Heinrich J. Stüttgen

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The Internet Engineering Task Force (IETF) is currently working on the development of Differentiated Services (DiffServ). DiffServ seems to be a promising technology for next-generation IP networks supporting Quality-of-Services (QoS). Emerging applications such as IP telephony and time-critical business applications can benefit significantly from the(More)
There are several possible approaches to support multicast communication within an ATM subnetwork. A simple one is ATM Forum’s LAN emulation, where a special server broadcasts all multicast packets to all nodes within a subnetwork. This paper compares two approaches published as IETF draft documents. These are the so-called multicast router approach where(More)
We evaluate the beaviour of a implementation of a Differentiated Services router based on a Linux PC. Our results show, that both per-hop-behaviours — expedited and assured forwarding — are able to provide a guaranteed bandwidth together with a very small delay and jitter even in a highly congested network.