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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...
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7623520 |
Method and apparatus for routing packets
A method used for routing a data packet in a router having a first table used for recording a plurality of destination IP address and second table used for recording destination MAC address,...
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7616637 |
Label switching in fibre channel networks
Methods and apparatus are provided for label switched routing in fibre channel networks. Techniques are provided for implementing label switching based on particular characteristics of fibre...
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7616628 |
Switched processor datapath
Data-processing systems including processor datapaths that efficiently support computationally advantageous routing operations are disclosed. Data-processing methods based on such systems are also...
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7609701 |
Communication using private IP addresses of local networks
A system, apparatus and method to use private IP addresses to designate host devices or nodes in different networks for communication purposes are described. Various embodiments of the invention...
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7606232 |
Dynamic virtual local area network (VLAN) interface configuration
Techniques are described for dynamically building an Ethernet virtual local area network (VLAN) interface in a network device. The techniques allow dynamic building of a second VLAN interface over...
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7599286 |
System and method for achieving path symmetry in an internet protocol (IP) based network
A system and method for improving network performance when communicating between a first site network and a second site network via an IP-based transport network. The site networks include a LAN, a...
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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...
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7590128 |
Method and system for setting up a media session in a telecommunications network
A communication system sets a media session between a first media gateway and a second gateway through a media gateway controller. The first media gateway receives a control address of the second...
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7580415 |
Aggregation of hybrid network resources operable to support both offloaded and non-offloaded connections
A computer system has an aggregated plurality of hybrid network resources. The hybrid resources support both offloaded connections with a first set of clients and conventional connections with a...
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7574496 |
Virtual server cloud interfacing
A server cloud manager (SCM) for controlling logical servers and physical resources that form a virtualized logical server cloud. The SCM includes multiple core components and one or more interface...
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7574495 |
System and method for managing interworking communications protocols
A computerized method for managing interworking protocols applies policies that aid in provisioning a first interface, having a first protocol, a transport network having a second protocol, a...
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7573813 |
Method for configuring and routing data within a wireless multihop network and a wireless network for implementing the same
A method routes packets in a wireless network which includes a control node and a multiplicity of individual nodes. The method includes: inserting a routing logical address into each packet which...
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7567569 |
Method for recursive BGP route updates in MPLS networks
A method for providing BGP route updates in an MPLS network is disclosed. The route update is performed at a router having a forwarding information table containing BGP routes and an internal...
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7561580 |
Provisioning a multi-protocol label switching interface between networks
A method and system for enabling packet based communications using MPLS protocol between routing devices located on different networks. A network management system is used to provide a conduit for...
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7558481 |
Method for optimizing enhanced DWDM networks
An enhanced Dense Wave Division Multiplexing (DWDM) network is optimized through bundling subchannel traffic in DWDM channels at network nodes and “hubbing” the DWDM channels at nodes receiving...
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7555001 |
On-chip packet-switched communication system
A system for routing a data packet between N elements includes N network interfaces respectively connected to the N elements, with N being an even integer, and an on-chip packet-switched...
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7548964 |
Performance counters for virtualized network interfaces of communications networks
Performance counters are provided for virtualized network interfaces of communications networks, while minimizing the use of hardware resources. A virtualized network interface includes physical...
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7545807 |
Method for formatting signal in mobile communication system
A method for formatting a signal in a mobile communication system by appending a plurality of medium access control headers to a plurality of medium access control-service data units for data...
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7545798 |
Communication system for controlling a call portion
To provide a communication apparatus which is used in a VoIP telephone system and which can make connections with the minimum partners even in case an access cannot be made to a server managing a...
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7539159 |
Maintaining reachability of a mobile node
A system for selectively updating an address of a mobile node capable of roaming in a home communication network and at least one visited network. The system including a database for storing at...
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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...
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7532631 |
Method and apparatus for accelerating border gateway protocol convergence
A method and apparatus are disclosed for accelerating Border Gateway Protocol (BGP) route convergence in an autonomous system. A virtual link identifier is assigned to each link of a set of...
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7532620 |
Routing table synchronization method, network apparatus, and routing table synchronization program
In a network apparatus including a forwarding unit corresponding to a base point for conducting packet transmission/reception with an external network, and plural control units for operating plural...
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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...
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7522524 |
Employing one or more multiport systems to facilitate servicing of asynchronous communications events
One or more multiport systems are used to facilitate servicing of asynchronous communications events. A multiport system, such as an open collector multiport system, receives from one of a...
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7518996 |
Fast credit system
The invention provides an improved architecture for credit based flow control. Briefly, the memory space within the receiving switch is separated into two parts, a statically allocated portion and...
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7512741 |
Two-hop source snoop based messaging protocol
A messaging protocol that facilitates a distributed cache coherency conflict resolution in a multi-node system that resolves conflicts at a home node. The protocol may perform a method including...
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7508774 |
Extensions to the spanning tree protocol
Extending the Spanning Tree Protocol (STP) to provide redundancy and avoid loops in the topology of a service domain associated with a data transport service provided using a provider core network...
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7505459 |
Method and apparatus for switching packets in a passive optical network
One embodiment of the present invention provides a system that performs packets switching in a passive optical network which includes a central node and at least one remote node. After receiving a...
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7502315 |
Method for hybrid network planning
A method of determining a path through a network. Structures in a network are grouped into structure groups, each structure group comprising at least two nodes. Virtual circuit information for...
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7500196 |
Method and system for generating route distinguishers and targets for a virtual private network
A method for generating a route distinguisher for a virtual private network, the virtual private network managed by a service provider through a network management system, the method comprising:...
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7492766 |
Dynamic building of VLAN interfaces based on subscriber information strings
Techniques are described that allow a network device, such as a router, to dynamically build VLAN interfaces based on subscriber information strings included within packets. In particular, the...
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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, L 2 TP...
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7489693 |
Method and apparatus for automatically detecting virtual circuit settings and encapsulation types in a DSL network
Automatic detection of the virtual circuit setting and encapsulation type of a DSL line. A DSL modem determines the correct virtual path identifier (VPI) and virtual channel identifier (VCI) by...
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7489692 |
Method and system for ATM virtual circuit numbering
A system and method for providing identifying numbers for virtual circuits and virtual paths in a network is described. The system and method make use of a predetermined group of identifying...
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7489681 |
Method and apparatus for virtual circuit routes
A method and apparatus for virtual circuit routes is described. A method in a network element comprises associating a virtual circuit to a layer 3 next hop, the virtual circuit being associated...
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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...
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7475166 |
Method and system for fully trusted adapter validation of addresses referenced in a virtual host transfer request
A method, computer program product, and distributed data processing system that allows a single physical I/O adapter, such as a PCI, PCI-X, or PCI-E adapter, to validate that a direct memory access...
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7474673 |
Recording and using transcoding information
A system for providing telecommunication service between users, includes a first network, a second network, a gateway. The first network is capable of communicating media in at least one encoding...
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7474660 |
MAC address extension to maintain router information in source routed computer networks
The invention solves the problem of maintaining Route information Field (RIF) information in a router for populating the RIF field of packets routed by the router, by storing the RIF information...
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7468978 |
Apparatus and method for forwarding encapsulated data packets on a network having multiple links between nodes
An apparatus and method for encapsulating and forwarding packets on a network are disclosed. The network can include a first subnetwork such as a virtual private network connected to a larger...
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7466681 |
Method and apparatus for sensor network routing
Sensor network routing uses distance information of sensors relative to a collector node, optionally along with non-unique key information, to route broadcasts from addressless sensors to a...
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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...
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7463633 |
Packet switching system, packet switching network and packet switching method
Upon initialization, a VPC is set up between edge nodes. A control processor of each node creates an IP address/VPC mapping table using IP routing information and an address mapping table mapping...
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7457255 |
Method and apparatus for providing link-local IPv4 addressing across multiple interfaces of a network node
A system to provide link-local IPv4 addressing across multiple interfaces of a network-node. The network-node broadcasts an Address Resolution Protocol (ARP) request packet on multiple interfaces...
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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...
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7447186 |
Methods and apparatus for implementing mobile IPv6 route optimization enhancements
Methods and apparatus for establishing an optimized route between a Mobile Node and a Correspondent Node are disclosed. In particular, a Correspondent Node is notified of the location of a Mobile...
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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...
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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...
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