Sierra Wireless RAVEN 20070914 User Manual Page 87

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Rev 3.0B Feb.08 82
9
9: SNMP : Simple Network
Management Protocol
SNMP Configuration
SNMP MIB Definition
Sample
TheSimpleNetworkManagementProtocol(SNMP)was
designedtoallowremotemanagementandmonitoringofa
varietyofdevicesfromacentrallocation.TheSNMP
managementsystemisgenerallycomposedofagents(suchas
yourRaven,arouter,aUPS,awebserver,afileserver,orother
computerequipment)and
aNetworkManagementStation
(NMS)whichmonitorsalltheagentsonaspecificnetwork.
Usingthemanagementinformationbase(MIB),anNMScan
includereporting,networktopologymapping,toolstoallow
trafficmonitoringandtrendanalysis,anddevicemonitoring.
AuthenticationensuresSNMPmessagescomingfromthe
agent,suchastheRaven,havenotbeenmodifiedandthe
agentmaynotbequeriedbyunauthorizedusers.SNMPv3
usesaUserBasedSecurityModel(USM)toauthenticateand,
ifdesiredorsupported,messageencryption. USMusesauser
nameandpasswordspecific
toeachdevice.
TheRavencanbeconfiguredasanSNMPagentandsupports
SNMPv2candSNMPv3.
Management Information Base (MIB)
Themanagementinformationbase(MIB)isatypeofdatabase
usedtocompiletheinformationfromthevariousSNMP
agents.Reportsfromvariousagents,suchastheRaven,are
sentasdatainformdesignedtobeparsedbytheNMSintoits
MIB.Thedataishierarchicalwithentriesaddressed
through
objectidentifiers.
SNMP Traps
SNMPtrapsarealertsthatcanbesentfromthemanaged
devicetotheNetworkManagementStationwhenanevent
happens.YourRaveniscapableofsendingthelinkUptrap
whenthenetworkconnectionbecomesavailable.
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