Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 7675865 | Transfer of error-analysis and statistical data in a fibre channel input/output system A computer Input/Output system having a fabric, a control unit (CU) and a host computer including a channel, the channel having a channel port connected by a first link to a channel neighbor port of the fabric, and the control unit having a CU port connected by a se... | 03/09/2010 |
| 7668108 | Performance indicator for a high-speed communication system A method and apparatus for generating a performance indicator in a high-speed communication system. A plurality of disparate communication status signals with differing formats from a transceiver are combined in a logic module to create a single link quality indicat... | 02/23/2010 |
| 7656812 | Monitoring of data packets in a fabric A method of monitoring network traffic in a fabric and a Fibre Channel network are provided. The method includes: transmitting a monitoring configuration message to a plurality of fabric elements in a Fibre Channel network, said monitoring configuration message incl... | 02/02/2010 |
| 7656811 | Digital subscriber line access multiplexer wiring validation A test system detects proper connection wiring in a connection frame between a customer's lines and a DSL Access Multiplexer (DSLAM). A multi-loop tester at a central office generates a test signal on low frequency lines to a customer's connection in a connection fr... | 02/02/2010 |
| 7639625 | Tracing connection paths through transparent proxies In one embodiment, a method for tracing a connection path from a source node to a destination node through a network having one or more transparent proxies includes generating a trace packet at the source node, transmitting the trace packet over the network towards ... | 12/29/2009 |
| 7639624 | Method and system for monitoring network connectivity A method for monitoring network connectivity. The method may include the act of transmitting a respective request packet from a network interface card (NIC) of a plurality of NICs in a NIC team to an external network device. The method may also include the act of re... | 12/29/2009 |
| 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 of the computer network via a specific exit at the source, ii) to be... | 11/17/2009 |
| 7616581 | Path setup unit, path setup system and path setup method therefor A path setup unit, path setup system and path setup method comprises; a plurality of NEs (Network Elements) which constitute a network and to which path setup is possible; a path setup unit which inputs, into the NEs, control information for performing any one of pa... | 11/10/2009 |
| 7613124 | Method and apparatus for documenting network paths Methods and apparatus for documenting network path connectivity are described that allow a network management system/revision management system (NMS/RMS) to determine what equipment and ports support a network path by interrupting and restoring Power-over-Ethernet (... | 11/03/2009 |
| 7609643 | Transfer of error-analysis and statistical data after retry in a fibre channel input/output system A computer Input/Output system having a fabric, a control unit (CU) and a host computes including a channel, the channel having a channel port connected by a first link to a channel neighbor port of the fabric, and the control unit having a CU port connected by a se... | 10/27/2009 |
| 7602728 | Method and apparatus for determination of network topology Network topology information is determined in a network-based communication system by generating communications between, for example, selected pairs of endpoint devices each associated with a network. A given one of the communications is sent from a first one of the... | 10/13/2009 |
| 7599302 | Dynamic enforcement of MPLS-TE inter-domain policy and QoS A technique dynamically enforces inter-domain policy and quality of service (QoS) for Traffic Engineering (TE) Label Switched Paths (LSPs) between a local domain and a remote domain in a computer network. According to the enforcement technique, a Path Computation El... | 10/06/2009 |
| 7599303 | System and methods for sending trace messages A traceroute mechanism enables responses to the traceroute to reach the originating router (originator) along a multihop pseudowire (PW). A traceroute message includes an accumulator operable to count hops along a MH-PW, implemented as a time-to-live (TTL) field, as... | 10/06/2009 |
| 7596097 | Methods and apparatus to prevent network mapping A trace detector prevents network mapping and tracing by detecting an initial packet containing an initial time to live value that meets a first predetermined threshold range. The trace detector identifies a source address of the initial packet and adjusts a thresho... | 09/29/2009 |
| 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 is determined by transmitting by a first network endpoint one or a g... | 09/29/2009 |
| 7583605 | Method and system of evaluating survivability of ATM switches over SONET networks In a particular embodiment, a method of evaluating a network is disclosed. The method identifies potential failure points between a layer two asynchronous transfer mode network and a layer one Synchronous Optical Network (SONET) network. The method includes identify... | 09/01/2009 |
| 7570597 | Discovery process in a vehicle network A method of configuring a network within a vehicle, wherein the network includes a plurality of network elements and a plurality of communication links communicatively coupling the plurality of network elements for point-to-point communication, includes storing a la... | 08/04/2009 |
| 7564796 | Method and system for managing a network slowdown A system and method are disclosed for managing a network slowdown. The method includes measuring a time for a packet to travel from a source node over a given path to a destination node in the network; comparing the time with a threshold for the path; and generating... | 07/21/2009 |
| 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 packet network. The first interface is monitored for return of the pa... | 05/26/2009 |
| 7519003 | System and method for electronically identifying connections of a cross-connect system A system and method for electronically identifying connections established through a cross-connect system provides for identification of all hard-wired and temporary patch connections, and any modifications made to same. Connection identification and status informat... | 04/14/2009 |
| 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 modified to change source and destination network addresses of a tes... | 04/14/2009 |
| 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 also has an object to confirm the normality of a link between the optic... | 04/07/2009 |
| 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 are moved on the network routing device using the devices and communi... | 02/10/2009 |
| 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 inserting into an echo packet an originating device identifier in an ori... | 01/20/2009 |
| 7471637 | Method and system for monitoring idle network circuits A method is provided for monitoring a network that includes providing a path selector that can select between a first input and a second input, where the first input is coupled to a customer premises equipment interface that is operable to receive signals from custo... | 12/30/2008 |
| 7471638 | Testing for a misconnection between first and second networks An apparatus to test whether a first network is misconnected to a second network includes an interface to the first network, and a controller coupled to the interface to send a first message to the first network, the first message to request configuration informatio... | 12/30/2008 |
| 7463591 | Detecting data plane liveliness of a label-switched path Detecting if a label-switched path (LSP) is functioning properly. To test that packets that belong to a particular Forwarding Equivalence Class (FEC) actually end their MPLS LSP on an label switching router (LSR) that is an egress for that FEC, a request message car... | 12/09/2008 |
| 7453818 | Detection of potential forwarding loops in bridged networks Potential forwarding loops in bridged networks are detected. A switch monitors the movement of packet addresses in the forwarding table to different ports. If the port associated with an address changes multiple times in a short time duration, then a potential forwa... | 11/18/2008 |
| 7447161 | System and method for enhanced SONET network analysis In an illustrative method for providing enhanced SONET network analysis, data related to the structure of a SONET network is identified, for example, in a database. The data comprises details regarding the network elements that form the SONET network as well as data... | 11/04/2008 |
| 7444258 | Automated simulation testbench generation for serializer/deserializer datapath systems Embodiments herein present a method for automated simulation testbench generation for serializer/deserializer datapath systems. The method provides a database of transactors for generating and checking data within the datapath system, wherein the transactors are ada... | 10/28/2008 |
| 7436777 | Failed link training A data communications architecture employing serializers and deserializers that reduces data communications latency. In an illustrative implementation, the data communications architecture communicates data across communications links. The architecture maintains var... | 10/14/2008 |
| 7437476 | Optimizing flooding of information in link-state routing protocol A router executes a flooding algorithm. The router maintains a list of neighbors within an area data structure. When a new neighbor arises on an interface belonging to an area served by the router, the router updates the neighbor data structure describing that adjac... | 10/14/2008 |
| 7433320 | System and methods for network path detection Customer edge (CE) to CE device verification checks initiate routes from available CEs as a set of path verification messages, destined for remote CE routes serving a remote VPN. An extended community attribute, included among the attributes of the path verification... | 10/07/2008 |
| 7433319 | System and method for collecting and presenting service level agreement metrics in a switched metro ethernet network A method for monitoring a network includes injecting a plurality of data packets into the network. The data packets are transmitted between a source device and a destination device. A plurality of reflected data packets is collected. The plurality of reflected data ... | 10/07/2008 |
| 7433323 | Remote testing of high speed data and voice communication networks Faults or degradation of performance of a voice/data communication network (2) are identified without the need to dispatch service personnel by selectively testing isolated sections of the communication network. For some of these tests, the communication netw... | 10/07/2008 |
| 7433318 | Received path trace detection apparatus A received path trace detection apparatus includes (i) a specific byte extracting/holding function unit for receiving a path signal and extracting and holding once path information written for showing the path in specific bytes in the received path signal at a prede... | 10/07/2008 |
| 7433450 | Method and system for connection verification The present invention provides a method and system for connection verification. An embodiment includes a DSL based system, with a tester resident at a central office respective to a DSLAM. When a problem is encountered by a subscriber, the tester can be readily conn... | 10/07/2008 |
| 7430174 | Data flow between a communication node and a mobile node in a mobile network A method of transmitting a data packet on a communication path from a first communication node (CN1, CN2) to a second communication node (LFN1, LFN2) in a mobile network (115). The method includes receiving a route message (1010... | 09/30/2008 |
| 7428209 | Network failure recovery mechanism A mechanism for recovering from a failure in a network is disclosed, wherein a first set of information, such as a first packet, is initially sent from a source to a destination via a first route. As the packet travels along the first route, if a failure is detected... | 09/23/2008 |
| 7428213 | Method and apparatus for determining network routing information based on shared risk link group information A method and apparatus are disclosed for performing a shortest path first network routing path determination in a data communications network based in part on information about links that are associated as shared risk link groups. Micro-loops are avoided in computin... | 09/23/2008 |