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6865149 |
Dynamically allocated ring protection and restoration technique
The disclosed network includes two rings, wherein a first ring transmits data in a clockwise direction, and the other ring transmits data in a counterclockwise direction. The traffic is removed...
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6865157 |
Fault tolerant shared system resource with communications passthrough providing high availability communications
A communications passthrough mechanism for high availability network communications between a shared system resource and clients of the system resource. The system resource includes a...
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6862283 |
Method and apparatus for maintaining packet ordering with error recovery among multiple outstanding packets between two devices
A data communication system ( 10 ) has a plurality of devices ( 12, 14, 17 ) which communicate by transmitting information packets having order tags which are processed by an input unit ( 60 ) and...
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6856593 |
Communication system, relay apparatus, end system, and communicating method
In a relay apparatus, when an error of the next relay destination is detected at the time of reception of a connection establishment request, the connection establishment request is refused by a...
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6853617 |
System and method for TCP connection protection switching
If an active router Master Control Processor (MCP) fails, a backup MCP switches over without interrupting peer network router connections, because all previously established connection parameters...
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6839325 |
Wireless communication system which uses ARQ packets to ACK a plurality of packets from an 802.15 superpacket
Automatic repeat request (ARQ) operations can be implemented in wireless communications by sending ( 2401 ) a plurality of data packets in a superpacket, and responding ( 2430 ) with an...
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6829246 |
System and method for extending the range of xDSL services
A system and method for extending the distance that xDSL services are able to be provided to subscribers. A DSLAM located at a Central Office is connected to a general-purpose network, such as the...
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6829478 |
Information management network for automated delivery of alarm notifications and other information
A remote Information Management Network routing system located either at an independent hosting facility or at a central station monitoring facility that receives event and alert information from a...
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6826200 |
Combiner/TMUX simulated B1 transparency in fiber optic networks running SONET
The present invention overcomes the shortcomings of the prior art by providing a method of encoding bit error rates using a two-tiered system. If the bit error rate is less than a threshold value,...
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6819655 |
System and method of analyzing network protocols
A method and system for analyzing a public switched communications network from a remote place via the public Internet. The system comprises an access device which collects data from one or more...
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6816461 |
Method of controlling a network element to aggregate alarms and faults of a communications network
A distributed method and system of controlling a communications network having a plurality of spans of interconnected network elements some of which include a network element processor distributes...
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6816910 |
Method and apparatus for limiting network connection resources
Various embodiments include methods and apparatuses limit connection resources at one or more first network nodes. In one method embodiment, at a second network node, a handshake message is...
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6816988 |
Method and system for minimal-time bit-error-rate testing
A bit-error rate is tested in a minimal necessary time period. A block of bits is measured and a cumulative number of bit errors is counted in parallel with calculation of a posterior cumulative...
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6810419 |
Device for operating a network management system
An operating device and method handles event messages based on Internet technology for operating a network management system. The operating device receives an event message from a network element...
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6810010 |
Redundant LAN system, active line/stand-by line switching method, and recording medium
A redundant LAN system is characterized in that with a redundant LAN system which includes sub-LAN systems with redundancy incorporated by an active and a stand-by mode, a plurality of the sub-LAN...
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6810011 |
Protection switching within an OP-n layer
A protection switching technique associated with an OP-n sublayer of a communications network is presented. Among the advantages presented by this protection switching technique of the present...
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6810021 |
Frame relay apparatus and method
An entry processing unit enters into a table the frame information and the reception time of a frame received by a frame reception unit. Upon the receipt of a frame by the frame reception unit, a...
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6810009 |
Connection setting method in ATM network
In an ATM network in which an SPVC is realized and in which in order to carry out speedily the detection of failures on a line, a software PVC realized by a P-NNI, i.e., a PVC is established...
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6807152 |
Enhanced multiframe processing for tandem connection trails with transmission protection schemes
A method of transmitting in a synchronous hierarchic network system data is provided using at least a path segment between a first network element (A) and at least a second network element (F) on...
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6807148 |
Demand data distribution system
A demand data distribution system architecture applicable to data distribution systems and entertainment systems is disclosed. The demand distribution system architecture includes data sources and...
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6801504 |
Node device of ATM communication network and method of failure alarm notification
A node device in an ATM communication network is provided which is capable of generating a cell for creating a failure alarm rapidly so as not to apply a load to a processor. The node device copies...
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6801496 |
Network addressing scheme for reducing protocol overhead in an optical network
A method for operating a network and a network architecture implementing the method are described. The method, in one embodiment, begins by grouping a plurality of nodes into zones, where the...
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6798749 |
Method and system for the management of an interface in a telecommunication system
Method and system for the management of a V5 interface in a telecommunication system comprising a first network element, a second network element, which is connected via a V5 interface to the first...
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6798748 |
Enhanced multiframe alignment for tandem connection trials
According to the invention a synchronous hierarchic network system and a method of transmitting data are disclosed using at least a path segment between a first network element and at least a...
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6785473 |
WDM network and WDM network device
Disclosed is a WDM network which has: a lightwave path which connects between clients and each of which is provided with an overhead, and a sub-network which is defined by dividing the WDM network....
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6785243 |
Error reporting in a mobile telecommunications network
A method of reporting errors in a mobile telecommunications network comprising a core network and a UMTS Terrestrial Radio Access Network (UTRAN). The method comprises the steps of generating an...
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6781954 |
Transfer of SS7 signalling message contents over packet broadcasting network (LAN) from multiple signalling points to single point (multiple point-to-point)
Methods and apparatus for signal monitoring of messages in a telecommunications network having a plurality of switches and network elements therein alleviate the need for external hardware to be...
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6778781 |
Health check algorithm for protection circuit in optical network
An optical network has an optical splitter connected to (1) a working optical subscriber unit (OSU) of a working circuit via a working optical fiber, (2) a protection OSU of a protection circuit...
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6775542 |
Recovery in mobile communication systems
The present invention relates to a method of recovering from a processor fault in a mobile communication network node provided with a plurality of processors. In use, connections are established...
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6768719 |
Method and apparatus for mobile assisted detection of a transmission fault on the abis interface of a mobile telecommunications network
A mobile telecommunications system comprising a network ( 30 ) is described having at least one base station transceiver ( 31-34 ) for communication with mobile terminals ( 50 ) within a first...
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6762993 |
DCME system with circuit switching capability
A DCME system having a circuit switching capability for use in a redundant communication system is disclosed. Alarm conditions defined in ITU-T Recommendations G.732 and G.763 are previously...
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6757242 |
System and multi-thread method to manage a fault tolerant computer switching cluster using a spanning tree
A system, method and computer program to detect and recover from a communications failure in a computer network. The computer network has several nodes which include processor-based systems,...
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6757727 |
Top-down network analysis system and method with adaptive filtering capabilities
A system, method and computer program product are provided for filtering communications over a network. Initially, a user is allowed to select from a plurality of network communication protocol...
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6756898 |
Network termination device, alarm transfer system and alarm transferring method
Provided is a mode of alarm transfer for use in a system for transmitting an encapsulated Ethernet signal between an Ethernet termination device ( 110 ) connected to a terminal ( 100 ) and an...
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6754182 |
Method and apparatus for policing cell-based traffic
A method and system for enforcing a transmission control parameter for a virtual connection comprising multiple cells within an input port. The virtual connection has a nominal inter-cell arrival...
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6751748 |
Context redundancy system on a wireless and packet-based telecommunications network interface
The present invention is a redundancy system in the interface between a wireless and packet-based telecommunications network. The redundancy system includes back-up support components coupled to...
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6744735 |
Diagnostic device, diagnostic method, and network system having diagnostic facility
In a network system having a network diagnostic facility, a plurality of control units are provided, each one of the control units being connected to a common communication line via its...
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6738344 |
Link extenders with link alive propagation
A link extender is used for extending links between end nodes or router nodes in a system area network. Nodes in the network transmit link alive symbols to indicate that a link is alive. The link...
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6731598 |
Virtual IP framework and interfacing method
An interfacing method and Virtual Internet Protocol (VIP) Framework that provides high fault tolerance and linear scalability of servers and network interfaces. The Framework has minimal impact on...
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6728204 |
Arrangement, system and method relating to data/telecommunication
An arrangement, a system and a method distribute messages in a communication system supporting communication of packet data. The arrangement includes a number of processors communicating with each...
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6724753 |
Control interface protocol for telephone sets for a satellite telephone system
A control interface protocol governs communications in a satellite telephone system. The satellite telephone system comprises a radio antenna unit (RAU) and a plurality of desksets connected to the...
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6724731 |
Radio communication system and control method, and information processing apparatus used therein
A radio communication system control method, a radio communication system, and an information processing apparatus used therein is one where system a server and terminals are linked via a plurality...
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6721276 |
Automated microcode test packet generation engine
A routing chip test case generator operable to generate test cases for testing microcode allows test cases to be directed to specific operations, such as those executed by an Application Specific...
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6718513 |
Fault monitoring system and fault reporting method
A fault monitoring system and fault reporting method therefore that monitor faults in a transmission system and notify a monitoring unit including maintenance personnel, a monitoring device, etc....
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6717922 |
Network configuration protocol and method for rapid traffic recovery and loop avoidance in ring topologies
A network configuration protocol and algorithm are described which resolve deficiencies with existing protocols. A large network having many bridges may be built as a combination of smaller...
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6714582 |
Code division multiple access communication system and code division multiple access transmitting apparatus
In a CDMA transmitting apparatus, a cross-correlation value between different spreading-code sequences used to spread respective ones of a plurality of transmit signals is calculated, an...
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6711135 |
HFC access network management system
A hybrid fiber coaxial (HFC) access network manager is formed to support a variety of functions related to the operation and management of an HCF access plant. The HFC access network manager allows...
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6711134 |
Monitoring system and method implementing an automatic test plan
Channel and test plans are implemented in connection with a plurality of nodes that communicate signals. The channel plan has one or more predefined specifications for each of one or more signal...
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6711409 |
Node belonging to multiple clusters in an ad hoc wireless network
A communication system has stations arranged in clusters of member stations, each of which communicates with the other member stations. One member station is a head station of the cluster that...
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6707795 |
Alarm correlation method and system
An alarm correlation method for use in a network management device is provided in which alarm correlation is performed between identified root-cause alarms and alarms which have been raised on...
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