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7623466 |
Symmetric connection detection
Symmetric Connection Detection (SCD) is a method of detecting when a connection has been fully established in a resource-constrained environment, and works in high-speed routers, at line speed....
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7620389 |
Method and system allowing lawful interception of connections such a voice-over-internet protocol calls
The invention relates to a method and communication system allowing interception of a communication or connection of a target to be intercepted. According to preferred embodiments of the invention,...
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7620033 |
Method for optimal path selection in traversal of packets through network address translators
Reduction of administrative overhead in maintaining network information, rapid convergence on an optimal routing path through the data network, and utilization of only required network resources...
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7609622 |
Communication system having enhanced reliability
A method for a system including a plurality of encoders each for receiving a first signal and encoding to generate a respective second signal for sending to a respective subscriber, comprising...
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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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7606237 |
Sharing restoration path bandwidth in mesh networks
A shared mesh data network (SMDN) for path-based recovery at the packet level. In one implementation, a first link in the network is part of two or more different protection paths, where each...
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7606193 |
Methods for implementing a dynamic frequency selection (DFS) feature for WLAN devices
Various regulatory domains promulgate standards to define how wireless devices should operate in certain frequency bands. The 5 GHz spectrum is of particular importance to certain regulatory...
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7596290 |
Optical-switch testing apparatus, optical-signal switching apparatus, optical-switch testing method, and control method for optical-signal switching
A light source supplies optical signal to an optical switch and a detector detects light receiving level. A control unit changes a deflection control amount for changing an angle of a tilt mirror,...
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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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7596093 |
Method and system for isolation of a fault location in a communications device
The present invention provides a system and method of identifying a failure location in a datapath in a communication element, the datapath traversing from an ingress point through at least a first...
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7593318 |
Method and apparatus for header updating
Methods and systems include establishing a connection between two agents, storing a transaction header for data packets being transmitted from one agent to the other, transmitting the packets,...
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7587624 |
Method and apparatus for telecommunication reliability by media connectivity endpoint selection of a control entity
A method and apparatus for assuring telecommunication reliability by receiving from each of a plurality of control entities factors concerning priority of each of the plurality of control entities;...
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7583604 |
Probe for measuring quality-of-service parameters in a telecommunication network
A measuring probe, able to access data flows composed of packets transmitted along a path formed by a plurality of equipment in a telecommunication network, having a measurement module to perform...
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7583603 |
Scalable and fault-tolerant link state routing protocol for packet-switched networks
A distributed Link-State Routing Protocol (LSRP) system in a packet switch having external communication ports has a first card executing Update process of the LSRP, making database updates, a...
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7573829 |
Method and apparatus for low overhead network protocol performance assessment
A method and apparatus for testing network performance are provided. In data provided by an application on a first host for transport or communication to an application associated with a second...
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7573828 |
Fault isolation system and method
A fault isolation system and method. A hierarchical numbering system is applied to devices within a cable network. Each subscriber is associated with a “last active device” or “LAD”...
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7573825 |
Methods, apparatus and computer program products for testing a voice over Internet protocol communication system
Methods, apparatus, and computer program products are provided for testing a Voice Over Internet Protocol (VoIP) communication system. A VoIP test phone call is generated through an Internet...
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7570641 |
Techniques for watermarking and distributing content
Techniques for watermarking and distributing are provided. Content is broken into frames, each frame includes a watermark. Resources request the content and each frame of each resource's acquired...
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7570579 |
Method and apparatus for fast failure detection in switched LAN networks
A switch detects port failures and identifies a MAC address associated with the port failure. The switch then sends a failure notification message to other ports on the switch that identifies the...
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7564797 |
Method and system for conveying multiple calls on a single telephone line
A system for implementing multiple communication channels on a single twisted pair transmission line is disclosed. The system derives additional communication channels by way of a separate...
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7564795 |
Obtaining per-port location information for wired LAN switches
In one embodiment, a device with a wireless transceiver and a network interface, such as a wireless location determination device or a laptop with wireless capability and an Ethernet port, is...
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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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7542428 |
Geographical network alarm viewer
Methods and systems provide a geographical network alarm viewer (GNAV) application that receives, tracks, aggregates, reports, and maps data associated with cable telephony services outages...
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7535825 |
Network routing using link failure information
Link failure messages are sent through a network to accelerate convergence of routing information after a network fault. The link failure messages reduce the oscillations in routing information...
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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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7512075 |
Method and apparatus for collecting statistical information from a plurality of packet processing blocks
A system ( 100 ) can update a network performance counter and include link layer (MAC blocks) devices ( 102 - 0 to 102 -N) coupled in a daisy chain manner. A single performance counter ( 104 )...
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7483381 |
Remote testing access
An embodiment of the invention includes a method of operating a remote testing access system. The method comprises receiving a test request from a test device over an incoming time division...
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7480256 |
Scalable and fault-tolerant link state routing protocol for packet-switched networks
A distributed Link-State Routing Protocol (LSRP) system in a packet switch having external communication ports has a first card executing Update process of the LSRP, making database updates, a...
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7480251 |
System and method for detecting unidirectional links
A method of testing a primary device for two-way communication between the primary device and one or more other devices in communication therewith in a network is disclosed. The method includes...
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7471635 |
Method and apparatus for test pattern generation
A fibre channel switch element that can generate a character or frame based test pattern is provided. The switch element includes a buffer that can be coupled to a transmission protocol engine for...
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7460484 |
Lawful intercept of traffic connections
Apparatus and method are provided for dynamically establishing lawful interception taps within connection-oriented communication networks. Taps are established automatically upon establishment of a...
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7447160 |
Method and apparatus for providing automatic crankback for emergency calls
A method and apparatus for automating test procedures to determine if non-emergency signaling message processing errors impact emergency calls, e.g., E911 calls, are disclosed. In one embodiment,...
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7411915 |
Automatically configuring switch ports with appropriate features
A method and apparatus for automatically configuring a physical port of a switch with features appropriate to a connection type snoops incoming packets to determine the connection type and executes...
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7408898 |
Flexible network wireless transceiver and flexible network telemetry transceiver
A transceiver for facilitating two-way wireless communication between a baseband application and other nodes in a wireless network, wherein the transceiver provides baseband communication...
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7406050 |
Simulation and test system for at least one item of equipment on an AFDX network
The invention relates to a system for simulating at least one item of equipment missing on an AFDX network and for testing such a network comprising at least one real item of equipment, which uses...
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7391739 |
System and method for creating a frame relay port mirror
Systems and methods for monitoring communications in a frame relay network are described. In an embodiment of the present invention, an analyst or automated system creates a command to instruct a...
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7391720 |
Local span mesh restoration (LSMR)
An embodiment of the invention provides a method and apparatus for restoring a connection in a network. The connection is typically a sub network connection (SNC). In an embodiment, a failed line...
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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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7385919 |
Local network, particularly Ethernet network having redundancy properties, and coupling device for such a network
A local network, particularly an Ethernet network having redundancy properties, in which coupling devices (K 1 , K 2 , K 3 ) and a redundancy manager (RM) are interconnected in a ring-shaped...
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7372817 |
Apparatus and method for operating and maintaining private mobile communication service system using IP network
A private mobile communication service system is operated and maintained using an internet protocol (IP) network. The private mobile communication service network has a private base station...
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7359676 |
Systems and methods for adaptively scanning for wireless communications
This application is directed to systems and methods for adaptively scanning for wireless communications. Scan data associated with scanning one or more wireless network channels based upon a scan...
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7352716 |
Wireless network having IEEE802.11h-incompliant terminal wireless device communicating with IEEE802.11h-compliant base wireless device
In a wireless network structure which includes a wireless LAN device having a base station function (host device) which is compliant with IEEE802.11h and at least one wireless LAN device having a...
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7319671 |
Time division polling scheme for network management systems
Techniques for monitoring nodes in a network are provided. A circular list of bins is maintained and each bin stores identifiers to zero or more nodes to be monitored. At periodic intervals, the...
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7317691 |
Method for initializing a link suspend device for optimum receive recovery
The invention provides a method for initializing a link suspend device for optimum receive recovery. A method for negotiating link parameters to facilitate rapid recovery of the input data from a...
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7310315 |
Node judging method, communication system, and node measuring apparatus
In a communication system wherein a station transceiver and a plurality of nodes communicate in a TDM system through a signal transmission line, at least a part of the line is shared, a method to...
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7307957 |
Autoconfiguration of control connections in an exchange
The invention concerns autoconfiguration of control connections in a telecommunication switch. Multiplexers ( 31, 32, 33 ) themselves and without external control information find out which ports...
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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...
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7289623 |
System and method for an online speaker patch-through
A systems and methods described herein may be incorporated into a “service marketplace” system that matches users with potential information or service providers and establishes a real-time...
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7280486 |
Detection of forwarding problems for external prefixes
Methods and apparatus for enabling a provider to perform a tracing procedure to determine the existence forwarding problems within its network are disclosed. According to one aspect of the present...
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7233576 |
Method and apparatus for transferring data from an ATM connection table to memory for use by an application program
A system, method and computer program product are provided for copying data from an asynchronous transfer mode (ATM) connection table. In use, an ATM connection table on an ATM network is...
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