OBS网络中基于可用性感知的故障恢复机制

Fast Restoration Scheme Based on Availability of Perception for Optical Burst Switching Networks

提出一种基于可用性感知的故障恢复机制。该机制使故障恢复节点能够根据链路的拥塞情况对转发的受损业务进行自适应调整,进而有效避免因简单转发而导致的节点拥塞现象。仿真结果表明,基于可用性感知的恢复机制具有较好的丢包性能,并且能够对业务进行区分,增强了网络对高优先级业务的保障能力。

In this paper, a fast restoration scheme based on availability of perception for optical burst switching networks is proposed. The recovery nodes can make the retransmission of damaged service adjust the traffic according to the situation of link congestion. And it can effectively avoid the node congestion caused by simple retransmission. Through detailed descriptive analysis and a comprehensive simulation study, the scheme based on the availa- bility of perception has better burst loss performance, a good service-distinction performance, and enhances the capabilities of high-priority service.