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7620398 |
Method and apparatus for simultaneously communicating on a voice channel and broadcast channel
A method and apparatus is provided for simultaneously accessing a broadcast channel which allows for maintaining registration on the broadcast channel and a second channel. The broadcast channel...
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7613392 |
1:N protection in an optical terminal
A communication network comprising at least one first terminal, at least one second terminal, a plurality of links, and at least first and second nodes. The first node is bidirectionally coupled to...
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7609624 |
Method and apparatus for pre-provisioning networks to support fast restoration with minimum overbuild
Improved network design techniques are provided. For example, a technique for designing a protection capacity to be reserved in a network comprises the following steps/operations. One or more link...
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7609623 |
Method and system for automatically rerouting data from an overbalanced logical circuit in a data network
A method and system are provided for automatically rerouting data from an overbalanced logical circuit in a data network. Status information is received for a logical circuit communicating data in...
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7609622 |
Communication system having enhanced reliability
A method for a system including a plurality of encoders each for receiving a first signal and encoding to generate a respective second signal for sending to a respective subscriber, comprising...
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7609621 |
Automatic protection network switching
A method of protecting a protected link is disclosed. The method includes connecting traffic from a service module to a first physical module having a link layer framer that is connected to a...
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7606145 |
Dual-mode broadband modem
A dual-mode broadband modem operative to operate in a service mode and a surveillance mode is disclosed. Generally, the dual-mode broadband modem comprises a primary communication device; a...
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7606142 |
Method and system for shared backup allocation in networks based on partial information
A method comprises allocating a respective restoration path to protect each of a plurality of primary paths in a network. Each primary path has a plurality of nodes and at least two subpaths...
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7593324 |
Graceful port shutdown protocol for fibre channel interfaces
A port shutdown protocol coordinates among various components involved in the process of administratively bringing down a link at both ends of a link connecting two switches. Execution of the...
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7593321 |
Method and system for a local and fast non-disruptive path switching in high speed packet switching networks
A method for operating a node in a computer network is disclosed, where the network is made up of nodes connected by links. The method has the steps: determining an alternate path for one or more...
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7593319 |
LAN switch with rapid fault recovery
One embodiment disclosed relates to a method of fault recovery by a switch in a local area network. A link failure is detected at a port of the switch. In response to the link failure detection, a...
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7590756 |
Method and system for transferring data in a communications network using redundant communication paths
A communication node of the present invention automatically transmits original and duplicate packets over different paths in a communications network to improve delivery reliability of the packet...
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7590055 |
High availability broadband connections through switching from wireline to diverse wireless network
A broadband access connection carried over a wireline link is backed-up by a wireless connection to create a high availability communication channel. This protection system comprises a wireline...
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7583703 |
System and method for power injection and out of band communications on shared medium
In one embodiment, in a power injection and out of band communications on a shared medium system, the system is configured to receive a power signal. Concurrently, the system is configured to...
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7581024 |
Method and system for increasing participation in a standby router protocol
A method and system is provided for increasing participation in a standby router protocol (SRP) without increasing the amount of network traffic due to SRP messaging. One or more domain master...
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7577108 |
Learning-based strategies for message-initiated constraint-based routing
A method is presented for a learning-based strategy utilized within message-initiated constraint-based routing for digital message communication among nodes in an ad-hoc network, in which each node...
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7577107 |
Protocol specification for message-initiated constraint-based routing
A method is presented for message-initiated constraint-based routing for digital message communication among nodes in an ad-hoc network, in which each node includes attributes having attribute...
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7567519 |
Remote testing and monitoring to a cell site in a cellular communications network
Systems and methods provide remote performance monitoring and testing to a cell site in a cellular communications network. The systems and methods include a network management center having remote...
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7564780 |
Time constrained failure recovery in communication networks
A network includes multiple nodes interconnected to form a mesh topology. These nodes support working paths for the transmission of data and protection paths to provide for recovery in the event of...
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7562253 |
Segmented protection system and method
A segmented protection system and method. The invention comprises a plurality of Processing Modules arranged in series along a Protection Bus. A number of Protection Groups may be formed along the...
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7561534 |
Methods of network routing having improved resistance to faults affecting groups of links subject to common risks
A number of techniques are described for routing methods that improve resistance to faults affecting groups of links subject to common risks. One of these techniques accounts for failure potentials...
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7561512 |
Method and system for enhancing crankback handling in multi-peer group networks
A method for enhanced crankback handling in a multi-peer group network. The method includes receiving a first connection request from a node of a first peer group. Upon detection of a call failure...
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7551553 |
Method and apparatus for restoring a network
A method and apparatus for restoring communications in a network. The network includes a plurality of nodes, with each pair of nodes connected by a link, and with each link having information...
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7551551 |
Fast reroute (FRR) protection at the edge of a RFC 2547 network
A fast reroute (FRR) technique that may be deployed at the edge of a network having first and second edge devices coupled to a neighboring routing domain. If the first edge device detects a node or...
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7542414 |
Computing a diverse path while providing optimal usage of line protected links
Methods and apparatus for enabling line-protected links to be included in path-protected segments of a unidirectional path-switched ring are disclosed. According to one aspect of the present...
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7542412 |
Self-routing, star-coupler-based communication network
A self-routing communication network ( 100 ) having: a plurality of nodes (N 1 -N 15 ); a plurality of star couplers (S 1 -S 4 ) each having a plurality of inputs and a plurality of outputs; and...
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7535831 |
Method and apparatus for providing grades of service for unprotected traffic in an optical network
A method for providing grades of service to unprotected traffic on an optical network that provides protection channels associated with working channels, defines a linearly ordered set of...
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7535830 |
Dynamic cable assignment on gigabit infrastructure
A method and corresponding network interface device for communicating between devices connected to a LAN includes attempting to communicate between the network devices over an initial subset of the...
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7529183 |
Method of setting up a backup path in a transport network
Paths in a transport network are identified by labels (n 1 -n 4 , b 1 -b 4 ) and more than one restoration resources that can be used for setting up a particular backup path form a restoration...
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7529182 |
Communication device with 1:1 protection
A communication method for a network where a plurality of communication devices are interconnected and a plurality of pairs of working channels and backup channels are set in two paths between...
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7526568 |
Integrated live video production system
Described is a system used in defining and producing a live television broadcast. The system includes one or more control panels, a workstation, a router, and devices. The control panels may be...
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7525907 |
Method, device and software for establishing protection paths on demand and revertive protection switching in a communications network
In a method of providing protection switching in a meshed communications network, a protection path between two nodes on the network is only established, on demand, as it is required, after a fault...
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7519079 |
Generic routing encapsulation over point-to-point protocol
A system and method are described herein that are capable of reducing overhead while keeping the traffic separation characteristics between two routers by establishing and using a generic routing...
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7519056 |
Managing traffic in a multiport network node using logical ports
A technique for implementing VLANs across a service provider network involves establishing logical ports that have bindings to transport tunnels. The logical ports are then treated the same as...
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7518982 |
System and method of communicating status and protection information between cards in a communications system
Described are a system and method of communicating status and protection information between cards in a communications system. The system has a plurality of cards connected to a backplane. The...
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7515531 |
Apparatus and methods for the communication and fault management of data in a multipath data network
An apparatus and methods are provided for the communication of a data stream and management of faults in a multipath data network having a protected ring-in-ring network architecture. The data...
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7508755 |
Methods and devices for creating an alternate path for a bi-directional LSP
Upon the detection of a failure along a bi-directional label switched path, traffic in both forward and backward directions is re-routed to the same alternate path.
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7508754 |
Method and system to support internal calling upon loss of connection with IP Centrex server
A method and system for facilitating calling within an enterprise network upon failure of a landline connection between the enterprise network and an outside call server such as an IP Centrex...
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7506018 |
Methods and apparatus for determining one or more access points in a communication system
Embodiments of the present invention provide a system, method, apparatus, means, and computer program code for designing a communication system. According to embodiments of the present invention,...
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7505819 |
Redundant fieldbus system
A redundant fieldbus redundant system includes two independent conditioned power modules which automatically detect cable faults, such as short or open circuits on both the host and field sides of...
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7505404 |
Maintaining communication sessions
Communication occurs between a server and a terminal. The terminal establishes a first communication path with the server via a first allocated address. The server allocates an identification...
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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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7490165 |
Method and apparatus for computing a path in a system with nodal and link diverse constraints
Methods and apparatus for defining an alternate circuit path within a network are described. According to one aspect of the present invention, a device for computing circuit paths between a first...
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7489627 |
Telecommunication network and upgrading method therefore
For upgrading a section of a telecommunication network comprising two nodes, one of the data lines interconnecting the nodes is selected to be a carrier of redundant specimens of information units...
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7486616 |
Preemptive dynamic frequency selection
Briefly, in accordance with one embodiment of the invention, an access point may preemptively broadcast an alternate channel to switch to, along with an indication of the beacon timing for the...
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7474625 |
Time-triggered communication system and method for the synchronized start of a dual-channel network
A dual-channel network with in each case one communication controller ( 2, 6 ) for each of the two channels (A, B). In order to ensure that the two channels (A, B) operate on a temporally matched...
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7471623 |
Systems and methods for a unified computer system fabric
Disclosed are systems and methods providing a unified system fabric in a computer. The systems and methods of embodiments including first interface disposed between a first component of the...
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7463655 |
Method of transmitting data with redundant structure, and device for transmitting data by said method
The present invention provides a data transmission method in which a SONET is applied to Ethernet LANs. This method realizes a redundant structure of the Ethernet while utilizing the bandwidth of...
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7463581 |
Re-routing connections using redundant path connections and loopbacks
A method and apparatus are described for re-routing user connections between first and second nodes in a network switch. A loop-back path provides connectivity between the first and second nodes....
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7460783 |
Method and apparatus for dynamic provisioning of reliable connections in the presence of multiple failures
Method and apparatus for dynamic provisioning of reliable connections in the presence of multiple failures in optical networks are described. One embodiment is a method for allocation of protection...
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