User`s guide

VMware, Inc. 181
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Stage Managerusesnetworkfencing,anarchitecturethatisolatesor“fences”virtual
machineconfigurationswhileallowingfullnetworkaccess.Fencingenablesyouto
workwithliveinstancesofthesameconfigurationonthesamenetwork.
Forexample,whenyouwanttohaveconcurrentdevelopmentortestingonthesame
configuration,youcan
duplicateorclonetheconfigurationandavoidanyIPorMAC
addresscollisionwiththistechnology.
Thisappendixincludesthesetopics:
 “WhentoFenceConfigurations”onpage 181
 “FencingOverview”onpage 182
 “ViewingVirtualSwitchesforFences”onpage 186
When to Fence Configurations
Typically,youwanttoenablenetworkfencingunderthesecircumstances:
 Youhaveaconfigurationwithoneormoreservers,andyouanticipatecloningthe
configurationnumeroustimes.
 Youhaveaconfigurationinvolvingadifficultandcomplexsetup,andcloningthe
configurationisaneasierroutethanrepeatingthesetup.
Withfencing,engineerscanrunmultiple,independenttestsonaconfiguration
deployedmultipletimes.Fencingisparticularlyusefulwhenadeveloperneedsto
examineabugwithoutinterruptingor
stoppingongoingtestingonaconfiguration.
Stage Manageralsoenablesyoutoreproducethebugatalatertimeifthedeveloperis
unavailable.
Network Fencing
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