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.

本项目研究光网络的静态和动态划分为域或集群，并解决了在这样的多域网络上的单播和组播流量提供可生存的端到端服务的问题。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，以实现可扩展性和容错性。此外，动态重新配置通常是必要的，以响应和适应突然的意外事件或网络条件的变化。在这样的异构多域环境中的其他重大挑战是实现端到端路由和生存性机制，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量有限，这使得端到端路由和生存性机制复杂化。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要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性的新机制，并引入新的算法和协议，以可扩展和具有成本效益的方式提供可生存的端到端单播和组播服务。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，这将使部署更广泛的端到端的光服务，以支持新兴的应用。它设想在光传送网络的控制平面中实现更大的智能，从而可能导致比现有ASON和GMPLS框架中的网络更具自治性的网络。