CAREER: Analysis and Design of Hierarchical Source Routing & Embedded ATM Networks

本研究针对综合高速通信网络设计与管理中的两个相关问题进行了研究。第一个问题是分析和开发支持和操作分层源路由算法所需的工具，这些算法目前正在考虑用于专用和未来的公共ATM网络。这种路由方法旨在通过引入分层结构来简化大规模网络的操作，并尝试在传输连接请求之前通过源路由来确保服务质量(Qos)。使用随机建模和优化技术的组合，主要调查者将研究各种方法来估计和定期公告可用容量，以及分层聚集状态信息。要研究的第二个问题涉及ATM主干上面向性能的嵌入式(虚拟)网络的设计。对于特定类型的服务，如互动视频，PI将探索各种架构和互补性管理方案，以满足总体性能要求并最大限度地提高吞吐量/收入。这项工作将扩展到需要不同资源捆绑的服务，如在线服务、分布式计算和数据库应用程序，这些应用程序需要一致的高性能，并有理由使用专用虚拟网络。

This research addresses two related problems in the design and management in integrated high-speed communication networks. The first problem is to analyze and develop the tools required to support and operate hierarchical source routing algorithms currently under consideration for private and future public ATM networks. This approach to routing aims to simplify the operation of large-scale networks by introducing hierarchical structure and attempts to ensure Quality of Service (QoS), prior to transmitting connection requests, via source routing. Using a combination of stochastic modeling and optimization techniques the principle investigator will study various approaches to estimating, and periodically advertising available capacity, as well as to hierarchically aggregating state information. The second problem to be investigated concerns the design of performance oriented embedded (virtual) networks on an ATM backbone. For specific types of services, such as interactive video, the PI will explore various architectures and complementary management schemes which meet overall performance requirements and maximize throughput/revenue. This work will be extended to address, services requiring heterogeneous resource bundles such as on-line services, distributed computing, and database applications requiring consistent high-levels of performance and for which the use of a dedicated virtual network is justified.