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7394758 Method for supporting SDH/SONET APS on Ethernet  
An Ethernet MAC APS Control sublayer is provided for supporting SDH/SONET APS standard functionality in Ethernet Networks. In accordance with one embodiment, an Ethernet MAC APS Control sublayer is...
7372840 Filtering of dynamic flows  
Methods and correspondent nodes to filter IP communications through firewalls in scenarios where dynamic pinholes are created to ensure an appropriate level of security is disclosed. The invention...
7355978 Method for implementing an OAM function by exchanging request-reply packets between stations of a RPR network, and corresponding packet frames  
Described is a method extending the OAM functionality in the RPR networks through a new OAM loopback procedure of request-reply type together with the definition of a new RPR OAM loopback frame....
7342877 Method and system for providing a loop-free ring topology  
A method for preventing loops in a ring topology of a computer network is disclosed. The method includes receiving a packet at a node on a shared packet ring and inserting a header containing an ID...
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...
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...
7308612 Fast port failover in a network switch  
A network switch comprises a plurality of ports that exchange frames of data with one or more network devices. A transfer circuit transfers the frames of the data between the ports. At least one 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...
7263062 Transmission apparatus with a function to switch a line in the event of a transmission failure  
A transmission apparatus to switch a line from a working line to a protection line in the event of a transmission-line failure on the working line. The transmission apparatus includes a classifying...
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...
7203161 Method and apparatus for recovery from faults in a loop network  
A method and apparatus for recovery from faults in a loop network ( 500 ) is provided. The loop network ( 500 ) has a plurality of ports ( 520, 530, 532, 534 ) serially connected with means for...
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...
7167445 Virtual line switched ring (VLSR) connection state distribution scheme  
Systems and methods consistent with this invention allow for each node within one or more rings to obtain connection and topology information from other nodes within these rings. In such a system,...
7151742 Flow control for communication ring access control  
Ring access control circuitry comprises a receive interface, a host interface coupled to the receive interface, a mate interface coupled to the host interface, a flow control agent coupled to the...
7142504 Fault tolerant network traffic management  
A system and apparatus for transmitting transit data through a network with first and a second rings coupling two or more nodes. In one aspect, when the first ring is intact and the second ring has...
7116638 Method for identifying mis-optioned data communications circuits  
Methods for identifying a mis-optioned data communications circuit are provided. A test point is configured providing access to a data communications circuit for operation of a first data...
7113699 Fault forwarding in an optical network  
A system and method for forwarding fault information in an optical network is disclosed. Responsive to a fault being detected at a node, the fault information is forwarded to the destination node...
7102995 Supporting SDH/SONET APS bridge selector functionality for ethernet  
An Ethernet Automatic Protection Switching (APS) Bridge Selector is provided for supporting SDH/SONET APS standard functionality in Ethernet Networks. In accordance with one embodiment, an Ethernet...
7082557 High speed serial interface test  
A high speed, two-way serial interface with a scrambler and de-scrambler may be tested by sending a single word repeatedly through the scrambler to create a pseudo-random sequence. The...
7065268 Link discovery and verification procedure using loopback  
Systems and methods for link discovery and verification technique that minimize the need for line termination resources that generate and interpret packets. Of two nodes verifying a link to one...
7054558 Method for traffic protection in WDM fiber optic transport networks  
A method for the protection of fiber optic ring-shaped transport networks, the networks including network elements connected by spans, optical paths being installed between the network elements,...
7042836 Transmitting apparatus  
A transmitting apparatus for cross connecting and transmitting main signals which enter via ring-configured transmission lines to which working and protection channels have been assigned in first...
7035203 Interconnection between telecommunication MS-SPRING and SNCP ring networks  
A method is disclosed for interconnecting an MS-SP ring network and an SNCP ring network in a Dual Node and Bridge and Switch architecture through a primary interconnection node and a secondary...
7020226 I/Q distortion compensation for the reception of OFDM signals  
A transmitter ( 102 ) generates a first set of data symbols and a first pilot symbol ( 601 ) at a first time, and a second set of data symbols and a second pilot symbol ( 602 ) at a different,...
7016947 Convenient configuration of an identifier of a segment of a virtual circuit  
Configuring a segment identifier in a customer premise equipment (CPE) connected to a network. Several OAM loopback cells containing possible segment identifiers in the headers may be transmitted....
7012887 Method for restoring diversely routed circuits  
A method and apparatus for restoring a diversely routed circuit in a timely manner from an initial path failure includes the steps of receiving one or more triggers at one of a destination node and...
6993684 Ring control node  
The present invention relates to a ring system, in particular to a ring control node which increases the upper limit of the number of nodes that can be arranged on one ring by a BLSR control and...
6992975 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...
6977889 Cross-connect method and cross-connect apparatus  
There is described a cross-connect apparatus which can apply a cross-connect operation in place of a function of a hard switch that has conventionally been used for a purpose other than a...
6965572 Loopback capability for bi-directional multi-protocol label switching traffic engineered trucks  
A system and method for introducing a loopback capability for Multi-Protocol Label Switching (MPLS) bi-directional traffic trunks are discussed. MPLS is an emerging technology, which integrates...
6928050 Protected switching ring  
Normal 802.3 Ethernet requires a tree topology. If a ring or a loop exists, then packets will be forwarded around the ring indefinitely. If the ring is broken, then there is no possibility of...
6920508 WDM ring network  
A WDM ring network and method for distributing within such ring network for feeding in data and for distributing both working signals and protection signals on different transmission paths and in...
6892329 Selective protection for ring topologies  
A method for fault protection in a bidirectional ring network includes transmitting first and second flows of packets around the bidirectional ring network while defining the first flow as a...
6834139 Link discovery and verification procedure using loopback  
Systems and methods for link discovery and verification technique that minimize the need for line termination resources that generate and interpret packets. Of two nodes verifying a link to one...
6807190 Survivable distribution of broadcast signals in loopback rings  
A node for use in a multi-source ring transmission system includes a controller and storage. Identifiers, such as ring addresses, for the relative first and relative last source nodes within the...
6765864 Technique for providing dynamic modification of application specific policies in a feedback-based, adaptive data network  
A feedback-based adaptive network is described wherein at least a portion of the network elements report operating information relating to network conditions to a centralized data store. The...
6728207 Self-healing ring network and a method for fault detection and rectifying  
The present invention relates to a self-healing ring network and a method for fault handling in said network. Said network comprises two communication paths ( 1, 2 ) and at least two nodes (N 1 , N...
6714513 Enterprise network analyzer agent system and method  
A system, method and computer program product are provided for analyzing a network utilizing an agent. Initially, a signal is sent from a computer to a host controller utilizing a network. Next, a...
6697337 Method and apparatus for capture, analysis and display of packet information sent in an IEEE 802.11 wireless network  
A wireless analyzer device for an IEEE 802.11 Wireless LAN is programmed to perform both a per packet processing routine to obtain packet statistics, and a one second timer routine, followed by...
6658013 Method and apparatus for ensuring survivability of inter-ring traffic  
A method and corresponding network element configuration for delivering communications services between first and second survivable rings, each comprising a respective plurality of network...
6657953 Signal loopback device  
A signal loopback device including a multiplexing/demultiplexing unit to carry out multiplexing/demultiplexing between a DS3 signal serving as a digital signal conforming to a DS3 C-bit parity...
6639896 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...
6622258 Data protection in a ring network  
A method for reconfiguring a ring of nodes connected by a working fiber and a protection fiber upon disruption of the signal in either the working fiber or the protection fiber includes signaling...
6603775 Dynamic allocation of communication resources within a communication system  
A communication system comprising a first communication device configured to receive an audio based transaction, wherein the first communication device supplies formatted transaction data to a...
6594232 Transmitter-based path protection switching in a ring network  
A system and method for path protection switching in ring networks is provided in which the path protection switch occurs at the transmitter node that initiated a particular virtual channel of data...
6584535 Configurable serial interconnection  
A configurable interconnect for use with high-speed electronic system components. The interconnect uses a lightweight protocol with control characters embedded into the data stream. The control...
6574192 Communications network and an add and drop node  
A communications network comprising at least two nodes is disclosed. The network has two communication paths that carry traffic in opposite directions and work as a bi-directional bus. The network...
6512765 Exchange  
An exchange equipment using STM able to achieve an improvement of an efficiency of use and an improvement of ease of increase of terminal cards, that is, an STM type exchange, including a time...
6490247 Ring-ordered dynamically reconfigurable network using an existing communications system  
A ring-ordered dynamically reconfigurable computer network utilizing an existing communications system. The network comprises a plurality of nodes. Each node is coupled to the existing...
Matches 1 - 50 out of 158 1 2 3 4 >