Possibilities for QoS in existing Internet Routing Protocols
نویسنده
چکیده
In classical circuit switching networks Quality of Service is an essential aspect which in uence the entire network design process, including routing consideration. Due to the e orts to introduce Quality of Service (QoS) into IP-based networks, design routing to support QoS becomes increasingly important, e.g. in such concepts like integrated service and di erentiated service IP networks. In this we give an overview of the possibility to introduce QoS in existing routing schemes and give an outlook to new QoS routing protocols currently discussed in the internet community such as the IETF. First of all we give a survey of di erent routing algorithms used in unicast Interior Gateway Protocols and Exterior Gateway Protocols. We describe in detail (E)IGRP a proprietary CISCO routing protocol, followed by a short overview of the di erent aspects for QoS routing protocols in the Internet.
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