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Sierra Raven EDGE Network Card User Manual

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Rev 3.0B Feb.08 69

9

9: SNMP : Simple Network

Management Protocol

• SNMP Configuration

• SNMP MIB Definition

Sample

TheSimpleNetworkManagementProtocol(SNMP)was

designedtoallowremotemanagementandmonitoringofa

varietyofdevicesfromacentrallocation.TheSNMP

managementsystemisgenerallycomposedofagents(suchas

yourRaven,arouter,aUPS,awebserver,afileserver,orother

computerequipment)and

aNetworkManagementStation

(NMS)whichmonitorsalltheagentsonaspecificnetwork.

Usingthemanagementinformationbase(MIB),anNMScan

includereporting,networktopologymapping,toolstoallow

trafficmonitoringandtrendanalysis,anddevicemonitoring.

AuthenticationensuresSNMPmessagescomingfromthe

agent,suchastheRaven,havenotbeenmodifiedandthe

agentmaynotbequeriedbyunauthorizedusers.SNMPv3

usesaUser‐BasedSecurityModel(USM)toauthenticateand,

ifdesiredorsupported,messageencryption. USMusesauser

nameandpasswordspecific

toeachdevice.

TheRavencanbeconfiguredasanSNMPagentandsupports

SNMPv2candSNMPv3.

Management Information Base (MIB)

Themanagementinformationbase(MIB)isatypeofdatabase

usedtocompiletheinformationfromthevariousSNMP

agents.Reportsfromvariousagents,suchastheRaven,are

sentasdatainformdesignedtobeparsedbytheNMSintoits

MIB.Thedataishierarchicalwithentriesaddressed

through

objectidentifiers.

SNMP Traps

SNMPtrapsarealertsthatcanbesentfromthemanaged

devicetotheNetworkManagementStationwhenanevent

happens.YourRaveniscapableofsendingthelinkUptrap

whenthenetworkconnectionbecomesavailable.

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