93 results about "Network performance analysis" patented technology

The present invention is a computer system and a method for gathering, processing and analysis of network information resulting in presentation and visualization of packet networks in the form of individual virtual flows, sometimes also called connections or sessions, containing their statistical characteristics in a time-sampled dynamics. The system, deployed as a separate device or co-hosted with other network devices, collects and processes information from all valid packets in network, classifies and maps gathered statistics to the statistics of relevant virtual flows. The statistical information is further processed by the system to provide near-real presentation, as well as stored in a searchable database for future analyses. The invention to be used by network engineers and administrators as a tool for a near real-time control of network traffic, as an analytical tool for solving network bottlenecks, network performance optimization and troubleshooting analyses, cutting costs by optimizing network layout, appropriate organization of traffic and intelligent configuration of QoS, routers and other network devices.

A network monitoring and analysis system is configured to conduct performance analysis on a network using a plurality of endpoint devices. Locations of respective endpoint devices for use in the performance analysis of the network are determined utilizing an algorithm which characterizes the network as a graph having edges and vertices and associates endpoint devices with particular ones of the vertices in an iterative manner based on impact of said vertices on achievement of a specified coverage criterion. The coverage criterion may comprise a links-covered criterion which specifies a percentage of a total number of links of the network that are covered by test communications. As another example, the coverage criterion may comprise a links-estimable criterion which specifies a percentage of a total number of links of the network for which performance is estimable from collected end-to-end path measurement data.

A method for testing of a communication network, using a plurality of traffic agents coupled to communicate via the network. The method includes transmitting a sequence of data packets via the network from a first one of the traffic agents to a second one of the traffic agents and recording arrival characteristics of the packets in the sequence, responsive to receiving the packets at the second traffic agent. The arrival characteristics of different packets in the sequence are compared so as to determine a measure of variability in transmission of the packets via the network.

The invention provides a network performance analysis and fault diagnosis method of a distributed system. The method includes the following steps that monitoring service is deployed to the monitored distributed system; management service runs according to characteristics of the distributed system; network topology discovery is carried out; a monitored node set of monitored nodes is determined; the management service collects and analyzes state information of the nodes; the network performance is detected; the network state is analyzed, and possible faults are determined. The states of all network equipment and links participating in a communication path and communication performance between the nodes are taken into consideration, the specific position of fault points can be analyzed and determined according to the network topology information, the fault detection accuracy is improved, and fault detection expenses are reduced. Meanwhile, according to analysis of the performance of the distributed system, the method can provide the actual performance between the nodes of the distributed system instead of the theoretical performance of the network system, and the performance estimation accuracy can be improved.

This invention relates to an analysis and report system and a realization method based on IPv6 netwrok performance, which can catch data flows on real time in the monitored IPv6/v4 network, analyze them quickly, put the result in database, monitor rapid changes of IPv6/v4 data flow and service request, discover latent flow attacks and draft related alarm statragy, at the same time, the network manager can understand the distribution situation of the current network domain to judge the possible reason for the fault and expel it at once.

The invention provides a GSM-R (global system for mobile communications for railway) network interface monitoring system. The system is characterized by comprising an Abis interface monitoring subsystem, an interface-A monitoring subsystem, a PRI (primary rate interface) monitoring subsystem, a comprehensive analysis subsystem and a database, wherein the Abis interface monitoring subsystem is used for collecting, analyzing and processing the network signaling of an Abis interface, the interface-A monitoring subsystem is used for collecting, analyzing and processing the network signaling of an interface A, the PRI monitoring subsystem is used for collecting, analyzing and processing the user data and network signaling of a PRI interface, the comprehensive analysis subsystem is used for performing correlation analysis on the data analyzed and processed by the Abis interface monitoring subsystem, the interface-A monitoring subsystem and the PRI interface monitoring subsystem so as to carry out statistic analysis and fault discrimination on the quality of train control service carried by a GSM-R, and the database is used for storing the processed user data and network signaling. The GSM-R network interface monitoring system can be used for realizing effective and reliable multifunctional application maintenance, such as user tracking, fault location, network performance analysis and the like.

Network analysis in a network management system for a data network is improved by mapping the communication paths established in the network. Queries are sent by the network management system to each network element in the network. Queries are triggered by events within the network, for example, after notification by a network element that a communication path is being set up. Each query sent by the network management system requests certain connection and topology information from the network elements. Using this information, the network management system constructs the overall network topology and performs a path analysis to map completely each communication path through the network. When the communication path mapping is complete, various types of analyses are performed using the communication path information. These analyses include but are not limited to network capacity analysis, network performance analysis, and network fault analysis. Through the use of a network analysis engine module communicating with the network elements, the present network management system can interpret multiple networking protocols and different routing protocols.

Techniques for representing data network performance characteristics from many different sources shows in three-dimensions client stations representations, server station(s) representations, and various forms of data transmission representations a video animation subsystem. Operational characteristics representations associate with the client stations, server system, data transmission representations forming a dynamic, three-dimensional representation of the network for displaying operational characteristics of the client stations, server system(s), and data transmission. The dynamic, three-dimensional representation of the network interfaces with a network performance analysis system for further analyzing perceived operational characteristics with reference to a plurality of network performance metrics from the network performance analysis system.

The invention discloses a method for acquiring network data and analyzing network performance for a digital substation, which comprises the following steps: acquiring station control layer network messages and process layer network messages of the digital substation by forcibly setting a network card working mode and adopting the network sniffing technology, carrying out statistical analysis on communication network messages, and then, evaluating the network performance. The invention does not need to change the original network topologic structure of the digital substation and finishes the capture of station control layer network data and process layer network data under the condition that the normal operation of the substation is not influenced, thereby realizing the purposes of testing and evaluating the communication network performance and realizing the high degree of integration between the communication network and the digital substation. The method of the invention is suitable for acquiring network data and analyzing network performance for a digital substation of an electric power system.

A system for facilitating network performance analysis. In an illustrative embodiment, the system includes a first module capable of quantifying network performance associated with a first portion of the network and providing a signal in response thereto. A second module is capable of ascertaining performance degradations in a communications link traversing plural portions of the network that are attributable to the first portion based on the signal. In a more specific embodiment, the second module further includes a third module adapted to ascertain degradations in network performance associated with a second portion of the network based on the signal and based on a performance parameter associated with both the first portion and the second portion of the network. In this embodiment, the first portion includes a wireless portion, and the second portion includes a wired portion. The performance parameter incorporates a Frame Loss Vector (FLV) associated with a communications link that traverses the wireless and wired portions of the network.

The invention discloses a method and a system for communication network performance analyzing. The method comprises the following steps: call record information of a user is acquired from a local base station controller; an air interface signaling in which an abnormal event occurs to the user in the process of interaction between the user and the base station controller is screened from the call record information; equipment alarm information is acquired from a local network management platform; the communication failure cause for the abnormal event occurring to the user is analyzed according to the air interface signaling and the equipment alarm information; and a local network performance analysis result is obtained. According to the method and the system for communication network performance analyzing, original base station controller air interface side data is extracted from the base station controller, analysis is performed with larger data volume and more complete data information, and the network performance of a communication network can be reflected more fully and more accurately.

The invention discloses a data acquisition method based on metadata. The multi-point acquisition of network traffic is performed by adopting a set of equipment instead of a distributed acquisition system, and thus the end-to-end network performance is tracked and compared; the ability to distinguish the traffic from different ports is added to TCP/IP protocol analysis, and thus a high-performance intelligent analysis acquisitor is used to replace multiple sets of low-speed acquisition equipment. The method comprises the following steps: firstly, making different two-layer labels for the traffic of each physical port, and then adopting the labels to distinguish the traffic from the different ports in layer-by-layer analysis; and storing analysis results to a big data analysis platform in the form of metadata, and adopting a big data analysis technology to solve the problem that the same flow also can be compared and identified after being modified in data transmission. According to a single-point acquisition and big data analysis method based on the metadata, the problem that the same TCP/UDP logic flow is divided into a plurality of physical TCP flows and is difficult to track and compare in network performance analysis can be solved.

The invention discloses a statistical method and device of connecting affair, node receives the IDT message of UE via wireless connection, and based on IDNNS parameter taken by IDT message, it executes NNSF function, ensures CN node which serves for UE; the IDT message is sent to ensured CN node, based on different route parameter taken by IDNNS parameter and concrete mode, it is recorded to corresponding affair; statistic of the same affairs. The invention provides integral Iu-Flex network connection performance KPI index statistic, merchant can obtain network performance analysis which can fulfill request based on those KPI indexes.

The invention discloses a monitoring method of an electric power monitoring system based on an optical distribution network. The method comprises the following steps: S1: a network management device monitors and manages an iODF device in real time; S2: a mobile intelligent management terminal iField ensures that port information data can be uploadd to the network management device in real time; and S3: in an operation and maintenance process, an optical fiber diagnosis device analyzes the performance of the optical distribution network to diagnose and position a fault of an optical fiber, judge the fault type and confirm the position of a fault point. The monitoring method can be used for realizing end-to-end visual management of optical fiber resources, quick service release and accurate fault positioning.

The invention relates to a grey correlation and fuzzy evaluation method and system for multipath transmission network performance. The method comprises the following steps: acquiring multi-path transmission network information to be evaluated; wherein the multi-path transmission network information comprises network quantity information and network evaluation index information; calculating a membership vector value of each evaluation comment corresponding to each network in the multipath network according to the network quantity information, the network evaluation index information and a pre-established network performance evaluation model; wherein the pre-established network performance model is established by analyzing the established multi-path transmission network by adopting a grey correlation analysis method and a fuzzy comprehensive analysis method, and is used for recording a relationship between network evaluation indexes and membership vectors of evaluation comments; selecting an evaluation comment corresponding to the maximum membership vector value as a final evaluation result of each network; and determining the performance of each network in the multipath network according to the final evaluation result. According to the network performance analysis method, the evaluation accuracy can be greatly improved.

The invention discloses a network analog simulation system for a large-scale integrated data network based on NS-3. The network analog simulation system is characterized by comprising three subsystems: a visualization system (1), an analog simulation system (2) and a network operation analysis system (3). A framework used by the network analog simulation system compensates and perfects the defect of an existing NS-3 function module; 22 function modules systematically built based on an NS-3 platform and a parallel module provide an omnibearing function support for the simulation of the integrated data network. According to the network analog simulation system, technologies of route analysis, flow analysis, data network element analysis and the like can be integrated based on overall operating status data of the integrated data network; through the realization of the framework, a simulation platform for rapid fault location and diagnosis and network performance analysis can be provided at high efficiency and high precision.

The present invention relates to a method for communication network parameter setting comprising the steps of a) acquiring and storing information related to a1) service requests issued by terminals attached to said network, a2) positions of said terminals, and a3) establishment of the requested service for said terminals, b) matching, based on the position information, said information to a grid of unit areas, the grid of unit areas representing a geographical region in which said network is operated, c) processing said information per unit area, d) outputting said processed information and e) modifying communication network operating parameters based on said outputted processed information.

The invention relates to a GSM-R network performance analysis system based on multi-data fusion. The system comprises an interface adaptation layer, a feature extraction layer, a data storage layer and a data analysis layer; and the interface adaptation layer comprises a TCP interface, a UDP interface, an SNMP interface and a file import interface, the feature extraction layer comprises a BSC loadmodule, a network abnormality module and a channel occupation module, and the data storage layer comprises multiple storage nodes which are backed up in real time by adopting a RAID mode. According to the GSM-R network performance analysis system based on multi-data fusion, multiple data can be acquired by adopting the unified interface adaptation layer, and comprehensive tracking, trend analysis, fault positioning and risk early warning on GSM-R network performances are achieved.

The invention comprises a method and apparatus for analyzing a network. Specifically, the method comprises receiving information associated with the network, automatically constructing a network representation using the information, and performing at least one network performance test, wherein the at least one network performance test is performed using at least a portion of the network representation.