Patent application number | Description | Published |
20090296589 | METHOD AND APPARATUS OF MEASURING TCP NETWORK ROUND TRIP TIME - Network round trip time is measured as an initial value at a start of a network communication flow. If sufficient data is available subsequently during a communication flow, subsequent network round trip time value determinations are made, without TCP stack overhead and time out values being included in the determined value. | 12-03-2009 |
20090296592 | METHOD AND APPARATUS OF MEASURING AND REPORTING DATA GAP FROM WITHIN AN ANALYSIS TOOL - Network data gap is determined and reported to enable a user to validate that all the traffic that was intended to be monitored is being monitored in monitoring and/or troubleshooting tools for observation of network traffic and network installation and maintenance. Span port oversubscription, incomplete span configuration, incorrectly placed network taps and monitoring device packet drop may thereby be detected and reported as data gap. | 12-03-2009 |
20090296593 | METHOD AND APPARATUS OF MEASURING AND REPORTING DATA GAP FROM WITHIN AN ANALYSIS TOOL - Network data gap is determined and reported to enable a user to validate that all the traffic that was intended to be monitored is being monitored in monitoring and/or troubleshooting tools for observation of network traffic and network installation and maintenance. Span port oversubscription, incomplete span configuration, incorrectly placed network taps and monitoring device packet drop may thereby be detected and reported as data gap. | 12-03-2009 |
20110103237 | METHOD AND APPARATUS FOR THE EFFICIENT INDEXING AND STORAGE OF NETWORK TRAFFIC - A network analyzer reads network packets and extracts characterizing attributes, grouping patents observed in a given amount of time on common attribute values. Grouped attributes are meta data, written to a database, while packets are written to files. | 05-05-2011 |
20110103238 | METHOD AND APPARATUS FOR THE EFFICIENT CORRELATION OF NETWORK TRAFFIC TO RELATED PACKETS - A network analyzer reads network packets and extracts characterizing attributes, grouping patents observed in a given amount of time on common attribute values. Grouped attributes are meta data, written to a database, while packets are written to files. Meta data is stored in the database including links to the physical packets related to the meta data, and a user interface enables query of the meta data and retrieval of related physical packets. | 05-05-2011 |
20110106936 | TRANSACTION STORAGE DETERMINATION VIA PATTERN MATCHING - A network analyzer, system and method determine whether or not network transaction data derived from network analysis should be stored, based on a configuration. Configuration strings (patterns) are entered via a configuration file, including specifying whether the string should be a prefix, suffix, other location or exist anyplace in the data. Storage enabling/disabling is provided for network transaction data. Configuration strings (patterns) can be specified for request/response summary/detail, and for specified parameters. | 05-05-2011 |
20110106937 | MIXED-MODE ANALYSIS - A network analyzer determines, analyzes, and displays in streaming and non-streaming modes to provide analysis of specific transactions in that make sense within a primarily streaming or asynchronous flow of data, providing useful and accurate measurements. | 05-05-2011 |
20120287793 | METHOD AND APPARATUS FOR DISTINGUISHING AND SAMPLING BI-DIRECTIONAL NETWORK TRAFFIC AT A CONVERSATION LEVEL - Network traffic is distinguished at a conversation level, providing sampling decision capability. A hash value is determined based on IP addresses and protocol type, giving unique identifiers for individual conversations. | 11-15-2012 |
20120287794 | METHOD AND APPARATUS TO ESTIMATE THE SENDER'S CONGESTION WINDOW THROUGHOUT THE LIFE OF A TCP FLOW (SOCKET CONNECTION) - Network monitoring method and apparatus estimates the congestion window throughout the life of a TCP flow (socket connection), providing information useful for network performance analysis and troubleshooting. | 11-15-2012 |
20120287814 | METHOD AND APPARATUS TO DETERMINE THE AMOUNT OF DATA OUTSTANDING THROUGHOUT THE LIFE OF A TCP FLOW (SOCKET CONNECTION) - Network monitoring method and apparatus determines the amount of data outstanding throughout the life of a TCP flow (socket connection). Observing network traffic, calculation of the outstanding data is made, providing information useful for network performance analysis and troubleshooting. | 11-15-2012 |
20120290264 | METHOD AND APPARATUS FOR DYNAMICALLY ADJUSTING DATA ACQUISITION RATE IN AN APM SYSTEM - Data acquisition rates are dynamically adjusted in an APM system, by monitoring data acquisition hardware and reducing the data acquisition rate when a determination is made that the data rate is too high for processing by an APM. | 11-15-2012 |
20120290709 | METHOD AND APPARATUS TO DETERMINE THE AMOUNT OF DELAY IN THE TRANSFER OF DATA ASSOCIATED WITH A TCP ZERO WINDOW EVENT OR SET OF TCP ZERO WINDOW EVENTS - Network monitoring method and apparatus determines the zero window event data transfer delay, reporting the amount of data transfer delay caused thereby. Non-data-transfer-delaying zero window events can be separated from those causing actual delay, allowing reporting of actual delay events separate from non-delay causing events. | 11-15-2012 |
20120290710 | METHOD AND APPARATUS FOR DYNAMICALLY ADJUSTING DATA STORAGE RATES IN AN APM SYSTEM - Data storage rates are dynamically adjusted in an APM system, by monitoring data storage elements and modulating the data storage when a determination is made that the storage buffer utilization is too high. | 11-15-2012 |
20120290711 | METHOD AND APPARATUS TO ESTIMATE APPLICATION AND NETWORK PERFORMANCE METRICS AND DISTRIBUTE THOSE METRICS ACROSS THE APPROPRIATE APPLICATIONS, SITES, SERVERS, ETC - A method and apparatus to estimate application and network performance metrics and distribute those metrics across the appropriate applications, sites, servers, and the like, performs shallow analysis on a majority of traffic and deep analysis on a sampled set of the traffic, and estimates network and application performance metrics for the non-deep analysis data, providing an overall estimate of metrics without requiring deep analysis of all traffic. | 11-15-2012 |
20120291115 | METHOD AND APPARATUS FOR DYNAMIC HOST OPERATING SYSTEM FIREWALL CONFIGURATION - A method and apparatus for dynamic host operating system firewall configuration provides plural monitoring processes to monitor the firewall configuration of a host operating system and guest operating systems. When any firewall configuration change is detected by a monitor in a monitored guest operating system, a appropriate corresponding firewall change is made by the monitor to the host operating system. | 11-15-2012 |
20120300628 | METHOD AND APPARATUS TO PASSIVELY DETERMINE THE STATE OF A FLOW INCLUDING DETERMINING FLOW STATE IN THE EVENT OF MISSING DATA ON ONE OR BOTH SIDES OF THE FLOW - A method and apparatus is disclosed herein for determining the state of a flow of packets in a network. In one embodiment, the method comprises: monitoring, using a monitoring device, a flow of packets that are part of a connection between two network devices in a network, where the monitoring device is located in the network at one side of the connection; and passively determining a state of the flow while monitoring the flow, including determining at least one state of the flow without receiving data in the flow of packets that specifies the flow is in the at least one state. | 11-29-2012 |
20140078911 | METHOD AND APPARATUS TO DETERMINE THE AMOUNT OF DELAY IN ROUND TRIP LATENCY FOR A CONNECTION WHERE THE TCP TRAFFIC DOES NOT CONTAIN MULTI-PACKET RESPONSES OR MAY NOT BE TRANSACTION ORIENTED TRAFFIC. - A network round trip time measurement apparatus and method employ request/response timing to determine network round trip time. An initial network round trip value is determined, and subsequent network round trip values are determined for possible better measurement values. Response send time and subsequent next request receipt times are employed to determine network round trip values, as well as response and ack packet times. | 03-20-2014 |
20140092756 | METHODS AND APPARATUSES TO PROVIDE TIME MARKERS FOR A PACKET STREAM - A time marker for a data packet stream is generated. The packets are grouped into a block based on the time marker. The block of data packets is stored in a memory. A block of the data packets can be terminated based on the time marker. A block header is generated for the block. Statistics associated with the packet stream is captured based on the time marker. | 04-03-2014 |
20140115145 | METHOD AND APPARATUS FOR DYNAMICALLY SCALING APPLICATION PERFOMANCE ANALYSIS COMPLETENESS BASED ON AVAILABLE SYSTEM RESOURCES - A method and apparatus is disclosed herein for dynamically scaling application performance analysis completeness based on available system resources. In one embodiment, the method comprises monitoring incoming network traffic and a rate at which the traffic is being analyzed and dynamically adjusting application performance analysis completeness, the analysis being performed on the observed network traffic. | 04-24-2014 |
20140198671 | METHOD AND APPARATUS TO DYNAMICALLY SAMPLE NRT USING A DOUBLE-ENDED QUEUE THAT ALLOWS FOR SEAMLESS TRANSITION FROM FULL NRT ANALYSIS TO SAMPLED NRT ANALYSIS - A network round trip time measurement apparatus and method employ an allocated storage in the form of a double ended queue, to store data received while awaiting a corresponding receipt of data to allow the network round trip time to be determined. When the allocated size of the storage is exceeded, storage stops until such time as data is received to allow network round trip time to be determined on at least some of the already stored data, whereupon storage can resume. This allows use in high and low volume traffic situations to automatically scale back the amount of data processed, so as to not overtax available resources. | 07-17-2014 |