Real-time services in IP network architectures

Antonella Gilardi

doi:10.1117/12.261228

13 December 1996 Real-time services in IP network architectures

Antonella Gilardi

Proceedings Volume 2953, Broadband Strategies and Technologies for Wide Area and Local Access Networks; (1996) https://doi.org/10.1117/12.261228
Event: Advanced Imaging and Network Technologies, 1996, Berlin, Germany

Abstract

The worldwide internet system seems to be the success key for the provision of real time multimedia services to both residential and business users and someone says that in such a way broadband networks will have a reason to exist. This new class of applications that use multiple media (voice, video and data) impose constraints to the global network nowadays consisting of subnets with various data links. The attention will be focused on the interconnection of IP non ATM and ATM networks. IETF and ATM forum are currently involved in the developing specifications suited to adapt the connectionless IP protocol to the connection oriented ATM protocol. First of all the link between the ATM and the IP service model has to be set in order to match the QoS and traffic requirements defined in the relative environment. A further significant topic is represented by the mapping of IP resource reservation model onto the ATM signalling and in the end it is necessary to define how the routing works when there are QoS parameters associated. This paper, considering only unicast applications, will examine the above issues taking as a starting point the situation where an host launches as call set up request with the relevant QoS and traffic descriptor and at some point a router at the edge of the ATM network has to decide how forwarding and request in order to establish an end to end link with the right capabilities. The aim is to compare the proposals emerging from different standard bodies to point out convergency or incompatibility.

Citation Download Citation

Antonella Gilardi "Real-time services in IP network architectures", Proc. SPIE 2953, Broadband Strategies and Technologies for Wide Area and Local Access Networks, (13 December 1996); https://doi.org/10.1117/12.261228

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