Sampo Saaristo

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This paper provides an overview of an implementation of Differentiated Services interior and boundary nodes as described in the SIMA model. The operation of the network nodes was verified with a series of measurements in a simple networking environment. These measurements also give some idea about the level of Quality of Service this kind of mechanism is(More)
This paper presents results from performance measurements carried out in a Differentiated Services WAN connecting three major cities in Southern Finland. The target of the measurements was to collect precise information about the level of service, experienced by a user transmitting files with FTP in a network that implements service differentiation by using(More)
When implementing networks with QoS guarantees, precise measurement of network QoS characteristics is needed. Primary characteristics of this class are packet loss, throughput, delay, delay variation as well as distribution of delay and delay variation. Commercial network analyzers are often very expensive, do not include provisions for precise time(More)
MPOA is a solution for routed networks to benefit more from the underlying ATM network and its QoS properties. MPOA offers more scalability, performance and lower latency than it is possible get from a router based network. MPOA builds on many existing protocols and combines them to a scalable layer 3 switched routing solution. In this paper the performance(More)
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