Design and Implementation of a Measurement-Based Policy-Driven Resource Management Framework For Converged Networks

This paper presents the design and implementation of a measurement-based QoS and resource management framework, CNQF (Converged Networks QoS Management Framework). CNQF is designed to provide unified, scalable QoS control and resource management through the use of a policy-based network management paradigm. It achieves this via distributed functional entities that are deployed to co-ordinate the resources of the transport network through centralized policy-driven decisions supported by measurement-based control architecture. We present the CNQF architecture, implementation of the prototype and validation of various inbuilt QoS control mechanisms using real traffic flows on a Linux-based experimental test bed.Comment: in Ictact Journal On Communication Technology: Special Issue On Next Generation Wireless Networks And Applications, June 2011, Volume 2, Issue 2, Issn: 2229-6948(Online

Rationale, Scenarios, and Profiles for the Application of the Internet Protocol Suite (IPS) in Space Operations

This greenbook captures some of the current, planned and possible future uses of the Internet Protocol (IP) as part of Space Operations. It attempts to describe how the Internet Protocol is used in specific scenarios. Of primary focus is low-earth-orbit space operations, which is referred to here as the design reference mission (DRM). This is because most of the program experience drawn upon derives from this type of mission. Application profiles are provided. This includes parameter settings programs have proposed for sending IP datagrams over CCSDS links, the minimal subsets and features of the IP protocol suite and applications expected for interoperability between projects, and the configuration, operations and maintenance of these IP functions. Of special interest is capturing the lessons learned from the Constellation Program in this area, since that program included a fairly ambitious use of the Internet Protocol

An entity access control model for network services management

The Network Services Management Framework tries to overcome the most important limitations of present network management frameworks, namely the most widely supported framework – the Internet Network Management Framework – by defining a management framework using a network services management distributed architecture that provides services management functions with any desired level of functionality. This document introduces one of the most important parts of this framework, the Entity Access Control Model and the mechanisms needed to its deployment: management entities and management domains, entity access and resources control management, and security mechanisms (authentication, data integrity verification, confidentiality and non-repudiation assurances). This model, although originally developed to be integrated on the Network Services Management Framework, can be completely integrated or partially adopted by other frameworks since it supports a wide range of conceptual and functional requisites recognised to be fundamental to the future of modern distributed network management frameworks

On the use of mobility in distributed network management

Information Technology has been under unprecedented transformations and it is dramatically changing the way of work inside organizations. Information management systems must be adequate to cope with the profound effects of this evolution, which expectations includes the introduction into the networks of enormous quantities of different elements. Mobile agent paradigm seems to be, for many researchers, the right solution to deal with the pressures of these new demands. This paper discuss the issues around mobility of code on network management environments and presents ongoing work that provides mobility capability to distributed managers upon recent work of IETF’s Disman working group

Tietoverkkojen valvonnan yhdenmukaistaminen

As the modern society is increasingly dependant on computer networks especially as the Internet of Things gaining popularity, a need to monitor computer networks along with associated devices increases. Additionally, the amount of cyber attacks is increasing and certain malware such as Mirai target especially network devices. In order to effectively monitor computer networks and devices, effective solutions are required for collecting and storing the information. This thesis designs and implements a novel network monitoring system. The presented system is capable of utilizing state-of-the-art network monitoring protocols and harmonizing the collected information using a common data model. This design allows effective queries and further processing on the collected information. The presented system is evaluated by comparing the system against the requirements imposed on the system, by assessing the amount of harmonized information using several protocols and by assessing the suitability of the chosen data model. Additionally, the protocol overheads of the used network monitoring protocols are evaluated. The presented system was found to fulfil the imposed requirements. Approximately 21% of the information provided by the chosen network monitoring protocols could be harmonized into the chosen data model format. The result is sufficient for effective querying and combining the information, as well as for processing the information further. The result can be improved by extending the data model and improving the information processing. Additionally, the chosen data model was shown to be suitable for the use case presented in this thesis.Yhteiskunnan ollessa jatkuvasti verkottuneempi erityisesti Esineiden Internetin kasvattaessa suosiotaan, tarve seurata sekä verkon että siihen liitettyjen laitteiden tilaa ja mahdollisia poikkeustilanteita kasvaa. Lisäksi tietoverkkohyökkäysten määrä on kasvamassa ja erinäiset haittaohjelmat kuten Mirai, ovat suunnattu erityisesti verkkolaitteita kohtaan. Jotta verkkoa ja sen laitteiden tilaa voidaan seurata, tarvitaan tehokkaita ratkaisuja tiedon keräämiseen sekä säilöntään. Tässä diplomityössä suunnitellaan ja toteutetaan verkonvalvontajärjestelmä, joka mahdollistaa moninaisten verkonvalvontaprotokollien hyödyntämisen tiedonkeräykseen. Lisäksi järjestelmä säilöö kerätyn tiedon käyttäen yhtenäistä tietomallia. Yhtenäisen tietomallin käyttö mahdollistaa tiedon tehokkaan jatkojalostamisen sekä haut tietosisältöihin. Diplomityössä esiteltävän järjestelmän ominaisuuksia arvioidaan tarkastelemalla, minkälaisia osuuksia eri verkonvalvontaprotokollien tarjoamasta informaatiosta voidaan yhdenmukaistaa tietomalliin, onko valittu tietomalli soveltuva verkonvalvontaan sekä varmistetaan esiteltävän järjestelmän täyttävän sille asetetut vaatimukset. Lisäksi työssä arvioidaan käytettävien verkonvalvontaprotokollien siirtämisen kiinteitä kustannuksia kuten otsakkeita. Työssä esitellyn järjestelmän todettiin täyttävän sille asetetut vaatimukset. Eri verkonvalvontaprotokollien tarjoamasta informaatiosta keskimäärin 21% voitiin harmonisoida tietomalliin. Saavutettu osuus on riittävä, jotta eri laitteista saatavaa informaatiota voidaan yhdistellä ja hakea tehokkaasti. Lukemaa voidaan jatkossa parantaa laajentamalla tietomallia sekä kehittämällä kerätyn informaation prosessointia. Lisäksi valittu tietomalli todettiin soveltuvaksi tämän diplomityön käyttötarkoitukseen

Results of the CEO Project - WWW Management

This report contains the result of a ‘proof of concept’ study that was performed by the CTIT of the University of Twente, together with ESYS Limited (Guildford, UK) for the Institute of Remote Sensing Applications of the Joint Research Centre (JRC) of the EC (Ispra, Italy). The study is part of the ‘Centre of Earth Observation’ (CEO) programme. The subject of the study was the design and implementation of tools that allow status and utilisation monitoring of networks and distributed information servers. In the specific case of the CEO programme, these information servers are accessible via the WWW and contain large amounts of earth observation data (e.g. satellite pictures). The work division within the project was that ESYS investigated the management applications, which had to run on top of HP-Openview, and the CTIT designed and implemented the management agents. These agents had to include the following Management Information Bases (MIBs): • A HTTP-MIB, with detailed information concerning the WWW document transfer protocol. • A Retrieval Service (RS) MIB, with high level information concerning the WWW document transfer service. • An Information Store (IS) MIB, with information concerning the WWW server and the documents provided by that server. The specifications of these MIBs were presented to the IETF and provided a good starting point for subsequent standardization activities. The agents were implemented as sub-agents of the EMANATE extensible agent package and are currently being tested in a number of field trials