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| Number | Title | Issue Date |
| 8406243 | Fast LSP alert mechanism A method performed on a network element employing Multiprotocol Label Switching (MPLS) to promulgate an alert to each Label Switch Router (LSR) along a Label Switch Path (LSP) by forwarding a labeled packet serving as an alert packet generated by an LSR in the LSP, ... | 03/26/2013 |
| 8345700 | Embedding of MPLS labels in IP address fields MPLS labels may be inserted in IPv6 source or destination IP address fields, potentially reducing network overhead bandwidth. In one implementation, a network device may receive a packet; determine whether the packet is an ingress packet for a MPLS LSP; determine an... | 01/01/2013 |
| 8194689 | Method for bring-up of voice over internet protocol telephones A system and method for implementing telephony devices in a distributed network environment is disclosed. The present invention provides for voice transmissions to be given a dedicated virtual local area network (“VLAN”) for packet transmission and reception to ... | 06/05/2012 |
| 8155132 | Method for setting up a connection In methods for setting up communications between digital-subscriber-line terminal modems (13) and internet-service-providers (30) via digital-subscriber-line-access-multiplexers (2,20) and forwarders (3) of asynchronous-transfer-mode-netw... | 04/10/2012 |
| 8085799 | System, method and program for network routing Computer system, method and program for making routing decisions. A best routing path according to an OSPF, IGRP, EIGRP, BGP or other routing function that can provide multiple routing paths is determined. A first multiplicity of routers in the best routing path is ... | 12/27/2011 |
| 8036237 | System and method for transparent virtual routing A transparent routing device disposed within an access network configured in accordance with one or more lower-layer protocols is disclosed herein. The device includes a set of subscriber-side ports. Each of the subscriber-side ports is associated with a plurality o... | 10/11/2011 |
| 8014411 | Apparatus and methods for establishing virtual private networks in a broadband network Service providers can reduce multiple overlay networks by creating multiple logical service networks (LSNS) on the same physical or optical fiber network. The LSNs are established by the service provider and can be characterized by traffic type, bandwidth, delay, ho... | 09/06/2011 |
| 7983286 | Edge devices for providing a transparent LAN segment service and configuration such edge devices A transport LAN segment service is provided over a transport network. The transport network will include edge devices configured to support one or more transparent LAN segments. Configuration is simplified by advertising TLS-port-label information, layer 2 address l... | 07/19/2011 |
| 7969998 | Method and system for tunneling data using a management protocol A method and system for providing network management communication between a plurality of network elements are disclosed. A method includes creating a tunnel configured for transmitting data between the network elements and transmitting network management informatio... | 06/28/2011 |
| 7957408 | Routing protocol support for half duplex virtual routing and forwarding instance A method, apparatus and computer program product for providing dynamic routing support for Half-Duplex Virtual Routing and Forwarding (HDVRF) environments. The method, apparatus and computer program function to configure a forwarding Virtual Routing and Forwarding (... | 06/07/2011 |
| 7869451 | Method for operating a local computer network connected to a remote private network by an IPsec tunnel, software module and IPsec gateway The invention relates to a method in particular enabling the computer terminal (T_L) of a local network (RES_L), connected to a gateway (PASS_D) of a remote network (RES_D) by an IPsec tunnel in blocking mode, to launch a print job on a printer (E_L) belonging to th... | 01/11/2011 |
| 7869450 | Method and apparatus for processing labeled flows in a communication access network A system and method is provided for managing access communications between the service edge of a communications service provider and a customer. Access communications are carried in the form of carrier-tagged flows, the communications traffic being appended with car... | 01/11/2011 |
| 7773618 | System and method for preventing deadlock in richly-connected multi-processor computer system using dynamic assignment of virtual channels Systems and methods for preventing deadlock in richly-connected multiprocessor computer system using dynamic assignment of virtual channels. Deadlock is prevented in a multiprocessor computer system having a large plurality of processing nodes interconnected by a de... | 08/10/2010 |
| 7773617 | System and method for arbitration for virtual channels to prevent livelock in a richly-connected multi-processor computer system Systems and methods for arbitrating for virtual channels to prevent livelock in richly-connected multiprocessor computer system. Livelock is prevented in a multiprocessor computer system, in which each of a large plurality processing node has input links and egress ... | 08/10/2010 |
| 7773616 | System and method for communicating on a richly connected multi-processor computer system using a pool of buffers for dynamic association with a virtual channel Systems and methods for communicating on a richly-connected multiprocessor computer system using a pool of buffers for dynamic association with a virtual channel. Packets are communicated in a multiprocessor computer system having a large plurality of processing nod... | 08/10/2010 |
| 7764702 | Method and apparatus for customer-controlled routing management In one embodiment, the present invention is a method and apparatus for customer-controlled routing management. In one embodiment, a system for managing routing in a virtual private network includes a configuration management system for receiving settings from a user... | 07/27/2010 |
| 7729367 | Method for bring-up of voice over internet protocol telephones A system and method for implementing telephony devices in a distributed network environment is disclosed. The present invention provides for voice transmissions to be given a dedicated virtual local area network (“VLAN”) for packet transmission and reception to ... | 06/01/2010 |
| 7623535 | Routing protocol support for half duplex virtual routing and forwarding instance A method, apparatus and computer program product for providing dynamic routing support for Half-Duplex Virtual Routing and Forwarding (HDVRF) environments. The method, apparatus and computer program function to configure a forwarding Virtual Routing and Forwarding (... | 11/24/2009 |
| 7590131 | Transport network restoration method Transmission signals in a transport network are multiplexed from traffic streams respectively representing paths. Each path is identified with a path tag and forwarding information is provided in each network element. Failed paths in the network are restored in that... | 09/15/2009 |
| 7529257 | Method for supporting a GMPLS hierarchy through multiple routing instances A method for supporting a GMPLS hierarchy through multiple routing instances in a network having multiple regions is disclosed. Each region has associated therewith a separate routing instance. The method includes initiating creating a link between two regions at an... | 05/05/2009 |
| 7489700 | Virtual access router Access routers making up a LAC device or LNS device are given virtual router functions. The virtual routers are associated with either physical interfaces or fixed logical interfaces, L2TP tunnels, or PPP sessions. This allows one LAC device or LNS device to ... | 02/10/2009 |
| 7483440 | Ring LSP topology for supporting VPNs over MPLS-based networks A communications system for transmitting packets includes a network. The system includes a plurality of P, PE and CE devices in communication with the network. The system includes a controller which creates an LSP through the PE devices defining a path such that the... | 01/27/2009 |
| 7463639 | Edge devices for providing a transparent LAN segment service and configuring such edge devices A transport LAN segment service is provided over a transport network. The transport network will include edge devices configured to support one or more transparent LAN segments. Configuration is simplified by advertising TLS-port-label information, layer 2 address l... | 12/09/2008 |
| 7450598 | System and method to provision MPLS/VPN network The disclosed method and system provides a new service provision interface that allows operator use without requiring many of the specific technical network details, such as VRF, RT, SOO, route redistribution, etc. Further, the translation from a customer's requirem... | 11/11/2008 |
| 7444443 | Method of repeating data transmission between network devices by timing a first predetermined period after previous first data transmission A method is provided for transmitting data from a transmitting device (121) to a receiving device (125). The transmitting device transmits a first data frame (200) to a receiving device a first time (3100). Then it consecutivel... | 10/28/2008 |
| 7440452 | Automated operation and security system for virtual private networks A node device for providing secure communication services over a data network, such as the Internet or another public or private packet switched network, to multiple computers that are coupled through the node device and multiple other node devices. The node device ... | 10/21/2008 |
| 7424025 | Methods and systems for per-session dynamic management of media gateway resources Methods and systems for per-session dynamic management of media gateway resources are disclosed. According to one method, the logical and physical resources in a media gateway are divided and dynamically managed at the Transport Layer (i.e. OBI Layer 4), whic... | 09/09/2008 |
| 7424005 | Layer 2 link handler and path connection method thereof To make an efficient network operation possible in which a user-side device connected by a permanent virtual connection path is selectively connected to one among multiple specified connection destinations, and multiple layer 2 links are multiplexed to one pa... | 09/09/2008 |
| 7411904 | Multiprotocol label switching (MPLS) edge service extraction A technique for managing network traffic is disclosed. According to the technique, a set of VLAN IDs is explicitly identified for use with a first service. The rest of the customer traffic is considered as part of a default service. Traffic that is received at a PE ... | 08/12/2008 |
| 7391778 | Label switching router having internal channel share function over ATM, and method for sharing internal channel using the same A label switching router having an internal channel share function over an asynchronous transfer mode that sets up an internal channel in advance of the external channel and shares it when an external channel needs to be set up, and a method for sharing an internal ... | 06/24/2008 |
| 7382785 | Extended virtual user-to-network interface with ATM network An SVC is established via an ATM switch port, which includes multiple virtual paths (VPs), by associating multiple virtual user-to-network interfaces (UNIs) to each of the VPs. Each of the VPs includes multiple virtual circuit (VC) ranges, each of which corresponds ... | 06/03/2008 |
| 7379465 | Tunneling scheme optimized for use in virtual private networks A tunneling scheme includes the creation of tunnels having a source address and potentially multiple destination addresses. Each tunnel endpoint is divided into two sub-endpoints, where one sub-endpoint has a public network address and the other sub-endpoint has a p... | 05/27/2008 |
| 7372868 | Mobile agent connectivity Mobile agent connectivity includes dynamically determining addressing information for a mobile device at a mechanism configured to provide the mobile device with access to a network. ... | 05/13/2008 |
| 7372819 | Adaptive packet routing A method of determining the latency of a route in a packet-switched network, a packet switch for use in such a method and network and a packet-switched network are disclosed. Preferably, each switch maintains a routing table that records the latency of the routes ac... | 05/13/2008 |
| 7372811 | Load balancing model for multilink frame relay A system and method for load balancing transmissions across a multilink frame relay connection is disclosed. A credit value is assigned to each bundle link in the multilink based on the amount of data transmitted over a set period of time. Frames or frame fragments ... | 05/13/2008 |
| 7369547 | Group restart for scalable switched ATM networks The present invention relates to group restart in switched ATM networks. In accordance a method of one embodiment of the present invention, a first network switch receives a message (e.g., a call setup message) at one of a plurality of interfaces to the first networ... | 05/06/2008 |
| 7366181 | Virtual private network (VPN) with channelized ethernet over sonet (EoS) interface and method A VPN includes a shared label switching network, a plurality of VLANs and edge routers interfacing the VLANs with the shared label switching network. The VLANs are each coupled to an edge router and communicate traffic using channelized EoS. ... | 04/29/2008 |
| 7366187 | Linking autonomous systems with dual premise routing domains The present invention is directed to a system for linking a first autonomous network system to at least one second autonomous network system. The first autonomous network system having a first private IP address space and the at least one second autonomous network s... | 04/29/2008 |
| 7366813 | Event queue in a logical partition An information processing system is provided which includes a plurality of system resources, and an event queue having a predetermined number of entries. An event recording mechanism of the information processing system is operable to make entries regarding events i... | 04/29/2008 |
| 7366188 | Gateway for supporting communications between network devices of different private networks A gateway supports communications between network devices connected to different private networks. When a tunnel setup request message is received from a host connected to a first private network to setup a tunnel to a second private network connected to a public ne... | 04/29/2008 |
