Guaranteeing real-time traffic through an ATM network

被引:0
|
作者
Hansson, H [1 ]
Sjodin, M [1 ]
Tindell, K [1 ]
机构
[1] Univ Uppsala, Dept Comp Syst, S-75105 Uppsala, Sweden
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D O I
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中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
We present a method for providing hard real-time guarantees for traffic through an Asynchronous Transfer Mode (ATM) network. Guaranteed delivery also implies that we have to guarantee that no cells are lost due to over-full buffers in the network. By using priority queues in the output buffers we allow urgent messages short end-to-end delays, while stilt guaranteeing end-to-end delays for low-priority messages. We can determine a priori if message deadlines will be met by calculating maximum end-to-end delays and buffer-needs. Analysis is based on CPU schedulability analysis, which means that it: provides a framework for analysing an entire system, including both CPU and network scheduling.
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页码:44 / 53
页数:10
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