Matches 51 - 100 out of 292 < 1 2 3 4 5 6 >


Match Document Document Title
8085670 Method and system for originating connectivity fault management (CFM) frames on non-CFM aware switches  
A system for originating connectivity fault management (CFM) frames on non-CFM aware switches is disclosed. In the disclosed system, an OAM (Operations Administration and Management) proxy...
8072878 Packet ring network system, packet transfer system, redundancy node, and packet transfer program  
In a ring network to which a plurality of nodes are connected, even though a failure occurs in a link between a node and a client apparatus (a user terminal) or a node itself, communication...
8055765 Service take-over method based on apparatus disaster recovery, service transfer apparatus and backup machine  
A service take-over method based on apparatus disaster recovery, the method includes: transferring, by a service transfer apparatus, a service control message originally sent to a production...
8031589 Metropolitan area local access service system  
A local access fiber optical distribution network is disclosed in which a dedicated pair of diversely routed optical fibers is routed in the distribution network for each customer. In a preferred...
8018842 Counter multi-failure system and common link terminal device used therein  
Arrangements dealing with multiple link failures occurring in a communication network including a first ring and a second ring connected to the first ring by sharing part of a link in the first...
8014276 Scheduling system and scheduling method for the same  
A scheduling system may include a read sequence management table that includes a group of positions for arranging data received from a group of lines and a schedule management table to store a...
8004967 Ring network routing method and ring network node  
The present invention discloses a method for routing in a ring network, the ring network comprising multiple connected nodes, wherein, the method includes: each node in the ring network acquiring...
8000232 Method for controlling redundancy and transmission device using the same  
A redundancy control method is disclosed that controls a first redundancy function that switches between a working line and a protection line in response to a detection of a line error and a...
7990851 Method, apparatus and computer program product for redundant ring communication  
Sets of communication modules each have a pair of ring-channel ports for a ring-configured channel in a network, a peripheral device port for peripheral device data, and dual-ring ports for an...
7987313 Circuit of on-chip network having four-node ring switch structure  
A hierarchical ring architecture is constructed with on-chip networks. The on-chip network includes two type-0 ring nodes and two type-1 ring nodes. Multiple data transfer is provided in parallel...
7975064 Envelope packet architecture for broadband engine  
A mechanism provides for sending an envelope and replying to an envelope. A transmitter is configured to send an envelope. A receiver is coupled to the transmitter, wherein the receiver is...
7974185 Three fiber line switched ring  
A 3 fiber line switched ring (3FLSR) provides protection for (optical) transmission networking wherein N nodes are connected via 3 lines (or optical fibers) in a ring topology. Two of the three...
7965658 Shortening of communication cutoff time  
A topological information management frame is classified based on the contents stored in the topological information management frame, and information stored in a database is updated based on the...
7961596 Ring-shaped redundant communication path control method  
In a ring redundant communication path control method, each of transfer apparatuses periodically transmits an inspection frame for inspecting a communication path, detects a failure of the...
7957269 Method and system for synchronization of packet  
A message synchronization demarcation method includes: a backup board receives a message of an opposite terminal from an interface board; the message is copied to a main board; the main board...
7929427 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...
7925126 Fiber sensing system with self-detection mechanism  
The present invention discloses a fiber sensing system with self-detection mechanism which utilizes a central office to control secondary ring architecture formed by fiber sensor, remote node and...
7920465 Method and apparatus for transmitting the control signal of resilient packet ring media access control  
The present invention provides a method and apparatus for transmitting control signal of Resilient Packet Ring (RPR) Medium Access Control (MAC), including: encapsulating a control signal of RPR...
7916668 Spanning tree protocol with burst avoidance  
An apparatus and method for controlling bridge protocol data unit bursts is disclosed. The invention in the preferred embodiment is a switching device with a port enabled with a link management...
7911940 Adaptive redundancy protection scheme  
A redundancy protection scheme comprises sending a protection packet from the primary network interface to the secondary network interface, the protection packet having a hardware address of the...
7907549 Modeling a ring network using a ring object  
Modeling a ring network of a network system includes creating a ring object that models the ring network. The network system includes a network element that has components. The ring object...
7903586 Ring rapid multiple spanning tree protocol system and method  
In an embodiment, a method is disclosed for operating a network having a group of bridges connected together to form a ring, each bridge having two ports assigned to the ring to form a group of...
RE42095 Method for transferring utility optical signals and optical-line network  
The control of the transmission of useful optical signals on different line paths of an optical transmission device is accomplished via at least one of the following features: using signal sources...
7843813 Managing hierarchically organized subscriber profiles  
Apparatus are provided for managing hierarchically organized subscriber profiles. According to one embodiment, a router includes multiple virtual interfaces and a policy engine. The virtual...
7840133 Method and system for hybrid protection in optical networks  
A technique for carrying out protection of data traffic in a multi-channel multi-section optical communications network by simultaneously using Optical Multiplexed Section (OMS) protection and...
7839952 Data rate coordination in protected variable-rate links  
A method for communication includes sending first data over a first communication link to a destination communication system at a first data rate, which can be varied. Second data, including at...
7828209 Electronic payment terminal diagnostics  
The ‘IP Diagnostics’ software is a new and innovative method of aiding the deployment and troubleshooting of IP enabled POS terminals. Its purpose is to identify where a failure in the IP...
7792054 IP backbone network reliability and performance analysis method and apparatus  
This invention provides a tool for reliability evaluation and performance analysis of an IP backbone network by using the network packet loss ratio as the main measurement. A queuing model and...
7792132 Framer/mapper/multiplexor device with 1+1 and equipment protection  
In one embodiment, the present invention is a framer/mapper/multiplexor (FMM) device that can simultaneously (i) send protection copies of both its working incoming high-speed (e.g., STS-12)...
7778159 High-integrity self-test in a network having a braided-ring topology  
In one embodiment, a node comprises an interface to communicatively couple the node to a plurality of independent communication links. The node changes the mode in which the node operates when the...
7778162 Multiple service ring of N-ringlet structure based on multiple FE, GE and 10GE  
A data transmission apparatus used in a multiple service ring includes at least two nodes coupled to at least one aggregate pipe and at least one tributary. The data transmission apparatus...
7768906 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) via...
7751705 Optical channel intelligently shared protection ring  
An optical ring network has one or more working wavelengths and multiple protection wavelengths adapted to support the working wavelength(s). Routing tables may be used in network nodes to assign...
7746767 Method for providing extra-traffic paths with connection protection in a communication network, related network and computer program product therefor  
Extra traffic paths are provided in a communication network including at least two protection channels associated to respective transmission channels. Each protection channel admits an active...
7715363 Wide area network with a large number of endpoints and a high bandwidth optical backbone  
The present invention relates to the networking of a large number of endpoints using a high bandwidth optical backbone. The large number of endpoints, which may be thousands or more in number,...
7697417 Methods and devices for re-routing MPLS traffic  
Multi-Protocol Label Switched (MPLS) traffic is re-routed to an alternate, Label Switched Path (LSP) to bypass a failure along a primary LSP, even though the failure occurs at or along an ingress...
7698592 Apparatus and method for controlling raid array rebuild  
An apparatus and method are disclosed for rebuilding a data storage array having plural communication paths. A first error detecting component detects an error at a data storage device of a data...
7697552 MAC address scalability in interconnected rings  
A method for communication is used in a communication network that includes multiple ring nodes arranged in at least first and second ring networks, which are connected by one or more of the ring...
7680136 Method and apparatus for allocating label to path in ring network  
A transmission device, which carries out a route control of a frame based on a label included in the frame in a ring network, includes: a generating unit that generates a message for collecting...
7675899 Packet-aware transport architecture for enhanced data volume  
Packet-aware transport architecture and techniques for implementing same that enhance data volume by scaling effectively to rapid data growth are disclosed. For example, a technique for...
7668084 Systems and methods for fault-tolerant high integrity data propagation using a half-duplex braided ring network  
In one embodiment, a network comprises a plurality of nodes that are communicatively coupled to one another using bidirectional, half-duplex links. The network has a logical first channel over...
7668083 Systems and methods for forwarding data in a communications network  
A communications network (100) includes at least one control station (160) and a group of network nodes (110, 120, 140). The at least one control station (160) generates batches of forwarding...
7660237 Synchronous clock supply system and synchronous clock supply method  
A switching unit (1011) receives video data (103) sent from a device (102), and sends an ATM cell synchronized with the clock to switching units (1012-1014) by a signal (including optical data)...
7660238 Mesh with protection 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...
7660316 Methods and apparatus for device access fairness in fibre channel arbitrated loop systems  
Methods and apparatus for switching Fibre Channel Arbitrated Loop Systems is provided between a plurality of Fibre Channel Loop devices. In one aspect of the invention, the system switches based...
7649836 Link state machine for the advanced switching (AS) architecture  
A link state machine for the Advanced Switching (AS) Architecture includes added transition sub-states. Transition events typically handled in AS link states are handled in the transition...
7647439 Electronic Warning System  
A building control or danger warning system includes a two-core circular bus for voltage supply and for communication with bus user circuits connected to the cores of the circular bus. The bus...
7633857 Node and method of setting backup path  
A node in a first ring stores therein connection information about connecting nodes between a second ring and a third ring. Upon receiving a route of a working path by a signaling, the node...
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...
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...

Matches 51 - 100 out of 292 < 1 2 3 4 5 6 >