Techniques for DiffServ-based QoS in hierarchically federated MAN networks - the GRNET case

Author

Varvitsiotis, Angelos P. ; Siris, Vasilios A. ; Primpas, Dimitris N. ; Fotiadis, Georgios I. ; Liakopoulos, Athanassios Ch ; Bouras, Christos J.

Author_Institution

Greek Res. & Technol. Network, Athens

fYear

2005

fDate

18-18 Sept. 2005

Lastpage

6

Abstract

DiffServ is the basis of contemporary QoS-enabled networks. Setting up DiffServ QoS requires extensive engineering effort in dimensioning and provisioning, especially for adjacent networks under different administrations linked in a "federated" hierarchy. In this paper we present a case study for QoS techniques employed in the GRNET MAN networks of Athens and Crete. After introducing the supported QoS mechanisms and service types, we discuss our dimensioning methodology and present two algorithms for worst-case dimensioning. We explain the provisioning mechanisms of GRNET and we present in brief our new automated provisioning ANS tool. Finally, we deal with the extension of our mechanisms and tools in hierarchically federated networks and give some future directions of our work

Keywords

DiffServ networks; metropolitan area networks; quality of service; DiffServ; GRNET; QoS; hierarchically federated MAN networks; Broadband communication; Computer aided software engineering; Computer science; Diffserv networks; Electronic mail; Intelligent networks; Protection; Switches; Telecommunication traffic; Traffic control; QoS dimensioning; federated QoS; provisioning;

fLanguage

English

Publisher

ieee

Conference_Titel

Local and Metropolitan Area Networks, 2005. LANMAN 2005. The 14th IEEE Workshop on

Conference_Location

Crete

Print_ISBN

0-7803-9565-4

Type

conf

DOI

10.1109/LANMAN.2005.1541519

Filename

1541519