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| Number | Title | Issue Date |
| 7680053 | Inter-device flow control A network switching device comprises first and second ports. A queue communicates with the second port, stores frames for later output by the second port, and generates a congestion signal when filled above a threshold. A control module selectively sends an outgoing... | 03/16/2010 |
| 7675860 | Method and apparatus for determining a preferred backup tunnel to protect point-to-multipoint label switch paths A method, apparatus and computer program product for determining a preferred backup path to protect a point-to-multipoint label switching path is presented. A point-to-multipoint backup path is computed for each node located upstream from a branching node, the backu... | 03/09/2010 |
| 7668103 | Inter-device flow control A system with switching capability comprises a controlling device, a first switching device, and first and second ports. The first port communicates with the controlling device. A control module selectively instructs the second port to assert flow control when a flo... | 02/23/2010 |
| 7668104 | Inter-device flow control A network switching system comprises a managing device and a first switching device comprising first and second ports. The first port communicates with the managing device. A queue communicates with the second port, stores frames for later output by the second port,... | 02/23/2010 |
| 7664036 | Dynamic real-time quality management of packetized communications in a network environment The present invention provides a dynamic real-time quality management of packetized communications in a network environment. Packetized communications are monitored by and exchanged between wireless Access Points (APs) and wireless terminals or by quality monitoring... | 02/16/2010 |
| 7660254 | Optimization of distributed tunnel rerouting in a computer network with coordinated head-end node path computation In one embodiment, head-end nodes receive a list of tunnels to be rerouted from a particular link of an intermediate node. If a head-end node is unable to reroute a tunnel for which it is the head-end node using conventional distributed routing, each head-end node e... | 02/09/2010 |
| 7636314 | System and method for routing incoming modem calls for dial up internet access A system and method for receiving dial-up Internet access calls with an available remote Internet Service Provider modem is provided. A data tandem in a modem center to which a data call is directed determines whether it can receive the call with a modem associated ... | 12/22/2009 |
| 7630317 | Transmission bandwidth control device Included are a network information database for storing the statistical information collected from a router, a user request processing unit for accepting and processing a flow forwarding request from a user terminal connected to the network, a route control unit for... | 12/08/2009 |
| 7626936 | Traffic matrix computation for a backbone network supporting virtual private networks This invention provides a more effective method for capacity planning and traffic engineering of packet networks that connect Virtual Private Network (VPN) sites. A distributed architecture efficiently computes traffic matrixes that show the number of bytes and/or p... | 12/01/2009 |
| 7613121 | Method and system for faciliating data routing in a congested network Congestion adaptive data routing is leveraged to provide a substantial increase in data throughput in networks with data congestion. By continuously adapting the data routes when a congested route is encountered, the data can reach its destination via alternate rout... | 11/03/2009 |
| 7613120 | Dynamic wide area network packet routing Methods, apparatuses, articles of manufacture, and systems for creating on a first router a first local route segment, notifying a second router of the first local route segment, receiving by the second router the notification, receiving by the second router a packe... | 11/03/2009 |
| 7606159 | Method and apparatus for updating best path based on real-time congestion feedback Techniques are provided for updating best path based on real-time congestion feedback. A method comprises monitoring packets received from an internetworked system, wherein the packets are received on one of a plurality of external interfaces of a networking device;... | 10/20/2009 |
| 7602726 | Method and system for optimizing link aggregation usage during failures A method and system for optimizing link aggregation usage during failures is disclosed. The method and system are deployed in a network having a data plane in which data traffic flows between nodes coupled by a link formed by an aggregation of a number of individual... | 10/13/2009 |
| 7580359 | Method and system for maximizing network capacity utilization in multiprotocol label switched networks by moving label switched paths Various exemplary embodiments relate to a method including one or more of: transmitting a forward entity from the source node along forward links through the network toward the terminal node to determine links for the new path; upon encountering a node having insuff... | 08/25/2009 |
| 7577097 | Compound transmission control protocol Systems and methods for Compound TCP are described. In one aspect, a single TCP connection is opened for communication of data over a compound stream between first and second computing devices. The compound stream includes two or more logical data streams to emulate... | 08/18/2009 |
| 7567516 | Courteous routing In a communication network comprising nodes and links between the nodes, a controller node disseminates routing information including nodal routing tables. A nodal routing table for a given node comprises alternate routes from the given node to other nodes in the ne... | 07/28/2009 |
| 7564793 | In-band call association signaling for a single number destination In one configuration, the present invention is directed to an enterprise network that includes geographically dislocated first and second network regions 202 and 206 communicating with one another through first and second networks 252 and 248... | 07/21/2009 |
| 7561525 | Wireless communication system, wireless communication apparatus, wireless communication method, and computer program A wireless communication system for performing multi-hop transmission between stations includes: a requesting station for requesting multi-hop transmission; a destination station which receives the request from the requesting station; and neighbor stations, wherein ... | 07/14/2009 |
| 7522529 | Method and system for detecting congestion and over subscription in a fibre channel network A method and system for detecting congestion and over-subscription in a fiber channel switch element is provided. A counter is updated if a frame cannot be transmitted due to lack of credit; then the counter value is compared to a threshold value; and an event is tr... | 04/21/2009 |
| 7505413 | Methods and systems to perform traffic engineering in a metric-routed network A system, to migrate a shortest-path-first (SPF) routed network from a first routing state to a second routing state, includes a changeover module to generate a sequence of intermediate network plans, each of which modifies a preceding network state according to a p... | 03/17/2009 |
| 7483379 | Passive network monitoring system A network monitoring system (10). The system comprises a database (32) and at least one monitoring circuit (36) coupled to a network (20). Network traffic flows along the network in a form of packets. The at least one monitoring circuit i... | 01/27/2009 |
| 7477606 | System and method for path failure recovery in a communications environment Provided are a system and method for recovering from failure of a path connecting first and second nodes in a communications network. In one example, the method includes identifying that the path has failed. Contexts affected by the path failure are deleted on the f... | 01/13/2009 |
| 7457249 | Alternate routing of media connections within a single communications system across public or private network facilities In one configuration, an enterprise network is provided that includes geographically dislocated first and second network regions 202 and 206, the first and second network regions being in communication with one another through first and second networks... | 11/25/2008 |
| 7453811 | Apparatus and methods for updating stale link state packets and routing table entries Disclosed are methods and apparatus for handling Link State Packets (LSPs) sent between processing nodes within a computer network. At a first node, an LSP sent by a second node is received. The received LSP specifies connectivity information regarding the second no... | 11/18/2008 |
| 7443790 | System and method for slot deflection routing at optical router/switch The present invention provides a system and method for slot deflection routing of optical data packets. The method of the present invention includes the steps of establishing a schedule pattern that includes a plurality of time slots. The schedule pattern includes a... | 10/28/2008 |
| 7441429 | SIP-based VoIP traffic behavior profiling With the widespread adoption of SIP-based VoIP, understanding the characteristics of SIP traffic behavior is critical to problem diagnosis and security protection of VoIP services. A general methodology is provided for profiling SIP-based VoIP traffic behavior at se... | 10/28/2008 |
| 7440761 | Communication relay method and device A wireless communication system including a wireless relay station storing a priority table in which identifiers of the communications that are relayed with higher priority are registered, a wireless relay device r... | 10/21/2008 |
| 7440441 | Method and system for Multimedia Messaging Service (MMS) rating and billing The advances disclosed herewith delimit an improved method and system for smoothly rating and billing Multimedia Messaging Service (MMS). Implemented as part of a computer program product, the solution seeking the protection of Letters Patent, represents a comprehen... | 10/21/2008 |
| 7440458 | System for determining network route quality using sequence numbers A system and method for determining route quality in a network in which multiple routes exist between a transmitting end-point and a receiving end-point. Initially, a routing sequence number is associated with each transmission sent on a route in the network, such t... | 10/21/2008 |
| 7436775 | Software configurable cluster-based router using stock personal computers as cluster nodes A cluster router architecture and methods for performing distributed routing is presented. Implementations include off-the shelf Personal Computer (PC) hardware. The cluster router architecture includes PC-based router cluster nodes toroidally interconnected in an i... | 10/14/2008 |
| 7433315 | Method for fast network re-optimization A fast and efficient method for network re-optimization is described. In one embodiment, the technique uses an algorithm that requires limited aggregate information to continually monitor the network for re-optimization opportunities. The re-optimization of the pres... | 10/07/2008 |
| 7433369 | Controlling network traffic In an ATM exchange, a cell transmission control section transmits an ATM cell to a transmission path of an ATM network. A traffic monitor monitors traffic of the cell transmissions. A statistical process section performs a temporal statistical process on the result ... | 10/07/2008 |
| 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 |
| 7397762 | System, device and method for scheduling information processing with load-balancing Packets are spread among a number of packet processors with load-balancing. The incoming packets are logically divided into a number of packet flows, where the number of packet flows is greater than the number of packet processors. Each packet flow is assigned to a ... | 07/08/2008 |
| 7395066 | Method, system and device for improving performance during cell change The invention discloses a communication system, method and devices for controlling transmission of packets to a user equipment during cell change. The communication system is configured so that data to be transmitted to the user equipment are first transmitted, e.g.... | 07/01/2008 |
| 7388840 | Methods and apparatuses for route management on a networking control plane An open networking routing system includes at least one forwarding element, and a control element communicatively coupled to the forwarding element(s). In one embodiment, the control element is equipped with a route cache manager to receive notification of a routing... | 06/17/2008 |
| 7379468 | Packet distributing apparatus and packet distributing method In a packet distributing apparatus and a packet distributing method which, in a situation in which a link can be allocated to a specific user or a specific traffic with priority, can effectively utilize any unoccupied link, a packet inputted via first through Nth th... | 05/27/2008 |
| 7379422 | Flow control enhancement A networking/communication chip having a receiving buffer or FIFO whereby it receives data from a data source across a network and transfers the data to a host system. The memory in the host system acts as a logical extension of the receiving buffer in the chip; in ... | 05/27/2008 |
| 7379425 | Address converter for gateways interconnecting networks of different address formats In a gateway, a packet received from a first network contains first address data conforming to the first network in the packet header and second address data conforming to a second network in an auxiliary header. The first address data of the packet is then rewritte... | 05/27/2008 |
| 7376086 | Constraint based routing with non-transitive exceptions In a multiple element network, a method and network element for providing a constraint based routing system to accommodate non-transitive exceptions. The method and network element receive a connection request for an end to end connection. The network element can se... | 05/20/2008 |