removesccdp
ccdp 时间:2021-02-27 阅读:()
AmericasHeadquarters:CiscoSystems,Inc.
,170WestTasmanDrive,SanJose,CA95134-1706USA2004-2009CiscoSystems,Inc.
Allrightsreserved.
ConfigurationReplaceandConfigurationRollbackFirstPublished:March3,2004LastUpdated:May4,2009TheConfigurationReplaceandConfigurationRollbackfeatureprovidesthecapabilitytoreplacethecurrentrunningconfigurationwithanysavedCiscoIOSXEconfigurationfile.
Thisfunctionalitycanbeusedtoreverttoapreviousconfigurationstate,effectivelyrollingbackanyconfigurationchangesthatweremadesincethatconfigurationfilewassaved.
FindingFeatureInformationForthelatestfeatureinformationandcaveats,seethereleasenotesforyourplatformandsoftwarerelease.
Tofindinformationaboutthefeaturesdocumentedinthismodule,andtoseealistofthereleasesinwhicheachfeatureissupported,seethe"FeatureInformationforConfigurationReplaceandConfigurationRollback"sectiononpage16.
UseCiscoFeatureNavigatortofindinformationaboutplatformsupportandCiscoIOSXEsoftwareimagesupport.
ToaccessCiscoFeatureNavigator,gotohttp://www.
cisco.
com/go/cfn.
AnaccountonCisco.
comisnotrequired.
ContentsInformationAboutConfigurationReplaceandConfigurationRollback,page2HowtoUseConfigurationReplaceandConfigurationRollback,page5ConfigurationExamplesforConfigurationReplaceandConfigurationRollback,page11AdditionalReferences,page14ConfigurationReplaceandConfigurationRollbackInformationAboutConfigurationReplaceandConfigurationRollback2FeatureInformationforConfigurationReplaceandConfigurationRollback,page16InformationAboutConfigurationReplaceandConfigurationRollbackTousetheConfigurationReplaceandConfigurationRollbackfeature,youshouldunderstandthefollowingconcepts:ConfigurationArchive,page2ConfigurationReplace,page2ConfigurationRollback,page3BenefitsofConfigurationReplaceandConfigurationRollback,page4ConfigurationArchiveTheCiscoIOSXEconfigurationarchiveisintendedtoprovideamechanismtostore,organize,andmanageanarchiveofCiscoIOSXEconfigurationfilestoenhancetheconfigurationrollbackcapabilityprovidedbytheconfigurereplacecommand.
Beforethisfeaturewasintroduced,youcouldsavecopiesoftherunningconfigurationusingthecopyrunning-configdestination-urlcommand,storingthereplacementfileeitherlocallyorremotely.
However,thismethodlackedanyautomatedfilemanagement.
Ontheotherhand,theConfigurationReplaceandConfigurationRollbackfeatureprovidesthecapabilitytoautomaticallysavecopiesoftherunningconfigurationtotheCiscoIOSXEconfigurationarchive.
Thesearchivedfilesserveascheckpointconfigurationreferencesandcanbeusedbytheconfigurereplacecommandtoreverttopreviousconfigurationstates.
ThearchiveconfigcommandallowsyoutosaveCiscoIOSXEconfigurationsintheconfigurationarchiveusingastandardlocationandfilenameprefixthatisautomaticallyappendedwithanincrementalversionnumber(andoptionaltimestamp)aseachconsecutivefileissaved.
ThisfunctionalityprovidesameansforconsistentidentificationofsavedCiscoIOSXEconfigurationfiles.
Youcanspecifyhowmanyversionsoftherunningconfigurationarekeptinthearchive.
Afterthemaximumnumberoffilesaresavedinthearchive,theoldestfileisautomaticallydeletedwhenthenext,mostrecentfileissaved.
TheshowarchivecommanddisplaysinformationforallconfigurationfilessavedintheCiscoIOSXEconfigurationarchive.
TheCiscoIOSXEconfigurationarchive,inwhichtheconfigurationfilesarestoredandavailableforusewiththeconfigurereplacecommand,canbelocatedonthefollowingfilesystems:harddisk:bootflash:usb0:usb1:ConfigurationReplaceTheconfigurereplacecommandprovidesthecapabilitytoreplacethecurrentrunningconfigurationwithanysavedCiscoIOSXEconfigurationfile.
Thisfunctionalitycanbeusedtoreverttoapreviousconfigurationstate,effectivelyrollingbackanyconfigurationchangesthatweremadesincethepreviousconfigurationstatewassaved.
ConfigurationReplaceandConfigurationRollbackInformationAboutConfigurationReplaceandConfigurationRollback3Whenusingtheconfigurereplacecommand,youmustspecifyasavedCiscoIOSXEconfigurationasthereplacementconfigurationfileforthecurrentrunningconfiguration.
ThereplacementfilemustbeacompleteconfigurationgeneratedbyaCiscoIOSXEdevice(forexample,aconfigurationgeneratedbythecopyrunning-configdestination-urlcommand),or,ifgeneratedexternally,thereplacementfilemustcomplywiththeformatoffilesgeneratedbyCiscoIOSXEdevices.
Whentheconfigurereplacecommandisentered,thecurrentrunningconfigurationiscomparedwiththespecifiedreplacementconfigurationandasetofdiffsisgenerated.
Thealgorithmusedtocomparethetwofilesisthesameasthatemployedbytheshowarchiveconfigdifferencescommand.
TheresultingdiffsarethenappliedbytheCiscoIOSXEparsertoachievethereplacementconfigurationstate.
Onlythediffsareapplied,avoidingpotentialservicedisruptionfromreapplyingconfigurationcommandsthatalreadyexistinthecurrentrunningconfiguration.
Thisalgorithmeffectivelyhandlesconfigurationchangestoorder-dependentcommands(suchasaccesslists)throughamultiplepassprocess.
Undernormalcircumstances,nomorethanthreepassesareneededtocompleteaconfigurationreplaceoperation,andalimitoffivepassesisperformedtoprecludeanyloopingbehavior.
TheCiscoIOSXEcopysource-urlrunning-configcommandisoftenusedtocopyastoredCiscoIOSXEconfigurationfiletotherunningconfiguration.
Whenusingthecopysource-urlrunning-configcommandasanalternativetotheconfigurereplacetarget-urlcommand,thefollowingmajordifferencesshouldbenoted:Thecopysource-urlrunning-configcommandisamergeoperationandpreservesallthecommandsfromboththesourcefileandthecurrentrunningconfiguration.
Thiscommanddoesnotremovecommandsfromthecurrentrunningconfigurationthatarenotpresentinthesourcefile.
Incontrast,theconfigurereplacetarget-urlcommandremovescommandsfromthecurrentrunningconfigurationthatarenotpresentinthereplacementfileandaddscommandstothecurrentrunningconfigurationthatneedtobeadded.
Thecopysource-urlrunning-configcommandapplieseverycommandinthesourcefile,whetherornotthecommandisalreadypresentinthecurrentrunningconfiguration.
Thisalgorithmisinefficientand,insomecases,canresultinserviceoutages.
Incontrast,theconfigurereplacetarget-urlcommandonlyappliesthecommandsthatneedtobeapplied—noexistingcommandsinthecurrentrunningconfigurationarereapplied.
Apartialconfigurationfilemaybeusedasthesourcefileforthecopysource-urlrunning-configcommand,whereasacompleteCiscoIOSXEconfigurationfilemustbeusedasthereplacementfilefortheconfigurereplacetarget-urlcommand.
NoteWhentheconfigurereplacecommandisused,therunningconfigurationfileislockedbydefaultforthedurationoftheconfigurationreplaceoperation.
Thislockingmechanismpreventsotherusersfromchangingtherunningconfigurationwhilethereplacementoperationistakingplace,whichmightotherwisecausethereplacementoperationtoterminateunsuccessfully.
Youcandisablethelockingoftherunningconfigurationbyusingthenolockkeywordwhenissuingtheconfigurereplacecommand.
Therunningconfigurationlockisautomaticallyclearedattheendoftheconfigurationreplaceoperation.
Youcandisplayanylocksthatmaybecurrentlyappliedtotherunningconfigurationusingtheshowconfigurationlockcommand.
ConfigurationRollbackTheconceptofrollbackcomesfromthetransactionalprocessingmodelcommontodatabaseoperations.
Inadatabasetransaction,youmightmakeasetofchangestoagivendatabasetable.
Youthenmustchoosewhethertocommitthechanges(applythechangespermanently)ortorollbackthechangesConfigurationReplaceandConfigurationRollbackInformationAboutConfigurationReplaceandConfigurationRollback4(discardthechangesandreverttothepreviousstateofthetable).
Inthiscontext,rollbackmeansthatajournalfilecontainingalogofthechangesisdiscarded,andnochangesareapplied.
Theresultoftherollbackoperationistoreverttothepreviousstate,beforeanychangeswereapplied.
Theconfigurereplacecommandallowsyoutoreverttoapreviousconfigurationstate,effectivelyrollingbackchangesthatweremadesincethepreviousconfigurationstatewassaved.
Insteadofbasingtherollbackoperationonaspecificsetofchangesthatwereapplied,theCiscoIOSXEconfigurationrollbackcapabilityusestheconceptofrevertingtoaspecificconfigurationstatebasedonasavedCiscoIOSXEconfigurationfile.
Thisconceptissimilartothedatabaseideaofsavingacheckpoint(asavedversionofthedatabase)topreserveaspecificstate.
Iftheconfigurationrollbackcapabilityisdesired,youmustsavetheCiscoIOSXErunningconfigurationbeforemakinganyconfigurationchanges.
Then,afterenteringconfigurationchanges,youcanusethatsavedconfigurationfiletorollbackthechanges(usingtheconfigurereplacetarget-urlcommand).
Furthermore,sinceyoucanspecifyanysavedCiscoIOSXEconfigurationfileasthereplacementconfiguration,youarenotlimitedtoafixednumberofrollbacks,asisthecaseinsomerollbackmodelsbasedonajournalfile.
ConfigurationRollbackConfirmedChangeTheConfigurationRollbackConfirmedChangefeatureenablesanaddedcriteriaofaconfirmationtoconfigurationchanges.
Thisfunctionalityenablesarollbacktooccurifaconfirmationoftherequestedchangesisnotreceivedinaconfiguredtimeframe.
Commandfailurescanalsobeconfiguredtotriggeraconfigurationrollback.
Thefollowingstepsoutlinehowthisprocessisachieved:1.
Whenenteringconfigurationmode,thisnewoptionallowsyoutorequestconfirmation(aconfirmationtimelimitmustbesupplied)oftheconfigurationchanges.
2.
Afterexitingconfigurationmode,youmustentertheconfirmationcommand.
Ifnoconfirmationisenteredwithintherequestedtimelimit,theconfigurationwillreverttoitspreviousstate.
BenefitsofConfigurationReplaceandConfigurationRollbackAllowsyoutoreverttoapreviousconfigurationstate,effectivelyrollingbackconfigurationchanges.
AllowsyoutoreplacethecurrentrunningconfigurationfilewiththestartupconfigurationfilewithouthavingtoreloadtherouterormanuallyundoCLIchangestotherunningconfigurationfile,thereforereducingsystemdowntime.
AllowsyoutoreverttoanysavedCiscoIOSXEconfigurationstate.
Simplifiesconfigurationchangesbyallowingyoutoapplyacompleteconfigurationfiletotherouter,whereonlythecommandsthatneedtobeaddedorremovedareaffected.
Whenusingtheconfigurereplacecommandasanalternativetothecopysource-urlrunning-configcommand,increasesefficiencyandpreventsriskofserviceoutagesbynotreapplyingexistingcommandsinthecurrentrunningconfiguration.
ConfigurationReplaceandConfigurationRollbackHowtoUseConfigurationReplaceandConfigurationRollback5HowtoUseConfigurationReplaceandConfigurationRollbackThissectioncontainsthefollowingprocedures:CreatingaConfigurationArchive,page5(optional)PerformingaConfigurationReplaceorConfigurationRollbackOperation,page7(required)MonitoringandTroubleshootingtheConfigurationReplaceandConfigurationRollbackFeature,page9(optional)CreatingaConfigurationArchiveNoprerequisiteconfigurationisneededtousetheconfigurereplacecommand.
UsingtheconfigurereplacecommandinconjunctionwiththeCiscoIOSXEconfigurationarchiveandthearchiveconfigcommandisoptionalbutofferssignificantbenefitforconfigurationrollbackscenarios.
Beforeusingthearchiveconfigcommand,theconfigurationarchivemustbeconfigured.
Performthistasktoconfigurethecharacteristicsoftheconfigurationarchive.
SUMMARYSTEPS1.
enable2.
configureterminal3.
archive4.
pathurl5.
maximumnumber6.
time-periodminutes7.
end8.
archiveconfigDETAILEDSTEPSCommandorActionPurposeStep1enableExample:Router>enableEnablesprivilegedEXECmode.
Enteryourpasswordifprompted.
Step2configureterminalExample:Router#configureterminalEntersglobalconfigurationmode.
Step3archiveExample:Router(config)#archiveEntersarchiveconfigurationmode.
ConfigurationReplaceandConfigurationRollbackHowtoUseConfigurationReplaceandConfigurationRollback6Step4pathurlExample:Router(config-archive)#pathbootflash:myconfigSpecifiesthelocationandfilenameprefixforthefilesintheCiscoIOSXEconfigurationarchive.
TheurlargumentisaURL(accessiblebytheCiscoIOSXEfilesystem)usedforsavingarchivefilesoftherunningconfigurationfileintheCiscoIOSXEconfigurationarchive.
Youcansetupanarchiveonanyfilesystemthatyourplatformsupports(seethe"ConfigurationArchive"sectiononpage2).
NoteIfadirectoryisspecifiedinthepathinsteadoffile,thedirectorynamemustbefollowedbyaforwardslashasfollows:pathflash:/directory/.
Theforwardslashisnotnecessaryafterafilename,onlywhenspecifyingadirectory.
Step5maximumnumberExample:Router(config-archive)#maximum14(Optional)SetsthemaximumnumberofarchivefilesoftherunningconfigurationtobesavedintheCiscoIOSXEconfigurationarchive.
ThenumberargumentisthemaximumnumberofarchivefilesoftherunningconfigurationtobesavedintheCiscoIOSXEconfigurationarchive.
Validvaluesarefrom1to14.
Thedefaultis10.
NoteBeforeusingthiscommand,youmustconfigurethepathcommandtospecifythelocationandfilenameprefixforthefilesintheCiscoIOSXEconfigurationarchive.
Step6time-periodminutesExample:Router(config-archive)#time-period10(Optional)SetsthetimeincrementforautomaticallysavinganarchivefileofthecurrentrunningconfigurationintheCiscoIOSXEconfigurationarchive.
Theminutesargumentspecifieshowoften,inminutes,toautomaticallysaveanarchivefileofthecurrentrunningconfigurationintheCiscoIOSXEconfigurationarchive.
NoteBeforeusingthiscommand,youmustconfigurethepathcommandtospecifythelocationandfilenameprefixforthefilesintheCiscoIOSXEconfigurationarchive.
Step7endExample:Router(config-archive)#endExitstoprivilegedEXECmode.
Step8archiveconfigExample:Router#archiveconfigSavesthecurrentrunningconfigurationfiletotheconfigurationarchive.
NoteThepathcommandmustbeconfiguredbeforeusingthiscommand.
CommandorActionPurposeConfigurationReplaceandConfigurationRollbackHowtoUseConfigurationReplaceandConfigurationRollback7PerformingaConfigurationReplaceorConfigurationRollbackOperationPerformthistasktoreplacethecurrentrunningconfigurationfilewithasavedCiscoIOSXEconfigurationfile.
NoteYoumustcreateaconfigurationarchivebeforeperformingthisprocedure.
SeeCreatingaConfigurationArchive,page5fordetailedsteps.
Thefollowingproceduredetailshowtoreturntothatarchivedconfigurationintheeventofaproblemwiththecurrentrunningconfiguration.
SUMMARYSTEPS1.
enable2.
configurereplacetarget-url[nolock][list][force][ignorecase][reverttrigger[error][timerminutes]|timeminutes]3.
configurerevert{now|timer{minutes|idleminutes}}4.
configureconfirm5.
exitConfigurationReplaceandConfigurationRollbackHowtoUseConfigurationReplaceandConfigurationRollback8DETAILEDSTEPSCommandorActionPurposeStep1enableExample:Router>enableEnablesprivilegedEXECmode.
Enteryourpasswordifprompted.
Step2configurereplacetarget-url[nolock][list][force][ignorecase][reverttrigger[error][timerminutes]|timeminutes]Example:Router#configurereplacebootflash:myconfig-1listtime30ReplacesthecurrentrunningconfigurationfilewithasavedCiscoIOSXEconfigurationfile.
Thetarget-urlargumentisaURL(accessiblebytheCiscoIOSXEfilesystem)ofthesavedCiscoIOSXEconfigurationfilethatistoreplacethecurrentrunningconfiguration,suchastheconfigurationfilecreatedusingthearchiveconfigcommand.
ThelistkeyworddisplaysalistofthecommandlinesappliedbytheCiscoIOSXEsoftwareparserduringeachpassoftheconfigurationreplaceoperation.
Thetotalnumberofpassesperformedisalsodisplayed.
TheforcekeywordreplacesthecurrentrunningconfigurationfilewiththespecifiedsavedCiscoIOSXEconfigurationfilewithoutpromptingyouforconfirmation.
Thetimeminuteskeywordandargumentspecifythetime(inminutes)withinwhichyoumustentertheconfigureconfirmcommandtoconfirmreplacementofthecurrentrunningconfigurationfile.
Iftheconfigureconfirmcommandisnotenteredwithinthespecifiedtimelimit,theconfigurationreplaceoperationisautomaticallyreversed(inotherwords,thecurrentrunningconfigurationfileisrestoredtotheconfigurationstatethatexistedpriortoenteringtheconfigurereplacecommand).
Thenolockkeyworddisablesthelockingoftherunningconfigurationfilethatpreventsotherusersfromchangingtherunningconfigurationduringaconfigurationreplaceoperation.
Thereverttriggerkeywordssetthefollowingtriggersforrevertingtotheoriginalconfiguration:–error—Revertstotheoriginalconfigurationuponerror.
–timerminutes—Revertstotheoriginalconfigurationifspecifiedtimeelapses.
Theignorecasekeywordallowstheconfigurationtoignorethecaseoftheconfirmationcommand.
ConfigurationReplaceandConfigurationRollbackHowtoUseConfigurationReplaceandConfigurationRollback9MonitoringandTroubleshootingtheConfigurationReplaceandConfigurationRollbackFeaturePerformthistasktomonitorandtroubleshoottheConfigurationReplaceandConfigurationRollbackfeature.
SUMMARYSTEPS1.
enable2.
showarchive3.
debugarchiveversioning4.
debugarchiveconfigtimestamp5.
exitDETAILEDSTEPSStep1enableUsethiscommandtoenableprivilegedEXECmode.
Enteryourpasswordifprompted.
Forexample:Router>enableRouter#Step2showarchiveStep3configurerevert{now|timer{minutes|idleminutes}}Example:Router#configurerevertnow(Optional)Tocancelthetimedrollbackandtriggertherollbackimmediately,ortoresetparametersforthetimedrollback,usetheconfigurerevertcommandinprivilegedEXECmode.
now—Triggerstherollbackimmediately.
timer—Resetstheconfigurationreverttimer.
–Usetheminutesargumentwiththetimerkeywordtospecifyanewreverttimeinminutes.
–Usetheidlekeywordalongwithatimeinminutestosetthemaximumallowabletimeperiodofnoactivitybeforerevertingtothesavedconfiguration.
Step4configureconfirmExample:Router#configureconfirm(Optional)ConfirmsreplacementofthecurrentrunningconfigurationfilewithasavedCiscoIOSXEconfigurationfile.
NoteUsethiscommandonlyifthetimesecondskeywordandargumentoftheconfigurereplacecommandarespecified.
Step5exitExample:Router#exitExitstouserEXECmode.
CommandorActionPurposeConfigurationReplaceandConfigurationRollbackHowtoUseConfigurationReplaceandConfigurationRollback10UsethiscommandtodisplayinformationaboutthefilessavedintheCiscoIOSXEconfigurationarchive.
Forexample:Router#showarchiveTherearecurrently1archiveconfigurationssaved.
Thenextarchivefilewillbenamedbootflash:myconfig-2Archive#Name01bootflash:myconfig-1ConfigurationExamplesforConfigurationReplaceandConfigurationRollbackThissectionprovidesthefollowingconfigurationexamples:CreatingaConfigurationArchive:Example,page12ReplacingtheCurrentRunningConfigurationwithaSavedCiscoIOSXEConfigurationFile:Example,page12RevertingtotheStartupConfigurationFile:Example,page13PerformingaConfigurationReplaceOperationwiththeconfigureconfirmCommand:Example,page13PerformingaConfigurationRollbackOperation:Example,page13ConfigurationReplaceandConfigurationRollbackConfigurationExamplesforConfigurationReplaceandConfigurationRollback12CreatingaConfigurationArchive:ExampleThefollowingexampleshowshowtoperformtheinitialconfigurationoftheCiscoIOSXEconfigurationarchive.
Inthisexample,bootflash:myconfigisspecifiedasthelocationandfilenameprefixforthefilesintheconfigurationarchiveandavalueof10issetasthemaximumnumberofarchivefilestobesaved.
configureterminal!
archivepathbootflash:myconfigmaximum10endReplacingtheCurrentRunningConfigurationwithaSavedCiscoIOSXEConfigurationFile:ExampleThefollowingexampleshowshowtoreplacethecurrentrunningconfigurationwithasavedCiscoIOSXEconfigurationfilenamedbootflash:myconfig.
Theconfigurereplacecommandinteractivelypromptsyoutoconfirmtheoperation.
Router#configurereplacebootflash:myconfigThiswillapplyallnecessaryadditionsanddeletionstoreplacethecurrentrunningconfigurationwiththecontentsofthespecifiedconfigurationfile,whichisassumedtobeacompleteconfiguration,notapartialconfiguration.
EnterYifyouaresureyouwanttoproceed.
[no]:YTotalnumberofpasses:1RollbackDoneInthefollowingexample,thelistkeywordisspecifiedinordertodisplaythecommandlinesthatwereappliedduringtheconfigurationreplaceoperation:Router#configurereplacebootflash:myconfiglistThiswillapplyallnecessaryadditionsanddeletionstoreplacethecurrentrunningconfigurationwiththecontentsofthespecifiedconfigurationfile,whichisassumedtobeacompleteconfiguration,notapartialconfiguration.
EnterYifyouaresureyouwanttoproceed.
[no]:Y!
Pass1!
ListofCommands:nosnmp-servercommunitypublicrosnmp-servercommunitymystringroendTotalnumberofpasses:1RollbackDoneConfigurationReplaceandConfigurationRollbackConfigurationExamplesforConfigurationReplaceandConfigurationRollback13RevertingtotheStartupConfigurationFile:ExampleThefollowingexampleshowshowtoreverttotheCiscoIOSXEstartupconfigurationfileusingtheconfigurereplacecommand.
Thisexamplealsoshowstheuseoftheoptionalforcekeywordtooverridetheinteractiveuserprompt.
Router#configurereplacenvram:startup-configforceTotalnumberofpasses:1RollbackDonePerformingaConfigurationReplaceOperationwiththeconfigureconfirmCommand:ExampleThefollowingexampleshowstheuseoftheconfigurereplacecommandwiththetimesecondskeywordandargument.
Youmustentertheconfigureconfirmcommandwithinthespecifiedtimelimittoconfirmreplacementofthecurrentrunningconfigurationfile.
Iftheconfigureconfirmcommandisnotenteredwithinthespecifiedtimelimit,theconfigurationreplaceoperationisautomaticallyreversed(inotherwords,thecurrentrunningconfigurationfileisrestoredbacktotheconfigurationstatethatexistedpriortoenteringtheconfigurereplacecommand).
Router#configurereplacenvram:startup-configtime120Thiswillapplyallnecessaryadditionsanddeletionstoreplacethecurrentrunningconfigurationwiththecontentsofthespecifiedconfigurationfile,whichisassumedtobeacompleteconfiguration,notapartialconfiguration.
EnterYifyouaresureyouwanttoproceed.
[no]:YTotalnumberofpasses:1RollbackDoneRouter#configureconfirmPerformingaConfigurationRollbackOperation:ExampleThefollowingexampleshowshowtomakechangestothecurrentrunningconfigurationandthenrollbackthechanges.
Aspartoftheconfigurationrollbackoperation,youmustsavethecurrentrunningconfigurationbeforemakingchangestothefile.
Inthisexample,thearchiveconfigcommandisusedtosavethecurrentrunningconfiguration.
Thegeneratedoutputoftheconfigurereplacecommandindicatesthatonlyonepasswasperformedtocompletetherollbackoperation.
NoteBeforeusingthearchiveconfigcommand,youmustconfigurethepathcommandtospecifythelocationandfilenameprefixforthefilesintheCiscoIOSXEconfigurationarchive.
Youfirstsavethecurrentrunningconfigurationintheconfigurationarchiveasfollows:archiveconfigYouthenenterconfigurationchangesasshowninthefollowingexample:configureterminal!
usernetops2passwordrainConfigurationReplaceandConfigurationRollbackAdditionalReferences14usernetops3passwordsnowexitAfterhavingmadechangestotherunningconfigurationfile,assumeyounowwanttorollbackthesechangesandreverttotheconfigurationthatexistedbeforethechangesweremade.
Theshowarchivecommandisusedtoverifytheversionoftheconfigurationtobeusedasareplacementfile.
Theconfigurereplacecommandisthenusedtoreverttothereplacementconfigurationfileasshowninthefollowingexample:Router#showarchiveTherearecurrently1archiveconfigurationssaved.
Thenextarchivefilewillbenamedbootflash:myconfig-2Archive#Name01bootflash:myconfig-1CCDP,CCIE,CCIP,CCNA,CCNP,CCSP,CCVP,Cisco,theCiscoCertifiedInternetworkExpertlogo,CiscoIOS,CiscoPress,CiscoSystems,CiscoSystemsCapital,theCiscoSystemslogo,CiscoUnity,CollaborationWithoutLimitation,EtherFast,EtherSwitch,EventCenter,FastStep,FollowMeBrowsing,FormShare,GigaDrive,HomeLink,InternetQuotient,IOS,iPhone,iQuickStudy,IronPort,theIronPortlogo,LightStream,Linksys,MediaTone,MeetingPlace,ConfigurationVersioningCiscoIOSXERelease2.
1TheConfigurationVersioningfeatureallowsyoutomaintainandmanagebackupcopiesoftheCiscoIOSXErunningconfigurationonoroffthedevice.
TheConfigurationReplacefeatureusestheConfigurationVersioningfeaturetoprovidearollbacktoasavedcopyoftherunningconfiguration.
InCiscoIOSXERelease2.
1,thisfeaturewasintroducedonCiscoASR1000SeriesRouters.
ExclusiveConfigurationChangeAccessCiscoIOSXERelease2.
1TheExclusiveConfigurationChangeAccessfeature(alsocalledthe"ConfigurationLock"feature)allowsyoutohaveexclusivechangeaccesstotheCiscoIOSXErunningconfiguration,preventingmultipleusersfrommakingconcurrentconfigurationchanges.
ThefollowingcommandwasmodifiedbythisfeatureandappliestotheConfigurationReplaceandConfigurationRollbackfeature:showconfigurationlock.
Refertotheseparatemodule,ExclusiveConfigurationChangeAccessandAccessSessionLocking,fordetailsConfigurationRollbackConfirmedChangeCiscoIOSXERelease2.
1TheConfigurationRollbackConfirmedChangefeatureallowsconfigurationchangestobeperformedwithanoptionalrequirementthattheybeconfirmed.
Ifthisconfirmationisnotreceived,theconfigurationisreturnedtothestatepriortothechangesbeingapplied.
Thismechanismprovidesasafeguardagainstinadvertentlossofconnectivitybetweenanetworkdeviceandtheuserormanagementapplicationduetoconfigurationchanges.
InCiscoIOSXERelease2.
1,thisfeaturewasintroducedonCiscoASR1000SeriesRouters.
Thefollowingsectionsprovideinformationaboutthisfeature:ConfigurationRollbackConfirmedChange,page4PerformingaConfigurationReplaceorConfigurationRollbackOperation,page7Thefollowingcommandsweremodifiedbythisfeature:configureconfirm,configurereplace,configurerevert,configureterminalTable1FeatureInformationforConfigurationReplaceandConfigurationRollback(continued)FeatureNameReleasesFeatureInformationConfigurationReplaceandConfigurationRollbackFeatureInformationforConfigurationReplaceandConfigurationRollback18MeetingPlaceChimeSound,MGX,Networkers,NetworkingAcademy,NetworkRegistrar,PCNow,PIX,PowerPanels,ProConnect,ScriptShare,SenderBase,SMARTnet,SpectrumExpert,StackWise,TheFastestWaytoIncreaseYourInternetQuotient,TransPath,WebEx,andtheWebExlogoareregisteredtrademarksofCiscoSystems,Inc.
and/oritsaffiliatesintheUnitedStatesandcertainothercountries.
Allothertrademarksmentionedinthisdocumentorwebsitearethepropertyoftheirrespectiveowners.
TheuseofthewordpartnerdoesnotimplyapartnershiprelationshipbetweenCiscoandanyothercompany.
(0812R)AnyInternetProtocol(IP)addressesusedinthisdocumentarenotintendedtobeactualaddresses.
Anyexamples,commanddisplayoutput,andfiguresincludedinthedocumentareshownforillustrativepurposesonly.
AnyuseofactualIPaddressesinillustrativecontentisunintentionalandcoincidental.
2003-2009CiscoSystems,Inc.
Allrightsreserved.
,170WestTasmanDrive,SanJose,CA95134-1706USA2004-2009CiscoSystems,Inc.
Allrightsreserved.
ConfigurationReplaceandConfigurationRollbackFirstPublished:March3,2004LastUpdated:May4,2009TheConfigurationReplaceandConfigurationRollbackfeatureprovidesthecapabilitytoreplacethecurrentrunningconfigurationwithanysavedCiscoIOSXEconfigurationfile.
Thisfunctionalitycanbeusedtoreverttoapreviousconfigurationstate,effectivelyrollingbackanyconfigurationchangesthatweremadesincethatconfigurationfilewassaved.
FindingFeatureInformationForthelatestfeatureinformationandcaveats,seethereleasenotesforyourplatformandsoftwarerelease.
Tofindinformationaboutthefeaturesdocumentedinthismodule,andtoseealistofthereleasesinwhicheachfeatureissupported,seethe"FeatureInformationforConfigurationReplaceandConfigurationRollback"sectiononpage16.
UseCiscoFeatureNavigatortofindinformationaboutplatformsupportandCiscoIOSXEsoftwareimagesupport.
ToaccessCiscoFeatureNavigator,gotohttp://www.
cisco.
com/go/cfn.
AnaccountonCisco.
comisnotrequired.
ContentsInformationAboutConfigurationReplaceandConfigurationRollback,page2HowtoUseConfigurationReplaceandConfigurationRollback,page5ConfigurationExamplesforConfigurationReplaceandConfigurationRollback,page11AdditionalReferences,page14ConfigurationReplaceandConfigurationRollbackInformationAboutConfigurationReplaceandConfigurationRollback2FeatureInformationforConfigurationReplaceandConfigurationRollback,page16InformationAboutConfigurationReplaceandConfigurationRollbackTousetheConfigurationReplaceandConfigurationRollbackfeature,youshouldunderstandthefollowingconcepts:ConfigurationArchive,page2ConfigurationReplace,page2ConfigurationRollback,page3BenefitsofConfigurationReplaceandConfigurationRollback,page4ConfigurationArchiveTheCiscoIOSXEconfigurationarchiveisintendedtoprovideamechanismtostore,organize,andmanageanarchiveofCiscoIOSXEconfigurationfilestoenhancetheconfigurationrollbackcapabilityprovidedbytheconfigurereplacecommand.
Beforethisfeaturewasintroduced,youcouldsavecopiesoftherunningconfigurationusingthecopyrunning-configdestination-urlcommand,storingthereplacementfileeitherlocallyorremotely.
However,thismethodlackedanyautomatedfilemanagement.
Ontheotherhand,theConfigurationReplaceandConfigurationRollbackfeatureprovidesthecapabilitytoautomaticallysavecopiesoftherunningconfigurationtotheCiscoIOSXEconfigurationarchive.
Thesearchivedfilesserveascheckpointconfigurationreferencesandcanbeusedbytheconfigurereplacecommandtoreverttopreviousconfigurationstates.
ThearchiveconfigcommandallowsyoutosaveCiscoIOSXEconfigurationsintheconfigurationarchiveusingastandardlocationandfilenameprefixthatisautomaticallyappendedwithanincrementalversionnumber(andoptionaltimestamp)aseachconsecutivefileissaved.
ThisfunctionalityprovidesameansforconsistentidentificationofsavedCiscoIOSXEconfigurationfiles.
Youcanspecifyhowmanyversionsoftherunningconfigurationarekeptinthearchive.
Afterthemaximumnumberoffilesaresavedinthearchive,theoldestfileisautomaticallydeletedwhenthenext,mostrecentfileissaved.
TheshowarchivecommanddisplaysinformationforallconfigurationfilessavedintheCiscoIOSXEconfigurationarchive.
TheCiscoIOSXEconfigurationarchive,inwhichtheconfigurationfilesarestoredandavailableforusewiththeconfigurereplacecommand,canbelocatedonthefollowingfilesystems:harddisk:bootflash:usb0:usb1:ConfigurationReplaceTheconfigurereplacecommandprovidesthecapabilitytoreplacethecurrentrunningconfigurationwithanysavedCiscoIOSXEconfigurationfile.
Thisfunctionalitycanbeusedtoreverttoapreviousconfigurationstate,effectivelyrollingbackanyconfigurationchangesthatweremadesincethepreviousconfigurationstatewassaved.
ConfigurationReplaceandConfigurationRollbackInformationAboutConfigurationReplaceandConfigurationRollback3Whenusingtheconfigurereplacecommand,youmustspecifyasavedCiscoIOSXEconfigurationasthereplacementconfigurationfileforthecurrentrunningconfiguration.
ThereplacementfilemustbeacompleteconfigurationgeneratedbyaCiscoIOSXEdevice(forexample,aconfigurationgeneratedbythecopyrunning-configdestination-urlcommand),or,ifgeneratedexternally,thereplacementfilemustcomplywiththeformatoffilesgeneratedbyCiscoIOSXEdevices.
Whentheconfigurereplacecommandisentered,thecurrentrunningconfigurationiscomparedwiththespecifiedreplacementconfigurationandasetofdiffsisgenerated.
Thealgorithmusedtocomparethetwofilesisthesameasthatemployedbytheshowarchiveconfigdifferencescommand.
TheresultingdiffsarethenappliedbytheCiscoIOSXEparsertoachievethereplacementconfigurationstate.
Onlythediffsareapplied,avoidingpotentialservicedisruptionfromreapplyingconfigurationcommandsthatalreadyexistinthecurrentrunningconfiguration.
Thisalgorithmeffectivelyhandlesconfigurationchangestoorder-dependentcommands(suchasaccesslists)throughamultiplepassprocess.
Undernormalcircumstances,nomorethanthreepassesareneededtocompleteaconfigurationreplaceoperation,andalimitoffivepassesisperformedtoprecludeanyloopingbehavior.
TheCiscoIOSXEcopysource-urlrunning-configcommandisoftenusedtocopyastoredCiscoIOSXEconfigurationfiletotherunningconfiguration.
Whenusingthecopysource-urlrunning-configcommandasanalternativetotheconfigurereplacetarget-urlcommand,thefollowingmajordifferencesshouldbenoted:Thecopysource-urlrunning-configcommandisamergeoperationandpreservesallthecommandsfromboththesourcefileandthecurrentrunningconfiguration.
Thiscommanddoesnotremovecommandsfromthecurrentrunningconfigurationthatarenotpresentinthesourcefile.
Incontrast,theconfigurereplacetarget-urlcommandremovescommandsfromthecurrentrunningconfigurationthatarenotpresentinthereplacementfileandaddscommandstothecurrentrunningconfigurationthatneedtobeadded.
Thecopysource-urlrunning-configcommandapplieseverycommandinthesourcefile,whetherornotthecommandisalreadypresentinthecurrentrunningconfiguration.
Thisalgorithmisinefficientand,insomecases,canresultinserviceoutages.
Incontrast,theconfigurereplacetarget-urlcommandonlyappliesthecommandsthatneedtobeapplied—noexistingcommandsinthecurrentrunningconfigurationarereapplied.
Apartialconfigurationfilemaybeusedasthesourcefileforthecopysource-urlrunning-configcommand,whereasacompleteCiscoIOSXEconfigurationfilemustbeusedasthereplacementfilefortheconfigurereplacetarget-urlcommand.
NoteWhentheconfigurereplacecommandisused,therunningconfigurationfileislockedbydefaultforthedurationoftheconfigurationreplaceoperation.
Thislockingmechanismpreventsotherusersfromchangingtherunningconfigurationwhilethereplacementoperationistakingplace,whichmightotherwisecausethereplacementoperationtoterminateunsuccessfully.
Youcandisablethelockingoftherunningconfigurationbyusingthenolockkeywordwhenissuingtheconfigurereplacecommand.
Therunningconfigurationlockisautomaticallyclearedattheendoftheconfigurationreplaceoperation.
Youcandisplayanylocksthatmaybecurrentlyappliedtotherunningconfigurationusingtheshowconfigurationlockcommand.
ConfigurationRollbackTheconceptofrollbackcomesfromthetransactionalprocessingmodelcommontodatabaseoperations.
Inadatabasetransaction,youmightmakeasetofchangestoagivendatabasetable.
Youthenmustchoosewhethertocommitthechanges(applythechangespermanently)ortorollbackthechangesConfigurationReplaceandConfigurationRollbackInformationAboutConfigurationReplaceandConfigurationRollback4(discardthechangesandreverttothepreviousstateofthetable).
Inthiscontext,rollbackmeansthatajournalfilecontainingalogofthechangesisdiscarded,andnochangesareapplied.
Theresultoftherollbackoperationistoreverttothepreviousstate,beforeanychangeswereapplied.
Theconfigurereplacecommandallowsyoutoreverttoapreviousconfigurationstate,effectivelyrollingbackchangesthatweremadesincethepreviousconfigurationstatewassaved.
Insteadofbasingtherollbackoperationonaspecificsetofchangesthatwereapplied,theCiscoIOSXEconfigurationrollbackcapabilityusestheconceptofrevertingtoaspecificconfigurationstatebasedonasavedCiscoIOSXEconfigurationfile.
Thisconceptissimilartothedatabaseideaofsavingacheckpoint(asavedversionofthedatabase)topreserveaspecificstate.
Iftheconfigurationrollbackcapabilityisdesired,youmustsavetheCiscoIOSXErunningconfigurationbeforemakinganyconfigurationchanges.
Then,afterenteringconfigurationchanges,youcanusethatsavedconfigurationfiletorollbackthechanges(usingtheconfigurereplacetarget-urlcommand).
Furthermore,sinceyoucanspecifyanysavedCiscoIOSXEconfigurationfileasthereplacementconfiguration,youarenotlimitedtoafixednumberofrollbacks,asisthecaseinsomerollbackmodelsbasedonajournalfile.
ConfigurationRollbackConfirmedChangeTheConfigurationRollbackConfirmedChangefeatureenablesanaddedcriteriaofaconfirmationtoconfigurationchanges.
Thisfunctionalityenablesarollbacktooccurifaconfirmationoftherequestedchangesisnotreceivedinaconfiguredtimeframe.
Commandfailurescanalsobeconfiguredtotriggeraconfigurationrollback.
Thefollowingstepsoutlinehowthisprocessisachieved:1.
Whenenteringconfigurationmode,thisnewoptionallowsyoutorequestconfirmation(aconfirmationtimelimitmustbesupplied)oftheconfigurationchanges.
2.
Afterexitingconfigurationmode,youmustentertheconfirmationcommand.
Ifnoconfirmationisenteredwithintherequestedtimelimit,theconfigurationwillreverttoitspreviousstate.
BenefitsofConfigurationReplaceandConfigurationRollbackAllowsyoutoreverttoapreviousconfigurationstate,effectivelyrollingbackconfigurationchanges.
AllowsyoutoreplacethecurrentrunningconfigurationfilewiththestartupconfigurationfilewithouthavingtoreloadtherouterormanuallyundoCLIchangestotherunningconfigurationfile,thereforereducingsystemdowntime.
AllowsyoutoreverttoanysavedCiscoIOSXEconfigurationstate.
Simplifiesconfigurationchangesbyallowingyoutoapplyacompleteconfigurationfiletotherouter,whereonlythecommandsthatneedtobeaddedorremovedareaffected.
Whenusingtheconfigurereplacecommandasanalternativetothecopysource-urlrunning-configcommand,increasesefficiencyandpreventsriskofserviceoutagesbynotreapplyingexistingcommandsinthecurrentrunningconfiguration.
ConfigurationReplaceandConfigurationRollbackHowtoUseConfigurationReplaceandConfigurationRollback5HowtoUseConfigurationReplaceandConfigurationRollbackThissectioncontainsthefollowingprocedures:CreatingaConfigurationArchive,page5(optional)PerformingaConfigurationReplaceorConfigurationRollbackOperation,page7(required)MonitoringandTroubleshootingtheConfigurationReplaceandConfigurationRollbackFeature,page9(optional)CreatingaConfigurationArchiveNoprerequisiteconfigurationisneededtousetheconfigurereplacecommand.
UsingtheconfigurereplacecommandinconjunctionwiththeCiscoIOSXEconfigurationarchiveandthearchiveconfigcommandisoptionalbutofferssignificantbenefitforconfigurationrollbackscenarios.
Beforeusingthearchiveconfigcommand,theconfigurationarchivemustbeconfigured.
Performthistasktoconfigurethecharacteristicsoftheconfigurationarchive.
SUMMARYSTEPS1.
enable2.
configureterminal3.
archive4.
pathurl5.
maximumnumber6.
time-periodminutes7.
end8.
archiveconfigDETAILEDSTEPSCommandorActionPurposeStep1enableExample:Router>enableEnablesprivilegedEXECmode.
Enteryourpasswordifprompted.
Step2configureterminalExample:Router#configureterminalEntersglobalconfigurationmode.
Step3archiveExample:Router(config)#archiveEntersarchiveconfigurationmode.
ConfigurationReplaceandConfigurationRollbackHowtoUseConfigurationReplaceandConfigurationRollback6Step4pathurlExample:Router(config-archive)#pathbootflash:myconfigSpecifiesthelocationandfilenameprefixforthefilesintheCiscoIOSXEconfigurationarchive.
TheurlargumentisaURL(accessiblebytheCiscoIOSXEfilesystem)usedforsavingarchivefilesoftherunningconfigurationfileintheCiscoIOSXEconfigurationarchive.
Youcansetupanarchiveonanyfilesystemthatyourplatformsupports(seethe"ConfigurationArchive"sectiononpage2).
NoteIfadirectoryisspecifiedinthepathinsteadoffile,thedirectorynamemustbefollowedbyaforwardslashasfollows:pathflash:/directory/.
Theforwardslashisnotnecessaryafterafilename,onlywhenspecifyingadirectory.
Step5maximumnumberExample:Router(config-archive)#maximum14(Optional)SetsthemaximumnumberofarchivefilesoftherunningconfigurationtobesavedintheCiscoIOSXEconfigurationarchive.
ThenumberargumentisthemaximumnumberofarchivefilesoftherunningconfigurationtobesavedintheCiscoIOSXEconfigurationarchive.
Validvaluesarefrom1to14.
Thedefaultis10.
NoteBeforeusingthiscommand,youmustconfigurethepathcommandtospecifythelocationandfilenameprefixforthefilesintheCiscoIOSXEconfigurationarchive.
Step6time-periodminutesExample:Router(config-archive)#time-period10(Optional)SetsthetimeincrementforautomaticallysavinganarchivefileofthecurrentrunningconfigurationintheCiscoIOSXEconfigurationarchive.
Theminutesargumentspecifieshowoften,inminutes,toautomaticallysaveanarchivefileofthecurrentrunningconfigurationintheCiscoIOSXEconfigurationarchive.
NoteBeforeusingthiscommand,youmustconfigurethepathcommandtospecifythelocationandfilenameprefixforthefilesintheCiscoIOSXEconfigurationarchive.
Step7endExample:Router(config-archive)#endExitstoprivilegedEXECmode.
Step8archiveconfigExample:Router#archiveconfigSavesthecurrentrunningconfigurationfiletotheconfigurationarchive.
NoteThepathcommandmustbeconfiguredbeforeusingthiscommand.
CommandorActionPurposeConfigurationReplaceandConfigurationRollbackHowtoUseConfigurationReplaceandConfigurationRollback7PerformingaConfigurationReplaceorConfigurationRollbackOperationPerformthistasktoreplacethecurrentrunningconfigurationfilewithasavedCiscoIOSXEconfigurationfile.
NoteYoumustcreateaconfigurationarchivebeforeperformingthisprocedure.
SeeCreatingaConfigurationArchive,page5fordetailedsteps.
Thefollowingproceduredetailshowtoreturntothatarchivedconfigurationintheeventofaproblemwiththecurrentrunningconfiguration.
SUMMARYSTEPS1.
enable2.
configurereplacetarget-url[nolock][list][force][ignorecase][reverttrigger[error][timerminutes]|timeminutes]3.
configurerevert{now|timer{minutes|idleminutes}}4.
configureconfirm5.
exitConfigurationReplaceandConfigurationRollbackHowtoUseConfigurationReplaceandConfigurationRollback8DETAILEDSTEPSCommandorActionPurposeStep1enableExample:Router>enableEnablesprivilegedEXECmode.
Enteryourpasswordifprompted.
Step2configurereplacetarget-url[nolock][list][force][ignorecase][reverttrigger[error][timerminutes]|timeminutes]Example:Router#configurereplacebootflash:myconfig-1listtime30ReplacesthecurrentrunningconfigurationfilewithasavedCiscoIOSXEconfigurationfile.
Thetarget-urlargumentisaURL(accessiblebytheCiscoIOSXEfilesystem)ofthesavedCiscoIOSXEconfigurationfilethatistoreplacethecurrentrunningconfiguration,suchastheconfigurationfilecreatedusingthearchiveconfigcommand.
ThelistkeyworddisplaysalistofthecommandlinesappliedbytheCiscoIOSXEsoftwareparserduringeachpassoftheconfigurationreplaceoperation.
Thetotalnumberofpassesperformedisalsodisplayed.
TheforcekeywordreplacesthecurrentrunningconfigurationfilewiththespecifiedsavedCiscoIOSXEconfigurationfilewithoutpromptingyouforconfirmation.
Thetimeminuteskeywordandargumentspecifythetime(inminutes)withinwhichyoumustentertheconfigureconfirmcommandtoconfirmreplacementofthecurrentrunningconfigurationfile.
Iftheconfigureconfirmcommandisnotenteredwithinthespecifiedtimelimit,theconfigurationreplaceoperationisautomaticallyreversed(inotherwords,thecurrentrunningconfigurationfileisrestoredtotheconfigurationstatethatexistedpriortoenteringtheconfigurereplacecommand).
Thenolockkeyworddisablesthelockingoftherunningconfigurationfilethatpreventsotherusersfromchangingtherunningconfigurationduringaconfigurationreplaceoperation.
Thereverttriggerkeywordssetthefollowingtriggersforrevertingtotheoriginalconfiguration:–error—Revertstotheoriginalconfigurationuponerror.
–timerminutes—Revertstotheoriginalconfigurationifspecifiedtimeelapses.
Theignorecasekeywordallowstheconfigurationtoignorethecaseoftheconfirmationcommand.
ConfigurationReplaceandConfigurationRollbackHowtoUseConfigurationReplaceandConfigurationRollback9MonitoringandTroubleshootingtheConfigurationReplaceandConfigurationRollbackFeaturePerformthistasktomonitorandtroubleshoottheConfigurationReplaceandConfigurationRollbackfeature.
SUMMARYSTEPS1.
enable2.
showarchive3.
debugarchiveversioning4.
debugarchiveconfigtimestamp5.
exitDETAILEDSTEPSStep1enableUsethiscommandtoenableprivilegedEXECmode.
Enteryourpasswordifprompted.
Forexample:Router>enableRouter#Step2showarchiveStep3configurerevert{now|timer{minutes|idleminutes}}Example:Router#configurerevertnow(Optional)Tocancelthetimedrollbackandtriggertherollbackimmediately,ortoresetparametersforthetimedrollback,usetheconfigurerevertcommandinprivilegedEXECmode.
now—Triggerstherollbackimmediately.
timer—Resetstheconfigurationreverttimer.
–Usetheminutesargumentwiththetimerkeywordtospecifyanewreverttimeinminutes.
–Usetheidlekeywordalongwithatimeinminutestosetthemaximumallowabletimeperiodofnoactivitybeforerevertingtothesavedconfiguration.
Step4configureconfirmExample:Router#configureconfirm(Optional)ConfirmsreplacementofthecurrentrunningconfigurationfilewithasavedCiscoIOSXEconfigurationfile.
NoteUsethiscommandonlyifthetimesecondskeywordandargumentoftheconfigurereplacecommandarespecified.
Step5exitExample:Router#exitExitstouserEXECmode.
CommandorActionPurposeConfigurationReplaceandConfigurationRollbackHowtoUseConfigurationReplaceandConfigurationRollback10UsethiscommandtodisplayinformationaboutthefilessavedintheCiscoIOSXEconfigurationarchive.
Forexample:Router#showarchiveTherearecurrently1archiveconfigurationssaved.
Thenextarchivefilewillbenamedbootflash:myconfig-2Archive#Name01bootflash:myconfig-1ConfigurationExamplesforConfigurationReplaceandConfigurationRollbackThissectionprovidesthefollowingconfigurationexamples:CreatingaConfigurationArchive:Example,page12ReplacingtheCurrentRunningConfigurationwithaSavedCiscoIOSXEConfigurationFile:Example,page12RevertingtotheStartupConfigurationFile:Example,page13PerformingaConfigurationReplaceOperationwiththeconfigureconfirmCommand:Example,page13PerformingaConfigurationRollbackOperation:Example,page13ConfigurationReplaceandConfigurationRollbackConfigurationExamplesforConfigurationReplaceandConfigurationRollback12CreatingaConfigurationArchive:ExampleThefollowingexampleshowshowtoperformtheinitialconfigurationoftheCiscoIOSXEconfigurationarchive.
Inthisexample,bootflash:myconfigisspecifiedasthelocationandfilenameprefixforthefilesintheconfigurationarchiveandavalueof10issetasthemaximumnumberofarchivefilestobesaved.
configureterminal!
archivepathbootflash:myconfigmaximum10endReplacingtheCurrentRunningConfigurationwithaSavedCiscoIOSXEConfigurationFile:ExampleThefollowingexampleshowshowtoreplacethecurrentrunningconfigurationwithasavedCiscoIOSXEconfigurationfilenamedbootflash:myconfig.
Theconfigurereplacecommandinteractivelypromptsyoutoconfirmtheoperation.
Router#configurereplacebootflash:myconfigThiswillapplyallnecessaryadditionsanddeletionstoreplacethecurrentrunningconfigurationwiththecontentsofthespecifiedconfigurationfile,whichisassumedtobeacompleteconfiguration,notapartialconfiguration.
EnterYifyouaresureyouwanttoproceed.
[no]:YTotalnumberofpasses:1RollbackDoneInthefollowingexample,thelistkeywordisspecifiedinordertodisplaythecommandlinesthatwereappliedduringtheconfigurationreplaceoperation:Router#configurereplacebootflash:myconfiglistThiswillapplyallnecessaryadditionsanddeletionstoreplacethecurrentrunningconfigurationwiththecontentsofthespecifiedconfigurationfile,whichisassumedtobeacompleteconfiguration,notapartialconfiguration.
EnterYifyouaresureyouwanttoproceed.
[no]:Y!
Pass1!
ListofCommands:nosnmp-servercommunitypublicrosnmp-servercommunitymystringroendTotalnumberofpasses:1RollbackDoneConfigurationReplaceandConfigurationRollbackConfigurationExamplesforConfigurationReplaceandConfigurationRollback13RevertingtotheStartupConfigurationFile:ExampleThefollowingexampleshowshowtoreverttotheCiscoIOSXEstartupconfigurationfileusingtheconfigurereplacecommand.
Thisexamplealsoshowstheuseoftheoptionalforcekeywordtooverridetheinteractiveuserprompt.
Router#configurereplacenvram:startup-configforceTotalnumberofpasses:1RollbackDonePerformingaConfigurationReplaceOperationwiththeconfigureconfirmCommand:ExampleThefollowingexampleshowstheuseoftheconfigurereplacecommandwiththetimesecondskeywordandargument.
Youmustentertheconfigureconfirmcommandwithinthespecifiedtimelimittoconfirmreplacementofthecurrentrunningconfigurationfile.
Iftheconfigureconfirmcommandisnotenteredwithinthespecifiedtimelimit,theconfigurationreplaceoperationisautomaticallyreversed(inotherwords,thecurrentrunningconfigurationfileisrestoredbacktotheconfigurationstatethatexistedpriortoenteringtheconfigurereplacecommand).
Router#configurereplacenvram:startup-configtime120Thiswillapplyallnecessaryadditionsanddeletionstoreplacethecurrentrunningconfigurationwiththecontentsofthespecifiedconfigurationfile,whichisassumedtobeacompleteconfiguration,notapartialconfiguration.
EnterYifyouaresureyouwanttoproceed.
[no]:YTotalnumberofpasses:1RollbackDoneRouter#configureconfirmPerformingaConfigurationRollbackOperation:ExampleThefollowingexampleshowshowtomakechangestothecurrentrunningconfigurationandthenrollbackthechanges.
Aspartoftheconfigurationrollbackoperation,youmustsavethecurrentrunningconfigurationbeforemakingchangestothefile.
Inthisexample,thearchiveconfigcommandisusedtosavethecurrentrunningconfiguration.
Thegeneratedoutputoftheconfigurereplacecommandindicatesthatonlyonepasswasperformedtocompletetherollbackoperation.
NoteBeforeusingthearchiveconfigcommand,youmustconfigurethepathcommandtospecifythelocationandfilenameprefixforthefilesintheCiscoIOSXEconfigurationarchive.
Youfirstsavethecurrentrunningconfigurationintheconfigurationarchiveasfollows:archiveconfigYouthenenterconfigurationchangesasshowninthefollowingexample:configureterminal!
usernetops2passwordrainConfigurationReplaceandConfigurationRollbackAdditionalReferences14usernetops3passwordsnowexitAfterhavingmadechangestotherunningconfigurationfile,assumeyounowwanttorollbackthesechangesandreverttotheconfigurationthatexistedbeforethechangesweremade.
Theshowarchivecommandisusedtoverifytheversionoftheconfigurationtobeusedasareplacementfile.
Theconfigurereplacecommandisthenusedtoreverttothereplacementconfigurationfileasshowninthefollowingexample:Router#showarchiveTherearecurrently1archiveconfigurationssaved.
Thenextarchivefilewillbenamedbootflash:myconfig-2Archive#Name01bootflash:myconfig-1CCDP,CCIE,CCIP,CCNA,CCNP,CCSP,CCVP,Cisco,theCiscoCertifiedInternetworkExpertlogo,CiscoIOS,CiscoPress,CiscoSystems,CiscoSystemsCapital,theCiscoSystemslogo,CiscoUnity,CollaborationWithoutLimitation,EtherFast,EtherSwitch,EventCenter,FastStep,FollowMeBrowsing,FormShare,GigaDrive,HomeLink,InternetQuotient,IOS,iPhone,iQuickStudy,IronPort,theIronPortlogo,LightStream,Linksys,MediaTone,MeetingPlace,ConfigurationVersioningCiscoIOSXERelease2.
1TheConfigurationVersioningfeatureallowsyoutomaintainandmanagebackupcopiesoftheCiscoIOSXErunningconfigurationonoroffthedevice.
TheConfigurationReplacefeatureusestheConfigurationVersioningfeaturetoprovidearollbacktoasavedcopyoftherunningconfiguration.
InCiscoIOSXERelease2.
1,thisfeaturewasintroducedonCiscoASR1000SeriesRouters.
ExclusiveConfigurationChangeAccessCiscoIOSXERelease2.
1TheExclusiveConfigurationChangeAccessfeature(alsocalledthe"ConfigurationLock"feature)allowsyoutohaveexclusivechangeaccesstotheCiscoIOSXErunningconfiguration,preventingmultipleusersfrommakingconcurrentconfigurationchanges.
ThefollowingcommandwasmodifiedbythisfeatureandappliestotheConfigurationReplaceandConfigurationRollbackfeature:showconfigurationlock.
Refertotheseparatemodule,ExclusiveConfigurationChangeAccessandAccessSessionLocking,fordetailsConfigurationRollbackConfirmedChangeCiscoIOSXERelease2.
1TheConfigurationRollbackConfirmedChangefeatureallowsconfigurationchangestobeperformedwithanoptionalrequirementthattheybeconfirmed.
Ifthisconfirmationisnotreceived,theconfigurationisreturnedtothestatepriortothechangesbeingapplied.
Thismechanismprovidesasafeguardagainstinadvertentlossofconnectivitybetweenanetworkdeviceandtheuserormanagementapplicationduetoconfigurationchanges.
InCiscoIOSXERelease2.
1,thisfeaturewasintroducedonCiscoASR1000SeriesRouters.
Thefollowingsectionsprovideinformationaboutthisfeature:ConfigurationRollbackConfirmedChange,page4PerformingaConfigurationReplaceorConfigurationRollbackOperation,page7Thefollowingcommandsweremodifiedbythisfeature:configureconfirm,configurereplace,configurerevert,configureterminalTable1FeatureInformationforConfigurationReplaceandConfigurationRollback(continued)FeatureNameReleasesFeatureInformationConfigurationReplaceandConfigurationRollbackFeatureInformationforConfigurationReplaceandConfigurationRollback18MeetingPlaceChimeSound,MGX,Networkers,NetworkingAcademy,NetworkRegistrar,PCNow,PIX,PowerPanels,ProConnect,ScriptShare,SenderBase,SMARTnet,SpectrumExpert,StackWise,TheFastestWaytoIncreaseYourInternetQuotient,TransPath,WebEx,andtheWebExlogoareregisteredtrademarksofCiscoSystems,Inc.
and/oritsaffiliatesintheUnitedStatesandcertainothercountries.
Allothertrademarksmentionedinthisdocumentorwebsitearethepropertyoftheirrespectiveowners.
TheuseofthewordpartnerdoesnotimplyapartnershiprelationshipbetweenCiscoandanyothercompany.
(0812R)AnyInternetProtocol(IP)addressesusedinthisdocumentarenotintendedtobeactualaddresses.
Anyexamples,commanddisplayoutput,andfiguresincludedinthedocumentareshownforillustrativepurposesonly.
AnyuseofactualIPaddressesinillustrativecontentisunintentionalandcoincidental.
2003-2009CiscoSystems,Inc.
Allrightsreserved.
vpsdime：VPS内存/2核/VPS,4G内存/2核/50gSSD/2T流量/达拉斯机房达拉斯机房，新产品系列-Windows VPS
vpsdime上了新产品系列-Windows VPS，配置依旧很高但是价格依旧是走低端线路。或许vpsdime的母公司Nodisto IT想把核心产品集中到vpsdime上吧，当然这只是站长个人的猜测，毕竟winity.io也是专业卖Windows vps的，而且也是他们自己的品牌。vpsdime是一家新上来不久的奇葩VPS提供商，实际是和backupspy以及crowncloud等都是同一家公司...
MechanicWeb免费DirectAdmin/异地备份
MechanicWeb怎么样？MechanicWeb好不好？MechanicWeb成立于2008年，目前在美国洛杉矶、凤凰城、达拉斯、迈阿密、北卡、纽约、英国、卢森堡、德国、加拿大、新加坡有11个数据中心，主营全托管型虚拟主机、VPS主机、半专用服务器和独立服务器业务。MechanicWeb只做高端的托管vps，这次MechanicWeb上新Xeon W-1290P处理器套餐，基准3.7GHz最高...
创梦网络-四川一手资源高防大带宽云服务器,物理机租用,机柜资源,自建防火墙,雅安最高单机700G防护,四川联通1G大带宽8.3W/年,无视UDP攻击,免费防CC
? ? ? ?创梦网络怎么样，创梦网络公司位于四川省达州市，属于四川本地企业，资质齐全，IDC/ISP均有，从创梦网络这边租的服务器均可以****，属于一手资源，高防机柜、大带宽、高防IP业务，另外创梦网络近期还会上线四川联通大带宽,四川联通高防IP，一手整CIP段，四川电信，联通高防机柜，CN2专线相关业务。成都优化线路，机柜租用、服务器云服务器租用，适合建站做游戏，不须要在套CDN，全国访问快...
ccdp为你推荐
-
苏州商标注册在江苏怎么注册商标啊??赵雨润星辰变电影是真的启动了吗？vista系统重装怎样重装vista系统spgnux思普操作系统怎么样云播怎么看片云播看不了视频怎么在qq空间里添加背景音乐怎么在QQ空间里免费添加背景音乐？？？？网易公开课怎么下载手机上的网易公开课的付费课程怎么下载？？？？？？保护气球气球保护液可以用什么来代替？宕机宕机是什么意思机械键盘轴大家觉得机械键盘什么轴最舒服