus is detected. Packet complement request information indicative of a packet complement request for complementing the lost packet is transmitted to a device in a high hierarchical level, ... | 04/12/2011 |
| 7920581 | Tree-type broadcast system, method of participating and withdrawing tree-type broadcast system, node device, and node process program A node device having a plural hierarchy levels in a tree-like shape while placing a broadcast device at a top of the levels and connecting the node devices through a communication means, wherein content data is sequentially transferred from the node device at an upp... | 04/05/2011 |
| 7916741 | System and method for preventing count-to-infinity problems in ethernet networks A system and method for preventing a count-to-infinity problem in a network using epochs of sequence numbers in protocol messages to eliminate stale protocol information in the network and to allow the forwarding topology to recover in merely one round trip time acr... | 03/29/2011 |
| 7899067 | Method and apparatus for generating and using enhanced tree bitmap data structures in determining a longest prefix match Methods and apparatus are disclosed for generating and using an enhanced tree bitmap data structure in determining a longest prefix match, such as in a router, packet switching system. One implementation organizes the tree bitmap to minimize the number of internal n... | 03/01/2011 |
| 7894463 | Topological approach for improving network and system utilization in a non-uniform network One embodiment of the present invention provides a system that facilitates improved resource allocation in a network. During operation, the system determines one or more metrics value for a node based on a characteristic of the node and assigns nodes within the netw... | 02/22/2011 |
| 7856025 | Method and system for intercommunicating between private network user and network with QoS guarantee A method and a system for intercommunicating between a private network user and a network with QoS guarantee are provided. The bearer control layer entity and the application layer entity obtain the address (port) translation information in the network with independ... | 12/21/2010 |
| 7835378 | Root node redundancy for multipoint-to-multipoint transport trees A mechanism is provided to configure a plurality of transport trees in a transport network, each of which correspond to a native tree (e.g., a bidirectional multicast tree). In embodiments of the present invention, each of the plurality of transport trees has a uniq... | 11/16/2010 |
| 7773615 | Connection state control device, connection state control method, and connection state controlling program A connection state control device is provided that can promptly perform a reproducing operation by smoothly switching channels at each node and reduce the load on the management server in a case where operations are performed so as to sequentially change distributio... | 08/10/2010 |
| 7764701 | Methods, systems, and products for classifying peer systems Methods, systems, and products are disclosed for classifying peer systems to an ontology. The ontology is stored in memory of a central server. A classification request is received to classify a peer system to the ontology. Peer information is also stored for each p... | 07/27/2010 |
| 7760746 | Cascading configuration using one or more configuration trees A method for configuring a product includes locating one or more desired nodes from one or more configuration hierarchies of configuration nodes and determining a configuration based on the one or more desired nodes from the one or more configuration hierarchies of ... | 07/20/2010 |
| 7746880 | Method and arrangement relating to messaging An arrangement for handling control signal messaging in a distributed system comprising a number of sending nodes and a number of receiving nodes and implementing a control signaling communication protocol. The sending and/or the receiving node is adapted to send an... | 06/29/2010 |
| 7710986 | Multicast architecture for wireless mesh networks A multicast architecture and method of operation for multi-hop wireless mesh networks is provided. The multicast architecture is above the network infrastructure to identify a group of clients. These clients share the same application and communicate to each other b... | 05/04/2010 |
| 7684421 | Information routing in a distributed environment An information management system for a device network is disclosed. The information management system may include a service requester node, a monitoring node, and a service provider node. The system may include a service oriented request message including a message ... | 03/23/2010 |
| 7668185 | Distribution apparatus, receiving apparatus tree-type distribution system, and information processing method etc. It is the object of the present invention to provide a processing apparatus, a tree-type network system, processing program and recording method that are capable of performing requests to a higher-order apparatus at the same time, while reducing the load that is con... | 02/23/2010 |
| 7664125 | Indication forwarding in a distributed environment Described are techniques for performing indication forwarding. At an indication consolidator, a request is received from a client to receive indications about a plurality of nodes in accordance with first filter information. A communication structure for forwarding ... | 02/16/2010 |
| 7646779 | Hierarchical packet scheduler using hole-filling and multiple packet buffering A hierarchical packet scheduler using hole-filling and multiple packet buffering. Packet references are enqueued into a hierarchical packet scheduler, wherein the hierarchical packet scheduler includes one or more levels, each level including one or more schedulers ... | 01/12/2010 |
| 7633960 | Dense mode coding scheme A lookup table for searching for a longest prefix match for a key is disclosed. The lookup table provides a match for a key in a single search cycle. The number of matches stored in the lookup table is maximized by storing each match in only one location in the look... | 12/15/2009 |
| 7623534 | Method and systems for content access and distribution Distribution of content between publishers and consumers is accomplished using an overlay network that may make use of XML language to facilitate content identification. The overlay network includes a plurality of routers that may be in communication with each other... | 11/24/2009 |
| 7586927 | Multistage cascade arbiter Multiple comparators compare the enable and priority values for multiple inputs and select a winner from one of the inputs. Multiple comparator stages each include one or more of the comparators. Each comparator stage selects winners from the outputs of a preceding ... | 09/08/2009 |
| 7551635 | SONET method and system having network service access point addressing A synchronous optical network (SONET) system having multi-hierarchal network service access point (NSAP) addressing includes electrically linked network elements (NEs) and first and second level routing areas which each include at least one NE. The NEs include devic... | 06/23/2009 |
| 7551634 | Communication network system A communication network system includes: a plurality of lower hierarchy networks, each having a plurality of first relay apparatuses; and an intermediate hierarchy network having a plurality of second relay apparatuses for connecting the plurality of lower hierarchy... | 06/23/2009 |
| 7535914 | Communications network A datagram network is operated by placing a group address in the source address field of the datagram. Nodes within the datagram network forward the datagram in dependence on the contents of the source address field. This provides many of the scalability advantages ... | 05/19/2009 |
| 7512141 | Domain configuration in an ethernet OAM network having multiple levels A domain configuration system and method operable in an Ethernet OAM network having multiple levels of OAM domains. A port of a first end bridge of the network is configured as a first MEP node belonging to a predetermined OAM domain having a particular level. GARP ... | 03/31/2009 |
| 7502376 | Layer-2 network with virtual private LAN service A method to provide a loop-free telecommunication network comprising end-users interconnected through one or more Metropolitan Area Network and/or Wide Area Network providing Virtual Private Local Area Network Service (VPLS) and possible geographically dispersed Lay... | 03/10/2009 |
| 7463638 | Up-tree topology trace for network route tracing A network route tracing system traces a path through a network and identifiesnetwork components and communications links affected by the path. According to one embodiment of the present invention, a route is traced between two hosts in a network. The network is repr... | 12/09/2008 |
| 7460549 | Resource management for ad hoc wireless networks with cluster organizations An initiator node in a local cluster included in a wireless network receives an admission request to execute an application comprising a set of tasks. If the initiator node is unable to map the set of tasks to nodes included in the local cluster, the local cluster h... | 12/02/2008 |
| 7443845 | Apparatus and method for a lightweight, reliable, packet-based transport protocol A fast, lightweight, reliable, packet-based protocol that operates independent of the type of networking protocol used by the underlying physical layer of the network is disclosed. More specifically, the packet based protocol operates independently of or is capable ... | 10/28/2008 |
| 7440414 | Communication relay device with redundancy function for line in network in accordance with WAN environment and communication system using the same A communication relay device with a redundancy function for a line in a network under a WAN environment is connected to another, having a one-to-one relationship at both ends of each line by first and second ports to configure a redundancy channel between lines. A c... | 10/21/2008 |
| 7433362 | System and method for SONET NSAP addressing A synchronous optical network (SONET) system having multi-hierarchal network service access point (NSAP) addressing includes a plurality of network elements (NEs) electrically linked, and a first level routing area and a second level routing area that each includes ... | 10/07/2008 |
| 7428237 | Fast convergence with topology switching A system for rapidly switching at least one virtual local area network (VLAN) from a first loop-free topology to a second loop-free topology in response to a failure within the first loop-free topology. Each VLAN has one “logical” VLAN which represents the netwo... | 09/23/2008 |
| 7428221 | Arrangement for providing network prefix information from attached mobile routers to a clusterhead in a tree-based ad hoc mobile network Mobile routers establish a tree-based network topology in an ad hoc mobile network, the tree-based network topology having a single clusterhead and attached mobile routers. Each attached mobile router has a default egress interface configured for sending messages to... | 09/23/2008 |
| 7424524 | Distributed means of organizing an arbitrarily large number of computers A technique for organizing a plurality of computers such that message broadcast, content searching, and computer identification of the entire collection or a subset of the entire collection may be performed quickly without the use of a controlling computer. The tech... | 09/09/2008 |
