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7619982 |
Active probe path management
A technique manages paths taken by probe packets sent from a source to a target of a computer network. The novel path management technique enables each probe packet i) to be transferred onto a path...
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7619981 |
Apparatus, system, and method for identifying network mis-cabling
An apparatus, system, and method are disclosed for detecting and reporting network mis-cabling. One embodiment of the apparatus includes a detection module, a comparison module, and a cabling...
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7616582 |
System and method for selecting data providers
A preferred data provider is selected from a plurality of data providers by receiving a request for data from a client together with client identification data, identifying a plurality of data...
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7613125 |
Method and apparatus for temporal alignment of multiple parallel data streams
Methods and apparatus for aligning the transmitters of two or more bidirectional ports of an integrated circuit (IC), particularly an application-specific IC (ASIC) or field-programmable gate array...
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7609645 |
Moving picture compression encoding transceiver apparatus
It is made possible to concretely estimate actual transmission bit rate in a frame of grasping a line state by using a report packet. Together with media packets encoded by a video encoder 1 and...
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7607093 |
Displaying network segment decode information in diagrammatic form
Network analyzing systems and methods are disclosed herein for analyzing a segment of a data communications network. One example of a network analyzing system includes a network analyzer that...
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7603479 |
Portable diagnostic device for trouble-shooting a wireless network and a method for trouble-shooting a wireless network
A portable diagnostic device (PDD) for diagnosing packet-based wireless networks. the PDD comprises an input device configured to convert user input into electrical signals, a radio frequency (RF)...
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7602729 |
Slow-fast programming of distributed base stations in a wireless network
A slow fast programming method for efficient remote field update in distributed base stations overcomes significant fiber propagation delay associated with a remote unit by applying programming...
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7596096 |
Method and apparatus for providing trace route and timing information for media streams
An apparatus and method that use media packets, such as Real-time Transport Protocol (RTP), packets with a specially define profile to determine the route and round-trip-time information. The route...
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7587202 |
Method for conducting digital interface and baseband circuitry tests using digital loopback
In a mobile device having a primary baseband circuit and a secondary baseband circuit and an interface between the primary baseband circuit and a secondary baseband circuit, a method for testing...
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7583606 |
Reducing overhead when using loopback cells for fault detection in bi-directional virtual circuits
An end system (“first end system”) concluding that a bi-directional virtual circuit is operational if the other end system (at the other end of the virtual circuit) has determined that the...
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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...
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7561527 |
Bidirectional forwarding detection
A protocol for detecting faults in a bidirectional path between two forwarding engines, where parts of the bidirectional path checked may include interfaces, one or more data links, and to the...
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7554908 |
Techniques to manage flow control
Method and apparatus to manage flow control for a network device are described.
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7551917 |
Telecommunications provisioning system and method using concurrent processes to provide different aspects of telecommunications service
A system and method are disclosed having concurrent processes that install different aspects of telecommunications service. In one embodiment, the provisioning method may comprise: (a) accepting...
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7548974 |
Adaptively processing client requests to a network server
In a computer network environment, a server protocol is provided to process read requests from clients. Rather than all read requests being processed synchronously or all read requests being...
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7548516 |
Method and communication arrangement for testing subscriber lines
To test at least one subscriber line that can be connected to a line unit, at least one test signal is emitted along the subscriber line, when the latter is not actively connected, and at least one...
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7539148 |
Circuit integrity in a packet-switched network
Techniques for performing a continuity check operation include sending a pattern of bits over a packet network connection through a first interface on a packet network to a second interface on the...
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7535850 |
Method and apparatus for providing voice path assurance testing through a packet network
A method and apparatus for voice path assurance (VPA) testing in a packet network such as an Internet Protocol (IP) network is provided. More specifically, the invention relates to a voice path...
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7529975 |
Method for testing processor subassemblies
A method for testing a processor subassembly includes providing a computer system comprising subassemblies. Each subassembly includes processors having internal communication paths and ports that...
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7523353 |
Method for detecting hang or dead lock conditions
A scheme for monitoring links in a point-to-point architecture computer system is discussed. The scheme monitors labels for transactions to determine if they have been reissued within a user...
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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...
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7519004 |
Loopback testing of a network interface device from a user-space software layer
A loopback test of the datalink layer of a network interface device is performed from a user-space software layer. In certain embodiments, network address translation rules in the network layer are...
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7515545 |
Signal repeater and switching device, method of detecting connecting relation between signal repeater and switching device and communication system
The present invention is intended to find a connecting state of a bidirectional signal repeater with an optical switch to prevent an erroneous registration of the topology. The present invention...
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7515542 |
Broadband access note with a virtual maintenance end point
A broadband access node includes a port for connection with a Digital Subscriber Line and a processor to run code that implements a virtual maintenance end point (vMEP). The vMEP translates an IEEE...
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7512120 |
Node, correspondent node, mobility anchor point, and home agent in packet communication system, packet communication system, and path MTU discovery method
In a packet communication system 1, 31 ( 51, 81 ) comprised of nodes and links, a destination node 3 ( 53 ) as a destination of a packet transmitted from correspondent node 2 ( 52 ) is...
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7512092 |
System and method for test loop timer operation
A system and method for test loop timer operation. A mobile station implementing a test procedure may receive a command to enter a test mode. A timer may be enabled and RLC data blocks may be...
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7505418 |
Network loopback using a virtual address
A method, apparatus and computer program product for performing network loopback using a virtual address includes detecting, in a system, data having a destination address matching an address...
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7502326 |
Methods used to simultaneously perform automated at-speed testing of multiple gigabit per second high serial pin count devices
A method performs automated at-speed testing of devices. The method includes the steps of generating multiplexer control signals, forming various signal paths between a set of multiplexers and the...
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7492719 |
Method of controlling loop-back process in Ethernet passive optical network
A method of controlling a loop-back process between a local device and a remote device in an Ethernet passive optical network simplifies the initiation and the termination processes for a loop-back...
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7489643 |
Increased availability on routers through detection of data path failures and subsequent recovery
Methods and systems for monitoring a data path on a network routing device are described. The data path includes a plurality of devices on the network routing device and an interface. Data packets...
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7484155 |
Analog base-band test apparatus and method by enhanced combination of JTAG and memory in mobile communication system
An analog base-band (ABB) chipset of a mobile communication system comprises a memory configured to store a test pattern, a test control unit configured to generate a control signal during a test...
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7480840 |
Apparatus, system, and method for facilitating port testing of a multi-port host adapter
An apparatus, system, and method are provided for facilitating port testing of a multi-port host adapter. The present invention includes a scheduler that schedules execution of a plurality of...
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7444428 |
Method and apparatus for estimating relative network proximity in the presence of a network filter
A method and apparatus for estimating relative network proximity between request routing agents and client agents are described herein. In one embodiment, the method includes a proximity estimation...
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7433302 |
Ethernet network implementing redundancy using a single category 5 cable
A method for providing redundancy in a daisy chain local area network employing Category 5 cabling for connecting network devices uses the normally unused twisted wire pairs in the single Cat 5...
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7423977 |
Smoothing algorithm for round trip time (RTT) measurements
A smoothing algorithm for round trip time (RTT) measurements is provided to a network device to effectively deal with variations or other potential anomalies that may occur in RTT measurements. The...
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7420968 |
High-speed switch architecture
A system of switch modules contains input demultiplexers connected to ports on each of the modules and output multiplexers connected to each of the modules. Each module has output and input...
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7420928 |
Testing of transmission quality in packet-based networks
The invention relates to the testing of transmission quality of transmission links in a packet network. According to the invention, the director and responder functionality are made available in a...
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7408883 |
Apparatus and method for performing a loopback test in a communication system
The invention is test apparatus and methods for performing loopback tests. The tests involve generating a packet-based test message having a source address and a destination address. When the test...
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7408882 |
Automatic discovery of network node addresses
The present invention provides a system and method for automatic discovery of network addresses. Briefly described, in architecture, one embodiment of the apparatus, among others, comprises: an...
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7406317 |
Maintaining a communications session with a mobile station
A mobile communications network includes various entities, such as a mobile station, a radio network, and a packet data node. In one implementation, the mobile station is enabled for an always-on...
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7391734 |
Method and system for obtaining logical performance data for a circuit in a data network
A method and system are provided for obtaining logical performance data for a network circuit in a data network. The network circuit includes both a logical circuit and a physical circuit. A legacy...
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7388843 |
Method and apparatus for testing loop pathway integrity in a fibre channel arbitrated loop
A method for performing a fibre channel arbitrated loop integrity test using a fibre channel switch element is provided. The method includes, sending a fibre channel frame through the arbitrated...
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7385931 |
Detection of network misconfigurations
A system includes a communication network having any number of separately addressable elements. An analysis device can test packet data paths between these elements by eliciting particular traffic...
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7373577 |
CAN system
Provided is a CAN system that can generate an error signal without requiring hardware for generating an error signal to be connected to a bus. A protocol processing part within a CAN controller...
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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...
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7366964 |
Method, system, and apparatus for loopback entry and exit
A loopback test to test a communication link for a layered interface where in a master agent programs the electrical parameters for the slave agent, such as, the offset, timing, and current...
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7366952 |
Interconnect condition detection using test pattern in idle packets
In some embodiments, a receiver can receive from an interconnect information packets and idle packets, where one or more of the idle packets includes a test pattern. A condition detector can detect...
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7366514 |
Method of handing off a packet switched to a circuit switched call
By obtaining the address of a circuit switching controller in a network with which a mobile station is registered, a packet call controller instructs the circuit switching controller to send...
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7362710 |
Organization and maintenance loopback cell processing in ATM networks
A communication system comprising a plurality of sources, a plurality of destinations, and a plurality of switches forming an asynchronous transfer mode (ATM) network connecting the sources to the...
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