NRT: Unified Networking Research Testbed for the Next Generation Optical Internet

该项目探索了一种具有光标签交换(OLS)技术的两层信令方法，该方法提供了以下所需的特性：(A)适应任何协议/格式的信号；(B)实现传输高突发速率分组的超低延迟；(C)不需要网络或分组同步；(D)与电路交换和分组交换业务互操作；以及(E)自动检测和恢复网络故障。该项目的重点不是原型和试验台的创建，而是新的光网络技术的设计、仿真和分析。特别是，该项目研究了将智能整合到光纤节点和管理系统中的新方法，以使网络更具弹性、更强大和更高效。本课题的任务和子任务如下：任务1.下一代网络(NGN)体系结构和协议研究模拟和设计MPLS光恢复和光保护算法仿真新的统一光网络，采用光分组、突发、帧、信元交换设计协议，提供区分服务等级和按需服务质量。任务2.NGN网络控制、管理和信令设计一种信令体系结构，允许快速但优化的分组路由，实现基于网络状况的智能判断的NC&AMM。研究一种自动检测和自动恢复网络故障的方法任务3.NGN网元设计和光技术为IP/WDM网元设计一种可扩展的交换体系结构。实施最有效的竞争解决和拥塞控制方法。

The proposed project explores a two-tier signaling approach with optical label switching (OLS) technique that offers the following desired properties: (a) accommodates signals of any protocol/format, (b) achieves ultra-low latency for transporting high burst-rate packets, (c) requires no network or packet synchronization, (d) interoperates with both circuit-switched and packet-switched traffic, and (e) automatically detects and restores network failures.The project focuses not on prototyping and testbed creation but on the design, simulations, analysis of new optical networking technologies. In particular, the project investigates novel ways to incorporate intelligence in the optical nodes and in the management system to make the network more resilient, robust, and efficient. The tasks and sub-tasks of the project are listed below:Task 1. Next Generation Networks (NGN) architecture and protocol studies Simulate and design MPLS restoration and optical protection algorithms Emulate New Unified Optical Networking with optical packet, burst, frame, cell switching Design protocols for providing differentiated Class of Service and on-demand QoS. Task 2. NGN network control, management, and signaling Design a signaling architecture which allows rapid but optimized routing of packets Implement NC&M which makes intelligent judgements based on the network condition. Investigate a method for auto-detection and auto-recovery of a fault in the networkTask 3. NGN network element design and optical technologies Design a scalable switch architecture for the IP/WDM network elements. Implement the most effective contention resolution and congestion control method.