N. Yamanaka, S. Okamoto, K. Shiomoto, E. Oki, W. Imajuku
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引用次数: 2
Abstract
This paper describes multilayer traffic engineering and signaling technologies in a photonic-GMPLS-router network. Multilayer traffic engineering, which yields the dynamic cooperation of IP and photonic layers, is described to provide IP services cost-effectively. To realize multilayer traffic engineering, we propose the OSPF extension, which advertises both the number of total wavelengths and the number of unreserved wavelengths, and the RSVP-TE extension, which realizes the least number of wavelength conversions. In addition, this paper presents a heuristic-based multilayer topology design scheme that uses IP traffic measurements in a generalized multiprotocol label switch (GMPLS). Our design scheme yields the optical label switch path (OLSP) network topology, i.e. OLSP placement, that minimizes network cost, in response to fluctuations in IP traffic demand. In other words, the OLSP network topology is dynamically reconfigured to match IP traffic demand. Networks are reconfigured by the proposed scheme so as to utilize the network resources cost-effectively.
本文介绍了光子-GMPLS-路由器网络中的多层流量工程和信令技术。多层流量工程实现了 IP 层和光子层的动态合作,可以经济高效地提供 IP 服务。为了实现多层流量工程,我们提出了同时公布总波长数和未保留波长数的 OSPF 扩展和实现最少波长转换的 RSVP-TE 扩展。此外,本文还介绍了一种基于启发式的多层拓扑设计方案,该方案在通用多协议标签交换机(GMPLS)中使用 IP 流量测量。我们的设计方案可生成光标签交换路径(OLSP)网络拓扑结构,即 OLSP 位置,从而最大限度地降低网络成本,以应对 IP 流量需求的波动。换句话说,OLSP 网络拓扑结构是动态重新配置的,以满足 IP 流量需求。建议的方案可重新配置网络,从而经济高效地利用网络资源。