简介:Thefastparallelrestoration(FPR)schemeisproposedtoachievethefastsetupofrestorationlabelswitchedpath(LSP)inthedistributedopticalnetworks.TheschemeisderivedbydividingthewholerestorationLSPintoseveralsegmentsofsub-LSPandtriggeringeachsub-LSPalongthenewroutetofinishthesignalingprocedureconcurrently,andsubsequentlymergingallsub-LSPsintoawholeLSP.ThetheoreticalanalysisandsimulationresultsshowthattheFPRschemeoutperformstheothertwotypicalrestorationschemesintermsofconnectionsetuptime.