A Systematic Approach to the Design of Cost-Effective, High Performance Switching Architectures

该提案旨在通过开发和使用虚拟电路交换机的仿真和实现建模环境来回答涉及通信系统的一组关键问题。第一个问题涉及系统的、标准化的业绩比较。使用相关流量模型和来自实际应用程序的跟踪数据，该研究正在标准化性能测量，消除了在考虑不同研究小组的性能结果时产生的苹果与橙子之间的比较。第二个问题涉及成本和实施建模。这项工作是将系统架构的设计和实现融为一体。重点放在电子实现和多芯片组件封装技术上。第三个问题涉及架构在提供服务质量保证方面的作用。通常将交换机抽象为队列，隐藏了太多与穿越交换机时的流量行为相关的内部架构细节。这项工作的特点是不同的交换体系结构对业务的影响，并开发交换机制以与其他机制协同工作，提供服务质量保证。该项目的教学部分是使用模拟和实施建模环境作为高速交换网络研究生课程的关键组件。此外，该研究的部分内容出现在两门本科课程中，一门是关于VLSI设计的，另一门是关于建模的。其他教育努力包括重要的指导活动和教学的持续改进。

This proposal aims to answer a set of critical questions dealing with communication systems by way of the development and use of a simulation and implementation modeling environment for virtual circuit switches. The first question concerns systematic, standardized performance comparisons. Using relevant traffic models and trace data from actual applications, this study is standardizing performance measurements, eliminating the apples-to- oranges comparisons that result when considering performance results from different research groups. The second question concerns cost and implementation modeling. This work is integrating the design of system architecture and implementation. The particular focus is on electronic implementation and multichip module packaging technology. The third question concerns the role of architecture in providing quality of service guarantees. The usual abstraction of the switch as a queue hides too much detail about internal architecture that is relevant to traffic behavior when traversing a switch. This work is characterizing the effect on traffic of different switch architectures, and developing switch mechalisms to work in concert with other mechanisms in providing quality of service guarantees. The educational part of the project is using the simulation and implementation modeling environment as a key component of a graduate course in High Speed Switching Networks. In addition, portions of the research amp appear in two undergraduate courses, one on VLSI Design and the other on Modeling. Other education efforts include significant mentoring activity and ongoing improvement in teaching.