光通信技术
光通信技術
광통신기술
OPTICAL COMMUNICATION TECHNOLOGY
2010年
3期
30-33
,共4页
王汝言%路振山%吴大鹏%黄胜
王汝言%路振山%吳大鵬%黃勝
왕여언%로진산%오대붕%황성
光突发交换%恢复机制%区分服务%抢占
光突髮交換%恢複機製%區分服務%搶佔
광돌발교환%회복궤제%구분복무%창점
optical burst switch%restoration scheme%service-oriented%preemption
提出一种新的支持光突发交换网络中优先级抢占的快速恢复机制.该机制对不同优先级的业务采取不同的恢复策略,实现故障的快速恢复.同时采用阈值检测方式支持优先级抢占,减少受影响链路中较高优先级业务的丢包.仿真结果表明,基于优先级抢占的恢复机制具有较低的丢包率,对高优先级业务丢包率性能改善更为明显.
提齣一種新的支持光突髮交換網絡中優先級搶佔的快速恢複機製.該機製對不同優先級的業務採取不同的恢複策略,實現故障的快速恢複.同時採用閾值檢測方式支持優先級搶佔,減少受影響鏈路中較高優先級業務的丟包.倣真結果錶明,基于優先級搶佔的恢複機製具有較低的丟包率,對高優先級業務丟包率性能改善更為明顯.
제출일충신적지지광돌발교환망락중우선급창점적쾌속회복궤제.해궤제대불동우선급적업무채취불동적회복책략,실현고장적쾌속회복.동시채용역치검측방식지지우선급창점,감소수영향련로중교고우선급업무적주포.방진결과표명,기우우선급창점적회복궤제구유교저적주포솔,대고우선급업무주포솔성능개선경위명현.
In this paper, a novel fast restoration scheme based on preemption for optical burst switched networks is proposed. The scheme takes different restoration actions according to wavelength resource of node to provide fast differentiated restoration services, and gets lower burst loss rate of high-priority traffic with preemption. Through detailed descriptive analysis and a comprehensive simulation study, the scheme demonstrate low fault management overheads, and excellent burst loss performance, especially for the high-priority traffic, and gives us higher recovery success rate as well.