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首页> 外文会议>Conference on Optical Transmission Systems and Equipment for WDM Networking, Jul 29-31, 2002, Boston, USA >Experiments over ONRAMP: A Reconfigurable Optical Access Network
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Experiments over ONRAMP: A Reconfigurable Optical Access Network

机译：通过ONRAMP进行的实验：可重新配置的光接入网络

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摘要

The integration of electronic routing functions with WDM functions in network elements capable of reconfiguration over short time scales enables access networks to efficiently service time varying demand. An effective coordination of electronic and WDM network functions allows traffic to bypass electronic to optical conversion within the access network. The cost benefits derived from reduced transponder use due to this coordination can result in lower cost access for end users. The transparency of WDM also allows heterogeneous traffic formats to be carried over a common fiber. In this paper, we describe a reconfigurable WDM access network testbed that incorporates features outlined above. This testbed was used in demonstrating network functions such as dynamic lightpath provisioning, packet flow-switching, and remote amplification for supporting large numbers of end users. The testbed network incorporates protection switching and network control capabilities. The testbed network also provides connectivity to an in-ground long haul network. The testbed architecture and description of networking experiments demonstrating its capabilities are presented. The throughput degradation due to optical flow switching for Transport Control Protocol (TCP) data transmissions over large bitrate-delay product links is characterized. Adding the Eifel Algorithm to the TCP implementation restored performance. The performance of a remotely pumped EDFA for serving many users in the collection/distribution network is also presented.
机译：电子路由功能与WDM功能集成在能够在短时间内重新配置的网元中，使接入网能够有效地满足时变需求。电子和WDM网络功能的有效协调使流量能够绕过接入网内的电子到光学转换。由于这种协调，减少了转发器的使用所带来的成本优势可导致最终用户的成本降低。 WDM的透明性还允许通过通用光纤承载异构流量格式。在本文中，我们描述了一个可重配置的WDM接入网络测试平台，该平台具有上述功能。该测试平台用于演示网络功能，例如动态光径供应，数据包流交换和远程放大，以支持大量最终用户。测试平台网络具有保护切换和网络控制功能。测试平台网络还提供与地面远程网络的连接。介绍了测试平台的体系结构和网络实验的说明，以证明其功能。表征了由于用于大比特率延迟乘积链路上的传输控制协议（TCP）数据传输的光流交换而导致的吞吐量下降。将Eifel算法添加到TCP实现中可恢复性能。还介绍了为收集/分配网络中的许多用户服务的远程泵送EDFA的性能。

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