Wyniki wyszukiwania - BazTech

1

The Realization of NGN Architecture for ASON/GMPLS Network

Karczmarek S., Młynarczuk M., Narloch M., Sac M.

Journal of Telecommunications and Information Technology

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2011

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nr 3

47-56

EN

For the last decades huge efforts of telecommunication, Internet and media organizations have been focusing on creating standards and implementing one common network delivering multimedia services - Next Generation Network. One of the technologies which are very likely to be used in NGN transport layer is ASON/GMPLS optical network. The implementation of ASON/GMPLS technology using open source software and its results are the subject of this paper. The ASON/GMPLS architecture and its relation to the proposed ITU-T NGN architecture are described. The concept, functional structure and communication among architecture elements as well as the implementation of laboratory testbed are presented. The results of functional tests confirming proper software and testbed operation are stated.

2

The IP QoS System

Burakowski W., Śliwiński J., Tarasiuk H., Bęben A., Niewiadomska-Szynkiewicz E., Pyda P., Mongay Batalla J.

Journal of Telecommunications and Information Technology

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2011

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nr 3

5-11

EN

This paper shortly describes the IP QoS System which offers strict quality of service (QoS) guarantees in IP-based networks and supports a number of, so called, classes of services. Such solution requires to implement in the network a set of QoS mechanisms and algorithm working on packet, connection request and provisioning levels. Furthermore, we require signaling system for informing the network about new connection request and network resource allocation capabilities for providing required resources to given connection. The IP QoS System is based on the next generation networks (NGN) and differentiated services (DiffServ) architectures and, at least for now, it is designed for single domain only.

3

Internet Przyszłości - nowa generacja sieci telekomunikacyjnych

Burakowski W.

Telekomunikacja i Techniki Informacyjne

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2009

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nr 3-4

117-126

PL

Obecna sieć internet opiera się na stosie protokołów TCP/IP oraz dwóch głównych założeniach: na oferowaniu jednej klasy usług (tj. usługi best effort) oraz przewymiarowaniu sieci. Te założenia projektowe w istotny sposób ograniczają obecnie rozwój sieci internet, uniemożliwiając oferowanie usług wymagających przekazu informacji w czasie rzeczywistym. W artykule przedstawiono wyniki dotychczasowych prac ukierunkowanych na wprowadzenie jakości przekazu pakietów w sieci internet oraz przyjęte na dzień dzisiejszy główne założenia budowy sieci, nazwanej Internet Przyszłości.

EN

Current Internet employs TCP/IP protocol stack and it works under two main principles: best effort class of service is the only one available in the network and network resources are over-dimensioned, if possible. However, the above assumptions limit further evolution of the Internet since such network is not able to assure packet transfer characteristics required by real-time applications. The paper summarizes the results of work aimed At improving quality of packet transfer in the IP-based networks and explains the fundamentals for Future Internet.