HSRP状态机制的改变图

《HSRP状态机制的改变图》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、a-HSRPisconfiguredonanenabledinterface.b-HSRPisdisabledonaninterfaceortheinterfaceisdisabled.c-Activetimerexpiry.TheActivetimerwassettotheHoldtimewhenthelastHellomessagewasseenfromtheactiverouter.d-Standbytimerexpiry.TheStandbytimerwassettotheHoldtimewhenthelastHellomessagewasseenfromthestandbyro

2、uter.e-Hellotimerexpiry.TheperiodictimerforsendingHellomessageshasexpired.f-ReceiptofaHellomessageofhigherpriorityfromarouterinSpeakstate.g-ReceiptofaHellomessageofhigherpriorityfromtheactiverouter.h-ReceiptofaHellomessageoflowerpriorityfromtheactiverouter.i-ReceiptofaResignmessagefromtheactivero

3、uter.j-ReceiptofaCoupmessagefromahigherpriorityrouter.k-ReceiptofaHellomessageofhigherpriorityfromthestandbyrouter.l-ReceiptofaHellomessageoflowerpriorityfromthestandbyrouterAStartActiveTimerIfthisactionoccurredastheresultofthereceiptofaanauthenticatedHellomessagefromtheactiverouter,theActivetime

4、rissettotheHoldtimefieldintheHellomessage.OtherwisetheActivetimerissettothecurrentHoldtimevalueinusebythisrouter.TheActivetimeristhenstarted.BStartStandbyTimerIfthisactionoccurredastheresultofthereceiptofanauthenticatedHellomessagefromthestandbyrouter,theStandbytimerissettotheHoldtimefieldintheHe

5、llomessage.OtherwisetheStandbytimerissettothecurrentholdtimevalueinusebythisrouter.TheStandbytimeristhenstarted.CStopActiveTimerTheActivetimerisstopped.DStopStandbyTimerTheStandbytimerisstopped.ELearnParametersThisactionistakenwhenanauthenticatedmessageisreceivedfromtheactiverouter.IfthevirtualIP

6、addressforthisgroupwasnotmanuallyconfigured,thevirtualIPaddressMAYbelearnedfromthemessage.TherouterMAYlearnHellotimeandHoldtimevaluesfromthemessage.FSendHelloMessageTheroutersendsaHellomessagewithitscurrentState,HellotimeandHoldtime.GSendCoupMessageTheroutersendsaCoupmessagetoinformtheactiveroute

7、rthatthereisahigherpriorityrouteravailable.HSendResignMessageTheroutersendsaResignmessagetoallowanotherroutertobecometheactiverouter.ISendGratuitousARPMessageTherouterbroadcastsanARPresponsepacketadvertisingthegroup’sv