ITC/USA 2006 Conference Proceedings / The Forty-Second Annual International Telemetering Conference and Technical Exhibition / October 23-26, 2006 / Town and Country Resort & Convention Center, San Diego, California / Traditionally, acquired instrumentation data on a non-destructive test article is recorded to a nonvolatile memory recorder. The data acquisition system usually samples and formats its inputs before transmitting the data to the recorder (also known in this paper as a data sink) via a PCM serial data stream (i.e., clock and data). In a network-based data acquisition architecture, the inclusion of an IP-based recorder adds a new dimension to the data acquisition process. Any IP network inherently allows for the bi-directional exchange of data. In this environment, the IPbased recorder can be treated as both a data sink for parameter recording and a data source for parameter extraction, data rate statistics, and recorder status reporting. The network model recasts the data recorder’s function as a file server to which multiple clients could be simultaneously requesting services. Those clients that represent the data acquisition nodes are requesting storage of their acquired parameters. Clients, such as transmitters or test engineers, are requesting access to archived data or status information for further processing. This paper presents the advantages of using an IP-based recorder in a network-based data acquisition system. The availability of an IP interface along with the intelligence built into the recorder expands its capabilities beyond that of a conventional PCM recorder. These capabilities include real-time health monitoring, support for the Simple Network Management Protocol (SNMP), data mining, reporting of real-time performance and network statistics.

ITC/USA 2006 Conference Proceedings / The Forty-Second Annual International Telemetering Conference and Technical Exhibition / October 23-26, 2006 / Town and Country Resort & Convention Center, San Diego, California / Airborne data acquisition systems have changed very little over the years. Their growth has primarily been in the area of digital filtering and the acquisition of new avionic busses. Communication between data acquisition units operating as a system still employs Time Division Multiplexing scheme. These schemes utilize command and data busses like CAIS and PCM. Although this approach is highly efficient, it has many drawbacks. These drawbacks have resulted in rigid system architecture, system bandwidth limitations, highly specialized recorders to acquire unique avionic busses that would otherwise overwhelm the system bandwidth, and unidirectional flow of data and control. This paper describes a network centric data acquisition system that is Ethernet based. Although Ethernet is known as an asynchronous bus, the paper will describe a deterministic time distribution over the bus per IEEE-1588 that allows the use of a packet network for airborne data acquisition. The acquisition unit within the network system is defined by its MIB (Management Information Base) and operates as a data source unit. Other network components may operate as a data sink unit, such as recorders, or as a data source and sink. The role of different units in the network system will be evaluated. The paper will also describe network gateways that allow the use of traditional PCM systems with a network-based system.

ITC/USA 2008 Conference Proceedings / The Forty-Fourth Annual International Telemetering Conference and Technical Exhibition / October 27-30, 2008 / Town and Country Resort & Convention Center, San Diego, California / The Integrated Network Enhanced Telemetry (iNET) Project established a standards working group to address the integrated management of telemetry network systems and to ensure interoperability among various pieces of equipment. The group has been studying the benefits and drawbacks of various system management technologies with the goal of identifying a set of management interfaces which will provide long-range benefit to a large and diverse telemetry test system. This paper discusses control, configuration, status, performance, and fault management. It addresses these from several viewpoints such as multi-test articles, multi-ranges, and dynamic test environments.

ITC/USA 2007 Conference Proceedings / The Forty-Third Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2007 / Riviera Hotel & Convention Center, Las Vegas, Nevada / The development of network-based data acquisition systems has resulted in a new architecture for supporting flight instrumentation that has the potential to revolutionize the way we test our aircraft. However, the inherent capability and flexibility in a networked test architecture can only be realized by the flight engineer if a sufficiently powerful toolset is available that can configure and manage the system. This paper introduces the concept of an instrumentation configuration and management system (ICMS) that acts as the central resource for configuring, controlling, and monitoring the instrumentation network. Typically, the ICMS supports a graphical user interface into the workings of the instrumentation network, providing the user with a friendly and efficient way to verify the operation of the system. Statistics being gathered at different peripherals within the network would be collected by this tool and formatted for interpretation by the user. Any error conditions or out-of-bounds situations would be detected by the ICMS and signaled to the user. Changes made to the operation of any of the peripherals in the network (if permitted) would be managed by the ICMS to ensure consistency of the system. Furthermore, the ICMS could guarantee that the appropriate procedures were being followed and that the operator had the required privileges needed to make any changes. This paper describes the high-level design of a modular and multi-platform ICMS and its use within the measurement-centric aircraft instrumentation network architecture under development by the Network Products Division at Teletronics.

ITC/USA 2011 Conference Proceedings / The Forty-Seventh Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2011 / Bally's Las Vegas, Las Vegas, Nevada / The integrated Network Enhanced Telemetry (iNET) program has developed standards for network-based telemetry systems, which implementers and range users of Telemetry Network System (TmNS) equipment can use to promote interoperability between components. While standards promote interoperability, only implementation of the standards can ensure it. This paper discusses the tools that are being developed by the iNET program which implement the technologies and protocols specified in the iNET standards in order to ensure interoperability between TmNS components and provide a general framework for device development. Capabilities provided by the tools include system management, TmNS message processing, metadata processing, and time synchronization.

Syftet med detta arbete är att undersöka huruvida ett nätverksprotokoll som används för nätverkshantering- och övervakning kan användas inom IT-forensiska undersökningar. Arbetet börjar med en generell granskning av protokollet SimpleNetwork Management Protocol (SNMP) och dess funktioner för att skapa en grundläggande förståelse för protokollet. Ett problemscenario framställs för att kunna simuleras i arbetets experimentutförande. I arbetet diskuteras hur funktionernas användbarhet inom IT-forensik kan variera beroende på till exempel inom vilken sektor de IT-forensiska utredningarna utförs inom, den privata eller den offentliga. Resultatet i detta arbete pekar på att SNMP är användbart vid IT-forensiska undersökningar, men att protokollet är mer gynnsamt för den privata sektorn av IT-forensik.

Tese de mestrado integrado. Engenharia Electrotécnica e de Computadores-Major de Telecomunicações. Faculdade de Engenharia. Universidade do Porto. 2008

Det globala konsultföretaget CGI är leverantör för Sametingets nätverk. Behovet av en förbättrad övervakning på Sametingets nätverk efterfrågades av CGI. Genom att förnya och förbättra övervakningen säkerställs en snabbare felsökning och en högre tillgänglighet. Plattformen som skulle användas för att förverkliga målet heter CA Unified Infrastructure Management (CA UIM).   Eftersom slutprodukten skulle övervaka en skarp miljö så började arbetet med att upprätta en testmiljö där experiment kunde utföras. En liten del av arbetet bestod av att kartlägga det nätverk som skulle övervakas. Det huvudsakliga arbetet gick ut på att lära känna programvaran. UIM bygger på att prober utför insamling av data som sedan transporteras vidare till en gemensam databas för den specifika domänen. Databasen kan i sin tur leverera data till exempelvis dashboards på front-end sidan.  Följande prober har använts i vårt arbete: Net_Connect – Använder ICMP för att bekräfta en enhets tillgänglighet. Interface_Traffic - Övervakar nätverkstrafiken med SNMP-agenter. CDM - Ansvar för övervakningen av CPU, disk och minnesutnyttjande på servrar.   Efter att designen av våra dashboards var färdigställda och övervakningen fungerade så gick vi över till den skarpa miljön och upprättade samma koncept där. Arbetet presenteras sedan för CGI i Kiruna med positiva reaktioner.

This thesis describe two graphical modeling languages that can be used for specifying the access control setup in most systems that store information in a tree based structure. The Tree-based Access control Modeling Language (TACOMA) is the simplest language that is defined. It is easy to learn and use as it has only 8 symbols and two relations. With this language it is possible to define the exact access control rules for users using a graphical notation. The simplicity of the language do however come at a cost: it is best suited for small or medium sized tasks where the number of users and objects being controlled are limited. To solve the scalability problem a second language is also presented. The Policy Tree-based Access control Modeling Language (PTACOMA) is a policy based version of TACOMA that doubles the number of symbols and relations. While it is harder to learn it scales better to larger tasks. It also allows for distributed specification of access rules where administrators of different domains can be responsible for specifying their own access control rules. Domains can be organized in a hierarchical manner so that administrators on a higher level can create policies that have higher priority and therefor limits what administrators at lower levels can do. The thesis describes the two languages in detail and provides a comparison between them to show the strong and weak points of each language. There is also a detailed case study that shows how the two languages can be used for specifying access control in SNMPv3.

<p>This Master's Thesis describes the design and development of an architecture for automated network node discovery and topology analysis, implemented as an extension to the network management and provisioning system NETadmin. The architecture includes functionality for flexible network model assessment, using a method for versatile comparison between off-line database models and real-world models. These models are populated by current node data collected by network sensors.</p><p>The presented architecture supports (1) efficient creation and synchronization of network topology information (2) accurate recognition of new, replaced and upgraded nodes, including rogue nodes that may exhibit malicious behavior, and (3) provides an extension of an existing vendor-neutral enterprise network management and provisioning system.</p><p>An evaluation of the implementation shows evidence of accurate discovery and classification of unmatched hosts in a live customer production network with over 400 nodes, and presents data on performance and scalability levels.</p><p>The work was carried out at Netadmin System i Sverige AB, in Linköping, Sweden.</p>