NeTS:Small:Design and Analysis of Survivable Multi-Domain Optical Networks

NeTS:Small:可生存多域光网络的设计与分析

• 批准号: 0916861
• 负责人: Jason Jue
• 金额: $ 40.18万
• 依托单位: University of Texas at Dallas
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2014-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0916861&HistoricalAwards=false
• 关键词: NeTS; Small; Design; Analysis; Survivable

This project investigates the static and dynamic partitioning of optical networks into domains or clusters and addresses the problem of providing survivable end-to-end service provisioning for unicast and multicast traffic over such multi-domain networks. A large optical network, even if administered by a single operator, needs to maintain its state information in a distributed and multi-domain hierarchy for purposes of scalability and fault-tolerance. Moreover, dynamic reconfiguration is often necessary to respond and adapt to sudden unexpected events or changes in network conditions. Other significant challenges in such a heterogeneous multi-domain environment are to implement end-to-end routing and survivability mechanisms, which are complicated by the limited amount of state information shared across domains due to factors related to business, policy, security, and other issues. This project enables a self-organizing framework for survivable optical networks. The project is addressing new methods for defining and reconfiguring domains based on service and performance requirements, introduces several new mechanisms for providing survivability in multi-domain networks, and is introducing new algorithms and protocols for provisioning survivable end-to-end unicast and multicast services in a scalable and cost-efficient manner. The broader impact of this work is that it can lead to a more robust and dynamic optical control layer that will enable the deployment of a greater range of end-to-end optical services to support emerging applications. It envisions greater intelligence in the control plane of optical transport networks, potentially leading to a network that is more autonomous than networks in existing ASON and GMPLS frameworks.

该项目研究了光网络在域或集群中的静态和动态划分，并解决了在这种多域网络上为单播和多播流量提供可生存的端到端服务供应的问题。大型光网络，即使由单个运营商管理，也需要在分布式和多域层次结构中维护其状态信息，以达到可伸缩性和容错的目的。此外，动态重新配置往往是必要的，以响应和适应突发的意外事件或网络条件的变化。在这种异构多域环境中，其他重要的挑战是实现端到端路由和生存机制，由于与业务、策略、安全性和其他问题相关的因素，跨域共享的状态信息数量有限，这使问题变得复杂。该项目为可生存的光网络提供了一个自组织框架。该项目正在解决基于服务和性能需求定义和重新配置域的新方法，引入几种在多域网络中提供生存能力的新机制，并引入新的算法和协议，以可扩展和经济高效的方式提供可生存的端到端单播和多播服务。这项工作的更广泛的影响是，它可以导致一个更强大和动态的光控制层，这将使部署更大范围的端到端光服务，以支持新兴应用。它设想在光传输网络的控制平面上有更大的智能，可能导致一个比现有ASON和GMPLS框架中的网络更自治的网络。