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7619967 |
Method for protection of ethernet traffic in optical ring networks
A method for protecting Ethernet data packets transmitted over SDH/SONET traffic in a ring-like optical network formed by a number of nodes, the method includes utilizing MS-SPRING/BLSR system for...
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7616558 |
Reduction of the transport capacity of a virtual concatenation group
The transport capacity of a Virtual Concatenation Group (VCG) can be reduced under control of a Link Capacity Adjustment Scheme (LCAS). The VCG comprises link members, in which payload data are...
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7613108 |
Redundant supervisory control system, and redundancy switching method of the same
An object is to provide a redundant supervisory control system and a redundancy switching method thereof. In the redundant supervisory control system, remote I/O apparatuses are less likely to be...
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7613106 |
Dial plan transparency for fragmented networks
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...
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7610405 |
Router software upgrade employing redundant processors
Systems and methods for replacing software controlling active routers while minimizing impact on network operation are provided by virtue of one embodiment of the present invention. The software...
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7602702 |
Fast reroute of traffic associated with a point to multi-point network tunnel
Techniques are described for fast reroute of traffic associated with a point to multi-point (P2MP) tunnel. A system may, for example, include a source network device and a plurality of destination...
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7599285 |
Combined electro-mechanical and solid state switching fabric
According to the present invention, methods and apparatus are provided to allow efficient switching of cable lines from failed line cards to protect line cards. Line cards may be arranged in...
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7590052 |
System and method for providing telecommunications service using a wireless link
A system and method for providing telecommunications service to users in a service area using a wireless link. An office-side connection system is provided for connecting a local distribution...
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7590049 |
System and method for configuring a network element to support protection switching in an optical network
A system and method for configuring a network element to support protection switching in an optical network are described. The network element can operate according to the SONET, SDH, or both...
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7586841 |
System and method for protecting against failure of a TE-LSP tail-end node
A technique protects against failure of a tail-end node of a Traffic Engineering (TE) Label Switched Path (LSP) in a computer network. According to the protection technique, a node along the TE-LSP...
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7583590 |
Router and method for protocol process migration
A router and a method for migrating routing protocol processes or Virtual Routers (VRs) from one Route Processor (RP) to another using graceful restart procedures for maintaining packet flow to the...
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7580348 |
Communication apparatus, control method, and computer readable information recording medium
In order to rapidly restoration at a time of fault occurrence without lowering usage efficiency of circuit resources, in a configuration in which a plurality of physical circuits are grouped and...
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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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7573811 |
Network transparent OSPF-TE failover
A method and apparatus for providing link state routing protocol redundancy in a router. A router includes an active controller and at least one standby controller. An internal adjacency...
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7564778 |
Method of and control node for detecting failure
A method of detecting a failure in a network, which includes a transport plane comprised of a plurality of communication nodes performing optical cross-connect and a control plane comprised of a...
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7561795 |
Dynamic interlayer protection in optical telecommunication networks
The present invention relates to a method for protecting an optical telecommunication network against possible failures and signal degrades, the network comprising at least two nodes; working...
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7558194 |
Virtual private network fault tolerance
Loss of connectivity on a mesh or virtual service (e.g., VPLS) may be restored by “stitching” a healing path between an affected node and another node on the mesh. Connectivity may be restored...
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7554904 |
System and method for service independent data routing
Data are rerouted over a network having a uniform-capacity Tandem Connection by detecting a failure in a link in a path, maintaining the path through a Tandem Connection that does not include the...
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7551552 |
Method for providing guaranteed distributed failure notification
A guaranteed distributed failure notification method is described, wherein a failure notification (FN) facility allows applications using the facility to create FN groups to which the application...
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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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7539494 |
Inter-site call routing and roaming support
A method ( 600,700 ) and apparatus ( 800 ) are arranged and operate for facilitating call routing between sites in an enterprise connected by a private IP network ( 130 ). A range of identifiers (...
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7539127 |
System and method for recovering from endpoint failure in a communication session
A method for recovering a communication session after failure of an endpoint includes establishing a communication session between a first endpoint and a second endpoint, receiving keep alive...
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7535827 |
High availability of resources in telecommunications network using synchronized redundancy mechanism
Redundancy mechanisms are difficult to implement in a node holding connections spanning over a wide telecommunications network. Novel redundancy mechanisms to be implemented on a telecommunications...
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7532583 |
Method for integrating downstream performance and resource usage statistics into load balancing weights
In datacenter environments, many copies of servicing components (application servers, http servers, etc) are used to handle larger loads. In these cases, incoming service requests typically go to a...
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7532569 |
Reflector communications channel for automatic protection switching
An apparatus and method for a communications network including at least one interface circuit reads frame data received from the communications network and writes frame data to be transmitted over...
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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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7525906 |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Disaster recovery for active-standby data center using route health and BGP
The present invention provides an active/standby data center that avoids the delay associated with a cached DNS entry to switch from the active data center to the standby data center. When the...
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7525905 |
Method for the protection of the connection between a transport network hub and a central site/pop
The present invention provides for a method for Enhanced Equipment Protection Switch for Customer's device Dual-Homing, in an interconnection between a Central site/Pop and a Transport Network Hub...
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7525904 |
Redundant packet routing and switching device and method
A router and method therefore for routing and switching a packet from an incoming link to an outgoing link. The router may include a plurality of network processing units, a plurality of switching...
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7522517 |
Communication system with multipoint circuit bonding
A communication system comprises: a first circuit bonding device, a second circuit bonding device, a third circuit bonding device, first bonded circuits coupling the first circuit bonding system...
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7519698 |
Method and system for extracting information from networked devices in a multi-protocol remote monitoring system
A method, system, and computer program product for storing information configured to be used for a plurality of communication protocols to extract status information related to a monitored device...
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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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7518987 |
Mechanisms for providing connectivity in NAT redundant/fail-over scenarios in unshared address-space
Disclosed are methods and apparatus for facilitating reliable session based communication with a local host via a subnet of redundant network devices that also implement network address translation...
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7518985 |
Communication apparatus and communication system
Interlayer-coordinated communication-line switching in a network including two layers, each having a switching function. In the present invention, a communication apparatus which (1) is connected...
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7515529 |
Efficient mechanism for fast recovery in case of border router node failure in a computer network
A technique protects traffic (IP) against the failure of a border router between two domains in a computer network using Fast Reroute and backup tunnels. The border router (i.e., the “protected...
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7505402 |
Method and apparatus for providing faster convergence for redundant sites
A method, apparatus and computer program product for providing convergence for a dual-homed site in a network is presented. An occurrence of a failure between a first Provider Edge (PE) device and...
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7492706 |
Frame synchronization and fault protection for a telecommunications device
According to one embodiment, a telecommunications device includes a bus. A first controller coupled to the bus is operable to generate first pulses for communication using the bus. A second...
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7492704 |
Protocol definition for software bridge failover
A method, data processing system, and computer usable code are provided for protocol definition for software bridge failover. In a first aspect of the present invention, a first software bridge...
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7486612 |
Fault-tolerant multicasting network
A multicasting network includes a number of routers that are connected together to form a ring. The routers include a source router that identifies incoming multicasting data packets, and forwards...
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7477593 |
Loop prevention techniques using encapsulation manipulation of IP/MPLS field
A fast reroute (FRR) technique is implemented at the edge of a computer network. In accordance with the technique, if an edge device detects a node or link failure that prevents it from...
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7474612 |
Multi-function bypass port and port bypass circuit
An architecture is provided for implementing bypass, repeater and retimer functions in high-speed multi-port SERDES bypass ports and devices. Specifically, this architecture uses clock recovery to...
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7472210 |
Multiplexing and bypass circuit for interfacing either single or dual ported drives to multiple storage processors
Single and dual ported devices are interfaced to a system via a 2:2 multiplexing device. The multiplexing device is coupled to two system ports and two device ports. The multiplexing device...
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7469361 |
Monitoring detection and removal of malfunctioning devices from an arbitrated loop
The detection, removal and reinsertion of possibly malfunctioning devices from an arbitrated loop is disclosed. When a new device is first connected to a storage switch and a loop is formed and...
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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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7460471 |
System for motion control, method of using the system for motion control, and computer readable instructions for use with the system for motion control
A motion control system and method that includes a central controller configured to generate first and second demand control signals to be used to define actuation motion of respective first and...
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7457233 |
Method and apparatus for fast reroute in a connection-oriented network
A method and an apparatus for rapidly resuming, at times of failures, network traffic in a connection-oriented network by using an alternative route pre-computed and stored locally in nodes along...
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7450496 |
Method for selecting restoration path in a mesh network
A method of selecting a restoration path in a mesh telecommunication network is disclosed that advantageously is practical and flexible and may be pre-computed along with a service connection path...
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7447146 |
Method and apparatus for supporting multiple independent failure domains
A method of error protection. In one embodiment, the method of error protection consists of detecting an error during communication between nodes in a network. The nodes are separated by a link in...
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7443788 |
Method and apparatus for improving performance of a loop network
A method and apparatus for improving performance of a loop network, in particular a Fiber Channel Arbitrated Loop. The loop network has two loops and a plurality of dual-ported devices each with...
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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...
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