Quality of Service Guarantees in Virtual Circuit Switched Networks
Quality of Service Guarantees in Virtual Circuit Switched Networks
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DOI：
10.1109/49.400660
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发表时间：
1995-08
期刊：
影响因子：
--
通讯作者：
R. Cruz
中科院分区：
文献类型：
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作者：
R. Cruz
我们回顾了最近的一些结果，在基于时隙的虚拟电路交换网络中提供确定性的服务质量保证的问题。服务曲线的概念用于部分地表征虚电路连接所接收的服务。我们发现，服务曲线提供了一个方便的框架来管理分配的性能保证。特别是，端到端的性能指标的界限，可以简单地获得服务曲线和突发性限制到达流量。服务曲线可以分配给连接，我们考虑调度算法，可以支持分配的服务曲线。这种方法提供了连接之间所需的隔离程度，以便支持性能保证，而不排除统计复用。最后，我们研究了在基于时隙的网络中执行突发性约束的问题。>
We review some recent results regarding the problem of providing deterministic quality of service guarantees in slot-based virtual circuit switched networks. The concept of a service curve is used to partially characterize the service that virtual circuit connections receive. We find that service curves provide a convenient framework for managing the allocation of performance guarantees. In particular, bounds on end-to-end performance measures can be simply obtained in terms of service curves and burstiness constraints on arriving traffic. Service curves can be allocated to the connections, and we consider scheduling algorithms that can support the allocated service curves. Such an approach provides the required degree of isolation between the connections in order to support performance guarantees, without precluding statistical multiplexing. Finally, we examine the problem of enforcing burstiness constraints in slot-based networks. >