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

拟议的项目探索了一种具有光学标签交换（OLS）技术的双层信令方法，该技术提供了以下所需的特性：（a）适应任何协议/格式的信号，（B）实现用于传输高突发速率分组的超低等待时间，（c）不需要网络或分组同步，（d）与电路交换和分组交换业务交互操作，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，模拟和分析。特别是，该项目研究了将智能纳入光节点和管理系统的新方法，以使网络更具弹性，鲁棒性和效率。该项目的任务和子任务如下所示：任务1。下一代网络（NGN）架构和协议研究模拟和设计MPLS恢复和光保护算法利用光分组、突发、帧和信元交换模拟新型统一光网络设计协议，提供差异化服务等级和按需QoS。任务2. NGN网络控制、管理和信令设计一种信令架构，允许快速但优化的分组路由实现NC M，根据网络状况做出智能判断。研究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网元设计一个可扩展的交换机架构。实现最有效的争用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.