SBIR Phase I: Software Defined Networking with Partially Ordered Multipath Routing

这个小型企业创新研究（SBIR）第一阶段项目的更广泛的影响/商业潜力将是一个新的网络架构，以改善互联网。它最初的无连接、分组交换架构与传统的电路交换模式不同，并存在重大风险。为了管理这些风险，最初的设计集中在一个带有智能端点的简单网络上。其结果是可扩展的，健壮的，并支持广泛的通信技术;然而，它在满足许多现代网络应用程序的性能，安全性和策略需求方面的能力有限。为了满足这些新应用的需求，需要过度配置和昂贵、复杂且脆弱的附加技术，这些解决方案可能无法扩展。该项目将提供一个增强的智能网络，该网络可扩展且强大，支持性能和策略控制，同时有效利用网络资源。这将改善下一代互联网应用。这个小企业创新研究（SBIR）第一阶段项目探讨了网络与约束的翻译。在此架构中，性能要求表示为性能约束，而安全性、多租户和流量区分的策略要求表示为应用程序所用资源的布尔约束。带约束的路由计算每个目的地的最佳路径集，提供网络支持的全方位性能和策略，允许流量通过满足应用需求的路径发送，并在网络上更均匀地分配负载（模拟显示容量增加10倍）。这种方法更健壮，因为它是作为路由功能的一部分实现的，直接响应网络变化，而且更高效，因为它运行在“本地互联网”上，消除了覆盖。最后，它通过实现默认拒绝通信模型提高了安全性，并且更容易基于其声明性的“what”配置模型进行配置。该项目的重点是表征和减轻该架构中剩余的风险，并通过开发操作概念验证来证明这种方法的可行性。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

The broader impact/commercial potential of this Small Business Innovation Research (SBIR) Phase I project will be a new network architecture to improve the internet. Its original connectionless, packet-switched architecture was a departure from the traditional circuit-switched model and involved significant risks. To manage these risks, the original design focused on a simple network with smart endpoints. The result was scalable, robust and supported a wide range of communications technologies; however, it is limited in its ability to meet the performance, security, and policy needs of many modern network applications. Overprovisioning and expensive, complex, and fragile add-on technology are required to meet the needs of these new applications and these solutions may not scale This project will provide an enhanced, smart network that is scalable and robust, supporting performance and policy control while making efficient use of network resources. This will improve the next generation of internet applications.This Small Business Innovation Research (SBIR) Phase I project explores the translation of networking with constraints. In this architecture, performance requirements are expressed as performance constraints, and policy requirements for security, multi-tenancy, and traffic differentiation as Boolean constraints on the resources used for an application. Routing with constraints computes the best set of paths per destination that provide the full range of performance and policies supported by the network, allowing traffic to be sent over paths that meet the needs of applications, and distributing the load more evenly over the network (simulations show a 10x increase in capacity). This approach is more robust because it is implemented as a part of the routing function, directly responding to network changes, and more efficient because it runs on the "native internet," eliminating overlays. Lastly, it improves security by implementing a default-deny communication model and is easier to configure based on its declarative, "what" configuration model. This project is focused on characterizing and mitigating risks remaining in this architecture and demonstrating the feasibility of this approach through the development of an operational proof-of-concept.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.