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Differentiated Services (DiffServ) QoS architecture is scalable but inadequate to deal with network congestion and unable to provide fairness among its traffic aggregates. Recently, IETF has recommended additional functions including admission control and resource discovery to enhance the original DiffServ [1]. In this paper, we propose a comprehensive(More)
The Internet is composed of many separate administrative domains called autonomous systems (ASs). To enable the end-to-end quality of service (QoS) for Internet applications, the inter-autonomous system QoS routing plays an important role in advertising the available network resources between domains. In this paper, border gateway protocol (BGP) is extended(More)
This paper analyses the behaviour and evaluates the performance of a new QoS DiffServ model, called FICC-DiffServ, as implemented in [I]. The implementation proposed a comprehensive framework for DiffServ networks. In the model, the fair intelligent congestion control (FICC) algorithm is applied to provide fairness among traffic aggregates and control(More)
Using TIMSS 2003, a large-scale international achievement assessment database, this study aims to demonstrate (1) how to use SAS for managing, manipulating, and analyzing complex large-scale secondary data and (2) how to apply multilevel models through SAS PROC MIXED to build models that investigate correlates of math achievement in developed and developing(More)
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