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VMware, Inc. 83
Chapter 5 System Configuration
About SNMP and VMware Infrastructure
SimpleNetworkManagementProtocol(SNMP)allowsmanagementprogramsto
monitorandcontrolavarietyofnetworkeddevices.ManageddevicesrunSNMP
agents,whichcanprovideinformationtoamanagementprograminatleastoneofthe
followingways:
Inresponsetoagetoperation,whichisaspecificrequestforinformationfromthe
managementsystem.
Bysendinganotification,whichisanalertsentbytheSNMPagenttonotifythe
managementsystemofaparticulareventorcondition.
VirtualCenterServer,ESXServer3i,andESXServer3eachhaveanSNMPagent.The
agentsprovidedwitheachproducthavedifferingcapabilities.
About MIB Files
(S
EE
U
PDATE
)
ManagementInformationBase(MIB)filesdefinetheinformationthatcan
beprovidedbymanageddevices.TheMIBfilescontainobjectidentifiers(OIDs)and
variablesarrangedinahierarchy.Currently,VMwareprovidestheMIBfileslistedin
Table 51forusewithVI3.
Table 5-1. VMware MIB Files
MIB File Description
VMWARE-ROOT-MIB.mib ContainsVMware’senterpriseOIDandtoplevelOID
assignments.
VMWARE-ENV-MIB.mib Definesvariablesandtraptypesusedtoreporthardware
environmentstatus.(ESXServer3ihostsonly)
VMWARE-PRODUCTS-MIB.mib DefinesOIDstouniquelyidentifyeachSNMPagentoneach
VMwareplatform.
VMWARE-RESOURCES-MIB.mib Definesvariablesusedtoreportinformationonresource
usageoftheVMkernel,
includingmemory,CPU,anddisk
utilization.
VMWARE-SYTEM-MIB.mib TheVMWARE-SYSTEM-MIB.mibfileisobsolete.Usethe
SNMPv2MIBtoobtaininformationfromsysDescr.0and
sysObjecID.0.
VMWARE-TC-MIB.mib DefinescommontextualconventionsusedbyVMwareMIB
files.
VMWARE-TRAPS-MIB.mib DefinesvirtualmachinepowerrelatedtrapssentbyESX
ServerandtrapssentbyVirtualCenter.
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