CAREER: The Dynamics of Network Processing

计算机网络，尤其是互联网，正面临着缺乏安全性、服务质量和可管理性的问题。导致这种情况的一个关键问题是路由器数据路径中数据包处理的灵活性有限。使用嵌入式网络处理器的新型边缘路由器可以被编程和动态重新编程，以进行定制的分组处理，以适应不断变化的要求并提供一系列高级网络服务。这个项目的目标是探索网络处理的动态方面，有三个目标。首先，该项目将专注于网络处理器运行时环境的开发和原型制作，该环境支持几个网络处理应用程序，并允许动态重新配置工作负载。其次，研究将包括对分组处理延迟进行建模，并探讨其对网络的影响。网络模型和仿真需要考虑处理时延的影响，才能准确反映现代网络的现实。最后，该项目还将包括为网络处理的访问和控制开发网络服务协议。控制协议允许终端系统识别对数据流执行的处理，并控制该功能以限制由于网络处理功能而导致的系统复杂性的增加。这个项目提出了一种新的方法来为网络处理系统提供动态支持，了解其对网络的影响，并提供一个接口来公开和控制其功能。这项工作的结果将在原型系统上实现，并将提供给其他研究人员

Computer networks and particularly the Internet are suffering from the lack of security, quality of service, and manageability. A key issue that leads to this situation is the limited flexibility of packet processing in the data path of routers. Novel edge routers that use embedded network processors can be programmed and dynamically reprogrammed for custom packet processing to adapt to changing requirements and to provide a range of advanced network services. The goal of this project is to explore the dynamic aspects of network processing with three objectives. First, the project will focus on development and prototyping of a run-time environment for network processors that supports several network processing applications and allows dynamic reconfiguration of the workload. Second, the research will include modeling of packet processing delay and exploring its impact on networking. Network models and simulation need to consider the impact of processing delay in order to accurately reflect the reality of modern networks. Finally, the project will also include the development of a network service protocol for access and control of network processing. The control protocol allows end-systems to identify the processing that is performed on a data stream and to control this functionality to limit the increase in system complexity due to network processing functions. This project presents a novel approach to providing dynamic support for network processing systems, understanding its impact on the network, and providing an interface to expose and control its functionality. The results from this work will be implemented on a prototype system and will be made available to other researchers