Installation Manual

IBRInstallationGuide
 Page35of40 Doc#770‐00001‐13
 Sept.21,2014
Payloadframesmaybedroppedbytheswitch(inIBR)duetoafullqueueorbytheradioduetoerrors.
Framesdroppedovertheairaremeasuredatthereceiver.IBRreportsswitchandradiodropsinswitch
countersandradiocountersrespectivelythatcanbeviewedusingCLI,SNMPandGUIasdiscussedbelow.
a. Payloaddroppedbytheswitch.
CLI:
IBR101#showinterfacescountersdrops
SNMP:
IF‐MIBifInDiscardsandifInErrors
InErrorsshowthepacketsdiscardedbecausetheyfailCRCcheck.InDiscardsshowsthepackets
thatweredroppedbecausetheoutputqueuewasfull.
b. Payloaddroppedovertheair.
Use
CLItoshowpayloadpacketerrorrateandcounters:
IBR101#showinterfacesradio0status 
IBR101#showinterfacesradio0counters
UsingSNMP,payloadpacketerrorcanbeseenunderFBN‐RADIO‐MIBibrRxPktDropRate
UsingtheWebUI,payloadpacketerrorrateisshownontheMonitor/Dashboardscreen.
c. Framesdroppedbytheswitch.
Theswitchwilldropframeswhenthetransmitqueuefills.ThereisonetransmitqueueforeachCOS
level.TransmitqueueswillfillwhenevertheofferedloadexceedseithertheIBR‐imposedthroughput
limitortheover‐the‐aircapacity.TheIBR‐imposedthroughputlimitmightbeconfiguredviaapolicy
map.Policymapconfigurationscanbedisplayedwiththefollowingcommand:
IBR101#showrunning‐config
Todetermineiftheofferedloadisclosetothethroughputuseonofthefollowing:
CLI:
IBR101#showinterfacesradio0status
Compare“Payload”toRXMCSS0+RXMCSS1.
UsingWebUI,viewtheMonitor/Radio/Reportscreentoview:
MCSRXTheoretical&RXActualThroughput
MCSTXTheoretical&TXActualThroughput
UsingSNMP,FBN‐RADIO‐MIB:
ibrRxTputRateandibrTxTputRatewillshowthepayloadthroughput.
ibrRxTpS0+ibrRxTpS1andibrTxTpS0+ibrTxTpS1
willshowcarryingcapacity.
ReturntoTableofContents
A7. CommunicatingWithIBRViaCommandLineInterface(CLI)
CLIcanbeusedtotroubleshootandconfigureIBR.ThefollowingarethestepsforloggingontoIBR.IfIBR
haspreviouslybeenconfigured,thefieldengineerwillneedtoknowthevalidusernameandpasswordto
use.
a. TocommunicatewithIBR,logontoIBRviaoneofthefollowingoptions:
 SerialConsolew/settings