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7623446 MPLS virtual rings  
A virtual ring representing a community of interest is constructed from an interconnected mesh of nodes in a packet network. The virtual ring instantiates ring labels in respective forwarding...
7623445 Multiple ring support within a single network element  
A network element receives frames from multiple ring networks. Each ring network linked to the network element is supported by a designated support program. The received frames are monitored for...
7616559 Multi-link network architecture, including security, in seamless roaming communications systems and methods  
A communications system provides for secure communications of information over multiple communications links. The system includes a client device, a server device, and at least one, and typically...
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...
7586843 Communication network having wireless access to a service center  
A communication network has an open-ended communication loop coupled to a communication ring at separate points on the ring. The communication network has wireless access points that are coupled to...
7573814 Method and apparatus for protection of an optical network  
A method and apparatus for mesh based protection of an optical network is described. A method comprises protecting a first set of one or more optical sub-channels with automatic protection...
7564779 Ring rapid spanning tree protocol  
In a method for enabling facilitation of re-convergence, designation information for a first port of each one of a plurality of bridges in a multi-bridge ring is received and designation...
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...
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 (...
7522532 Layer 2/layer 3 interworking via physical loopback  
A layer three enabled layer two network includes a multi service platform. The platform includes a layer two switching component and a layer three switching component and has a physical loopback...
7519293 Optical communication system having ring-based restoration using shared protect links  
In an optical communication system, optical communications are transferred over a first ring and a second ring. A fault is detected on the first ring or the second ring. If the fault is detected on...
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...
7486614 Implementation method on multi-service flow over RPR and apparatus therefor  
A data transmission apparatus for implementing multiple service flow in a multiple service ring is described. The apparatus includes a trunk pipe and at least two nodes each with at least one flow....
7471625 Fault recovery system and method for a communications network  
A source node of a network transmits a path setup message for requesting a traffic path to a destination node. First and second nodes, located between the source and destination nodes, establishes...
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...
7447429 Bidirectional line switched ring network  
A bidirectional line switched ring network which enables high-speed operation with improved reliability because of a reduced software processing load is disclosed, and the network includes a...
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...
7428211 Transmission apparatus and method of multi-service tributaries over RPR  
A data transmission apparatus used in a multiple service ring is described. The apparatus includes at least two nodes coupled to at least one aggregate pipe and at least one tributary. The...
7421203 Method for transmitting packet in wireless access network based on wavelength identification code scheme  
A method for transmitting a packet in a wireless access network based on a wavelength identification code scheme. The method comprises the steps of connecting n number of RNCs (Radio Network...
7400574 Method and apparatus for managing a loop network  
A method and apparatus for managing a loop network, the loop network ( 200 ) including at least one loop ( 206, 208 ), a plurality of devices ( 210 ) connected to the at least one loop ( 206, 208 )...
7376138 Optical communications network  
In a communications network, a node receives a transit packet. The priority assigned to the transit packet is determined and when it has a low priority then the transit packet is removed and a...
7372807 Method and apparatus for multiplex transmission  
In a transmission network including multiplex transmission units A, F, G, D and E, when the line breakage has occurred on the OC-12 transmission path of the direction from unit A to unit F, the...
7369769 Ethernet passive optical network ring and its method of authorization and collision detection  
An Ethernet passive optical network (EPON) ring for providing protection against fiber failures. The optical network unit (ONU) is coupled to the ring fiber by a three-port passive optical...
7352729 Wireless communication system for multi-hop connection, source station, radio station and pilot signal used therein  
A destination station in a wireless communication system for a multi-hop connection selects a transmission path having a minimum total of required transmission power values of respective stations...
7345992 System and method for embedding a sub-channel in a block coded data stream  
The present invention relates in general to a method, apparatus, and article of manufacture for providing high-speed digital communications through a communications channel. In one aspect, the...
7339888 Bridge and route change method of network using the same  
A plurality of bridges are interconnected between respective ports thereof in a ring shape to configure a network containing a redundant route. When a bridge has a blocking port, the bridge...
7334070 Multi-channel memory architecture for daisy chained arrangements of nodes with bridging between memory channels  
Multiple memory channels of a multi-channel memory architecture are effectively bridged together to enable data traffic associated with various nodes in daisy chain arrangement to be communicated...
7319663 Method for controlling switching in bidirectional line-switched ring  
A method for controlling switching in a bidirectional line-switched ring network configured by a plurality of optical fibers and a plurality of nodes, (i) having a first node receive as input an...
7317681 Redundancy for dual optical ring concentrator  
A novel and useful mechanism for optical ring networks providing concentrator redundancy in the event of a failure of a concentrator. The nodes in a network are connected to dual concentrators to...
7307947 Protection system, layer 2 function block, node and ring network enabling wideband transmission of working traffic and protection of protection channel traffic  
A ring network having a plurality of nodes connected by a working channel and a protection channel. When no failure exists, the working channel and the protection channel are link-aggregated into...
7302615 Method and system for analyzing loop interface failure  
A disk array apparatus is provided, which has dual FC-Als to each of which an enclosure service unit connects, and is capable of performing loop diagnoses including detachment and reconnection of...
7283740 Optical ring network with optical subnets and method  
An optical network includes a plurality of subnets. The subnets each include a plurality of add/drop nodes coupled to the optical ring and operable to passively add and drop traffic to and from the...
7283739 Multiple subnets in an optical ring network and method  
An optical network includes an optical ring and at least three subnets. Each subnet includes a plurality of add/drop nodes coupled to the optical ring. The add/drop nodes are operable to passively...
7280472 Protection switching at a network node  
Protection switching between primary and secondary paths in a packet-based network involves table entries that are pre-programmed with a primary path, a secondary path, and a value that identifies...
7280470 Ring network for sharing protection resource by working communication paths  
Multiple working paths are established on each working rings and multiple protection paths are established on each of multiple protection rings. A working path on a first working ring spans across...
7277443 Asynchronous serial interface (ASI) ring network for digital information distribution  
A digital information distribution system having a plurality of nodes that are connected to one another by counter-rotating data paths. Each node comprises a ring terminal that selects data packets...
7274656 Protection system and method for resilient packet ring (RPR) interconnection  
A failure protection between interconnected adjacent Resilient Packet Rings (RPRs) in a multiple RPR network is provided. Two paths, a regular message path and a protection path, are provided...
7266295 Modular reconfigurable multi-server system and method for high-speed networking within photonic burst-switched network  
A modular reconfigurable multi-server system with hybrid optical and electrical switching fabrics for high-speed networking within a wavelength-division-multiplexed based photonic burst-switched...
7260325 Network component for an optical network comprising an emergency operation function, especially for an optical network in ring topology  
A network component ( 3 d ) for an optical network ( 1 ) is described, including a coupling device ( 2; 4, 5 ) for optical coupling of the network component ( 3 d ) to the optical network ( 1 ),...
7242860 Optical protection switching using 2 by 2 switching functions  
A network is protected against interruption of service while one or more faulty switches or optical fiber transmission lines are repaired or replaced, by an interconnecting configuration of small...
7234079 Method and system for enabling recovery of data stored in a computer network; a method and a system for recovering data stored in a computer network  
A method for enabling recovery of data stored in a computer network, the computer network comprises a plurality of computer nodes, the method comprising the steps of generating a set of redundancy...
7231503 Reconfiguring logical settings in a storage system  
A storage system having multiple I/O interface ports is configured to detect a failed communication condition at a port. The storage system is configured to then attempt communication using a port...
7200109 Method and system for protecting frame relay traffic over SONET rings  
A frame relay (FR) protection method generates an OAM frame to other nodes upon detecting a defect on a SONET ring. The protection frame comprises a type of failure and a location of failure. A...
7184663 Optical ring network with hub node and method  
An optical network includes an optical ring and a plurality of add/drop nodes coupled to the optical ring. Each of the add/drop nodes is operable to passively add and drop one or more traffic...
7170852 Mesh with projection channel access (MPCA)  
A method for a communications network with a protect channel transmitting protect channel data and working channel transmitting working channel data includes transmitting the working channel data...
7167646 Wavelength and filter arrangement for WDM networks  
In a ring having first and second adjacent nodes, and two fibers carrying information between the first and second nodes, the first fiber carries information in one direction, while the second...
7161899 Interlocking SONET/SDH network architecture  
A SONET/SDH architecture is disclosed that enables the multiplexing of STS-1's from different SONET/SDH rings into a single STS-N for transmission via a single optical fiber, but while maintaining...
7146432 Methods, systems and computer program products for providing failure recovery of network secure communications in a cluster computing environment  
Methods, systems and computer program products provide for recovering from the failure of a primary distribution processor which provides secure communications over a network in a distributed...
7145864 Redundant link management switch for use in a stack of switches and method thereof  
A redundant link management switch for use in a stack of switches forming a closed-loop link topology, including a stacking module, a processor and a management module. The stacking module has an...
7130263 Heterogeneous connections on a bi-directional line switched ring  
In one embodiment, a network element is to be coupled to a first and second span of a number of spans that interconnect a set of network elements to form a ring network. In addition, each of the...
Matches 1 - 50 out of 196 1 2 3 4 >