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Proceedings Paper

IP access networks with QoS support
Author(s): Susana Sargento; Rui Jorge Morais Tomaz Valadas; Jorge Goncalves; Henrique Sousa
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Paper Abstract

The increasing demand of new services and applications is pushing for drastic changes on the design of access networks targeted mainly for residential and SOHO users. Future access networks will provide full service integration (including multimedia), resource sharing at the packet level and QoS support. It is expected that using IP as the base technology, the ideal plug-and-play scenario, where the management actions of the access network operator are kept to a minimum, will be achieved easily. This paper proposes an architecture for access networks based on layer 2 or layer 3 multiplexers that allows a number of simplifications in the network elements and protocols (e.g. in the routing and addressing functions). We discuss two possible steps in the evolution of access networks towards a more efficient support of IP based services. The first one still provides no QoS support and was designed with the goal of reusing as much as possible current technologies; it is based on tunneling to transport PPP sessions. The second one introduces QoS support through the use of emerging technologies and protocols. We illustrate the different phases of a multimedia Internet access session, when using SIP for session initiation, COPS for the management of QoS policies including the AAA functions and RSVP for resource reservation.

Paper Details

Date Published: 26 July 2001
PDF: 11 pages
Proc. SPIE 4527, Technologies, Protocols, and Services for Next-Generation Internet, (26 July 2001); doi: 10.1117/12.434422
Show Author Affiliations
Susana Sargento, Univ. de Aveiro (Portugal)
Rui Jorge Morais Tomaz Valadas, Univ. de Aveiro (Portugal)
Jorge Goncalves, Portugal Telecom Innovacao (Portugal)
Henrique Sousa, Univ. de Aveiro (Portugal)


Published in SPIE Proceedings Vol. 4527:
Technologies, Protocols, and Services for Next-Generation Internet
Anura P. Jayasumana; V. Chandrasekar, Editor(s)

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