Control and management protocols for survivable optical mesh networks
Control and management protocols for survivable optical mesh networks
复制标题
高生存性光网状网络的控制和管理协议
DOI：
10.1109/jlt.2003.819122
复制
发表时间：
2003
影响因子：
4.7
通讯作者：
Mohamed A. Ali
中科院分区：
文献类型：
--
作者：
C. Assi;Y. Ye;S. Dixit;Mohamed A. Ali
本文研究了网状光网络中可共享、可重构连接的在线配置和恢复问题。首先，我们提出了一个新的框架，称为分布式路径选择与本地信息（DPLI），并详细讨论了一个控制和管理协议，以建立和拆除连接，并确定恢复能力的可共享性，在分布式的方式。由于每个节点只维护本地信息，因此协议可扩展性不是一个大问题。其次，我们讨论了网络的能力，从元素故障快速恢复的重要问题。我们提出了一种新的快速恢复信令，最大限度地减少了服务中断时间后，发生故障的网络与预先计划的恢复路径。该新算法的显著贡献在于发现连接恢复时间与恢复路径长度无关（即，消除传播延迟的影响）、沿着恢复路径的交换机配置时间的累积的影响、以及当多个配置请求同时到达时在任何特定节点处的交换机配置等待时间的影响。我们通过仿真实验评估所提出的协议的有效性。
This paper considers the problem of online provisioning and restoration of sharable, restorable connections in a mesh-based optical network. First, we propose a new framework called distributed path selection with local information (DPLI) and discuss in detail a control and management protocol to set up and tear down connections and determine restoration capacity sharability in a distributed manner. Since only local information is maintained at each node, protocol scalability is not a big concern. Second, we discuss the important problem of the network's ability to quickly recover from element failures. We propose a new rapid restoration signaling that minimizes the service interruption time upon the occurrence of a failure in a network with preplanned restoration paths. The significant contribution of this new algorithm is that the connection restoration time is found to be independent of the restoration path length (i.e., eliminating the effect of the propagation delay), of the accumulation of the switch configuration time along the restoration path, and of the switch configuration waiting time at any particular node when multiple configuration requests arrive simultaneously. We evaluate through simulation experiments the effectiveness of the proposed protocols.
影响因子：
4.7
作者：
John Y. Wei;Ray I. McFarland
通讯作者：
John Y. Wei;Ray I. McFarland