Zte ZXR10 5900E Series User manual

ZXR105900ESeries
Easy-MaintenanceMPLSRoutingSwitch
CongurationGuide(QoS)
Version:3.00.11
ZTECORPORATION
No.55,Hi-techRoadSouth,ShenZhen,P .R.China
Postcode:518057
Tel:[phone]
Fax:[phone]
URL:http://support.zte.com.cn
E-mail:[email protected]

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RevisionHistory
RevisionNo.RevisionDateRevisionReason
R1.02015–01–15Firstedition
SerialNumber:SJ-20150114102049-008
PublishingDate:2015-01-15(R1.0)
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Contents
AboutThisManual.........................................................................................I
Chapter1PortQoSConguration............................................................1-1
1.1PortQoSOverview.............................................................................................1-1
1.2ConguringPortQoS.........................................................................................1-4
1.3MaintainingthePortQoS..................................................................................1-10
1.4PortQoSCongurationExample.......................................................................1-14
Chapter2FlowQoSConguration...........................................................2-1
2.1Trafc-basedQoSOverview...............................................................................2-1
2.2ConguringFlowQoS.........................................................................................2-5
2.3FlowQoSMaintenance.....................................................................................2-11
2.4FlowQoSCongurationExample......................................................................2-12
2.4.1TrafcLimitandStatisticsCongurationExample.....................................2-12
2.4.2PolicyRoutingCongurationExample.....................................................2-16
2.4.3HierarchyMeterCongurationExample...................................................2-21
2.4.4TrafcMirroringCongurationExample...................................................2-23
2.4.5ConguringtheTrafcLimitBasedonthevlan.........................................2-25
Figures.............................................................................................................I
Glossary........................................................................................................III
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AboutThisManual
Purpose
ThismanualistheZXR105900ESeries(V3.00.11)Easy-MaintenanceMPLSRouting
SwitchCongurationGuide(QoS),whichisapplicabletotheZXR105900E(V3.00.11)
seriesswitches.
IntendedAudience
Thismanualisintendedfor:
lNetworkplanningengineer
lDebuggingengineer
lAttendant
WhatIsinThisManual
Thismanualcontainsthefollowingchapters:
Chapter1,PortQoS
Conguration
ProvidestheoverviewandprinciplesofPortQoSconguration,related
congurationandmaintenancecommands,andcongurationexamples.
Chapter2,FlowQoS
Conguration
ProvidestheoverviewandprinciplesofFlowQoSconguration,related
congurationandmaintenancecommands,andcongurationexamples.
Conventions
Thismanualusesthefollowingtypographicalconventions:
ItalicsVariablesincommands.Itmayalsorefertootherrelatedmanualsanddocuments.
BoldMenus,menuoptions,functionnames,inputelds,optionbuttonnames,checkboxes,
drop-downlists,dialogboxnames,windownames,parameters,andcommands.
Constant
width
Textthatyoutype,programcodes,lenames,directorynames,andfunctionnames.
[]Optionalparameters.
{}Mandatoryparameters.
|Separatesindividualparameterinseriesofparameters.
Note:providesadditionalinformationaboutacertaintopic.
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Chapter1
PortQoSConguration
TableofContents
PortQoSOverview.....................................................................................................1-1
ConguringPortQoS.................................................................................................1-4
MaintainingthePortQoS.........................................................................................1-10
PortQoSCongurationExample..............................................................................1-14
1.1PortQoSOverview
IntroductiontoPortQoS
InatraditionalInternetProtocol(IP)network,allpacketsareprocessedwithoutany
difference.RoutersusetheFirstInFirstOut(FIFO)policytoprocesspacketsandthe
best-effortprincipletotransmitpacketstodestinations.However,therouterscannot
guaranteetheperformancesuchaspackettransmissionreliability,delay,andsoon.
WiththedevelopmentofnewapplicationsinanIPnetwork,usershavemorerequirements
forservicequality.Thebest-effortinatraditionalIPnetworkcannotmeettherequirements
ofapplications.Forexample,intheVoIPservice,ifthetransmissiondelayofpacketsis
toolong,userscannotbearit.Afeasiblemethodtosolvetheproblemistoprovidethe
QualityofService(QoS)abilityfortheInternet.
QoSisusedtoprovidedifferentservicequalities(suchasprovidingaspecialbandwidth,
reducingthepacketlossrate,delay,anddelayjitter)inaccordancewithdifferent
requirementsofapplications.
PortQoSPrinciple
TheportQoSisanimportantpartoftheQoSfunction.ItisaQoSsub-modulecongured
onthebasisofports.Themainfunctionsareasfollows:
lTrafclimit
Thetrafclimitfunctionbasedonportsistolimitthetrafcrateofthisport.Forthe
trafcexceedingthecommittedrate,performthefollowingoperations:
àDroporforwardpackets(Redpacketsaredropped,andyellowpacketsare
allowedbydefault.)
àModifytheDSCPvalueofapacket.
àModifythedroppriority.Apacketwithahigherdropprioritywillbedroppedrst.
Thedefaultpriorityis3foraredpacket,2forayellowpacket,and1foragreen
packet.
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àThetrafclimitbasedontheportdoesnotcauseanyextradelay.
ThetrafclimitbasedontheportusestheMMUregister.Ifitisnotsupportedbythe
ACLrule,extrapacketstothisportwillbedroppedinthedefaultdropmode.Thatis
tosay,thecurrentpacketswillbedroppedifnotokenbucketisobtained.
Aftertherateislimited,thepacketwillbecoloredinsrTCMBLINDmode.TheEBS
isequaltotheCBS,sothereareonlyredandgreenpackets,andnoyellowpackets.
Ifatokenisobtainedfromthetokenbucket,thepacketwillbegreen.Ifnotokenis
obtainedfromthetokenbucket,thepacketwillbered.Theredpacketsaredropped
bydefault,andthegreenpacketsareallowed.
lTrafcshaping
Thetrafcshapingfunctionlimitstherateofpacketssentfromtheport.Inthiscase,
packetscanbesentoutatanaveragespeed.Thetrafcshapingfunctionismainly
usedtomatchtherateofpacketswiththerateofdownstreamdevicestoavoidpacket
congestionandpacketloss.
Thedifferencebetweentrafcshapingandtrafclimitisasfollows:Thetrafcshaping
functionbuffersapacketthatexceedsthecommittedrate,andthensendsthepacket
atanaveragespeed.However,thetrafclimitfunctiondiscardsthepacketbecause
thepacketexceedsthecommittedrate.Thetrafcshapingfunctioncausesthedelay,
butthetrafclimitfunctiondoesnotcauseanydelay.
ThetrafcshapingfunctionisalsoimplementedthroughtheMMUregister.
lQueuescheduling
EachphysicalportoftheZXR105900Esupportseightoutputqueues(queue0-7)
whicharecalledCoSqueues.Theswitchperformstheoutputoperationonthe
ingressinaccordancewiththeCosqueuecorrespondingto802.1pofpackets.
Whennetworkcongestionoccurs,multiplepacketsmayoccupytheresources.This
problemissolvedthroughthequeueschedulingfunction.
TheZXR105900Esupportsthreetypesofqueuescheduling,includingStrictPriority
(SP),WeightedRoundRobin(WRR),andDecitWeightedRoundRobin(DWRR).
Eightoutputqueuesofthisportusedifferentschedulingmodes.
àStrictPriority(SP)
Inthismode,thepacketineachqueueisstrictlyscheduledinaccordancewiththe
priority.Thepacketsinthequeuewiththehighestprioritywillbescheduledrst.
Whenthepacketswiththehighestpriorityinthequeuearescheduledcompletely,
thepacketsinthequeuewithasecondhighestprioritywillbescheduledthen,
andsoon.
Thestrictpriorityschedulingensuresthatpacketsofkeyservicesareprocessed
rst.Inaddition,theQoSofkeyservicesareguaranteed.However,thequeue
withalowerprioritymayneverbeprocessed.
àWeightedRoundRobin(WRR)
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Chapter1PortQoSConguration
Thismodeensuresthateachqueuehasachancetobescheduled.Theweight
ofeachqueueisdifferent,sothetimeofeachqueuetobescheduledisdifferent.
Theweightreferstotheproportionofresourcesobtainedbyeachqueue.The
packetsinaqueuewithahigherprioritytakeprecedenceoverthatinaqueue
withalowerpriority.
àDecitWeightedRoundRobin(DWRR)
Thismodealsoensuresthateachqueuehasachancetobescheduled.The
weightofeachqueueisalsodifferentfromanotherqueue.Thedifference
betweenDWRRandWRRis:TheweightconguredinDWRRindicatesthe
scheduledbytesofeightqueuesduringeachscheduling(unit:kbyte),andthe
weightconguredinWRRindicatesthenumberofscheduledpacketsofeach
queueduringeachscheduling.So,thesizeofDWRRpacketshaslessinuence
onthebandwidth.
lDefaultpriority
Whenpacketcongestionoccurs,theswitchwilldiscardpacketsselectively.In
general,thisselectiverulereferstothedroppriority.Eachpackettotheportfromthe
egresswillbecoloredinaccordancewithitscarried802.1plabel(packetpriority).
Packetswithdifferentprioritieswillbecoloredgreen(low),yellow(middle),orred
(high)inaccordancewithacertainmappingrelationship.Packetsaredroppedin
accordancewiththecolorwhenqueuecongestionoccurs.Thecolorcanalsobe
usedbyotherdroppolicies.
Themappingtablebetweenthe802.1Puserpriorityandthelocaldroppriorityofa
switchmustbeset.
Whenaswitchreceivesapacket,itdeterminestheCoSvalueofthepacket.Fora
TAGpacket,theCoSvaluereferstothe802.1Puserpriorityinthepacket.Fora
non-TAGpacket,theswitchdeterminesthelocalpriorityofapacketinaccordance
withthedefaultlocalpriorityofthereceivingport,andthendeterminestheCoSvalue
ofthepacketinaccordancewiththerelationshipbetweenthelocalpriorityandthe
CoSvalue.Afterthat,themappingtabledeterminesthedroppriorityofthepacketin
accordancewiththeCoSvalue.Thedefaultvalueis0.
Thedroppriorityisconguredontheingressinterface.
lLocalpriority
Thelocalpriorityhereisdifferentfromthecommon"internalpriority"usedintheACL
rule.Thelocalpriorityhereisamappingrelationshipbetweenthe802.1ppacketand
eightCoSqueuesoftheegress.Thatistosay,802.1ppacketswithdifferentpriorities
(level0-7)willbesenttodifferentCoSqueuesforscheduling.
Thelocalprioritymappingisconguredontheingress.
Thelocalmappingrelationshipisvalidonlyforthelocalswitchingchip.Itbecomes
invalidwhentheingressusedforthemappingcongurationandtheegressusedfor
theschedulingarenotinthesameboardorthesameswitchingchip.
lTailDrop
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Thetaildroppolicyisusedfortheegressofaqueue.Thepacketisdroppedin
accordancewithitscolor.Threeparametersneedtobeset,includingCIR,CBS,and
EBS.
àWhenthequeuelengthexceedsthetotalthreshold,allpacketswillbedropped.
àWhenthequeuelengthexceedsthedropthresholdforyellowpackets,yellow
packetswillbedroppedatasetrate.
àWhenthequeuelengthexceedsthedropthresholdforredpackets,allred
packetswillbedropped.
lDSCPMapping
Whenapacketentersaninterface,thenewDSCPvalue,thepacketpriority,andthe
droppriorityofthepacketcanbesetinaccordancewiththeDSCPindex.Whenthe
DSCPmappingfunctionofthisportisenabled,theDSCPvalueisnotchanged,the
packetpriorityissettoDSCP/8,andthedroppriorityissetto0bydefault.
lBandwidthRestriction
Thebufferresourcesofaqueuearelimited,somultiplepacketsmayoccupythe
resourceswhennetworkcongestionoccurs.Whentheminimumbandwidthandthe
maximumbandwidtharecongured,thebandwidthobtainedbyeachqueueisnot
lessthantheminimumbandwidthandnotmorethanthemaximumbandwidthwhen
multiplepacketsseizeresources.Thisensuresthateachqueuehasachanceto
obtainthebandwidth.
lWeightedRandomEarlyDetection
TraditionaltaildropschemesmaycausealotofTCPmessagesbeingdroppedand
leadtoglobalTCPsynchronization.ButWeightedRandomEarlyDetection,amethod
generallyusedtoavoidcongestion,combinestheIPpriorityandrandomearly
detectionpolicyandprovidesdifferentservicesfordifferenttypesofservices.Groups
havinghigherprioritiesareprocessedrstandpacketsaredroppedrandomly.This
avoidsmultipleTCPlinksfromreducingthetransmissionspeedatthesametime.
1.2ConguringPortQoS
ConguringTrafcLimit
Tosetatrafclimit,performthefollowingstep:
CommandFunction
ZXR10(config-pm-qos)#traffic-limit<interface>rate-limit
<1-40000000>bucket-size<1-4096>
Setsthetrafclimit.
ConguringTrafcShaping
Tosettrafcshaping,performthefollowingsteps:
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Chapter1PortQoSConguration
CommandFunction
ZXR10(config-pm-qos)#traffic-shape<interface>data-limit
<64-40000000>burst-size<1-4096>
Setstrafcshaping.
Parameterdescriptionsareasfollows:
ParameterDescription
<interface>Interfacename.
data-limitKeyword,trafcshapingrate.
<64-40000000>Trafcshapingratevalueorqueuebandwidththreshold(in
Kbps).Interfaceboardswithdifferentmodelshavedifferent
minimumgranularity.
Fordetails,refertotheboardperformancespecications.
burst-sizeKeyword,thetokenbucketcapacity.
<1-4096>Tokenbucketcapacityvalue(Kbits).
ConguringQueueScheduling
Tocongurequeuescheduling,performthefollowingsteps:
CommandFunction
ZXR10(config-pm-qos)#queue-mode<interface>{wrr
<0-7><1-255>|dwrr<0-7><1-4080>}
Setsqueuescheduling.
Parameterdescriptionsareasfollows:
ParameterDescription
<interface>Interfacename.
{wrr|dwrr}Selectonefromtwoqueueschedulingmodes,bydefault,sp.
<0-7>Selectaqueuenumber.
<1-255>SelectaWRRschedulingfactor(weight).
<1-4080>SelectaDWRRschedulingfactor(weight).
ConguringDefaultPriority
Toconguredefaultpriority,performthefollowingsteps:
CommandFunction
ZXR10(config-pm-qos)#priority<interface><0-7>Setsthedefaultpriority.
Parameterdescriptionsareasfollows:
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ParameterDescription
<interface>Interfacename.
<0-7>PRIvalueinanuntagmessage.
Conguringdroppriority
Toconguredroppriority,performthefollowingsteps:
StepCommandFunction
1ZXR10(config-pm-qos)#cos-drop-map<0-2><0-2><0-2
><0-2><0-2><0-2><0-2><0-2>
Setsthedroppriority.
2ZXR10(config-pm-qos)#trust-cos-dp-map<interface>{
enable|disable}
Enablesordisablesthedrop
priority.
ParametersinStep1aredescribedasfollows:
ParameterDescription
<0-2>Droppriorityofmessageswithpri=0.0indicatesalowpriority,1indicates
amiddlepriority,and2indicatesahighpriority.
<0-2>Droppriorityofmessageswithpri=1.0indicatesalowpriority,1indicates
amiddlepriority,and2indicatesahighpriority.
<0-2>Droppriorityofmessageswithpri=2.0indicatesalowpriority,1indicates
amiddlepriority,and2indicatesahighpriority.
<0-2>Droppriorityofmessageswithpri=3.0indicatesalowpriority,1indicates
amiddlepriority,and2indicatesahighpriority.
<0-2>Droppriorityofmessageswithpri=4.0indicatesalowpriority,1indicates
amiddlepriority,and2indicatesahighpriority.
<0-2>Droppriorityofmessageswithpri=5.0indicatesalowpriority,1indicates
amiddlepriority,and2indicatesahighpriority.
<0-2>Droppriorityofmessageswithpri=6.0indicatesalowpriority,1indicates
amiddlepriority,and2indicatesahighpriority.
<0-2>Droppriorityofmessageswithpri=7.0indicatesalowpriority,1indicates
amiddlepriority,and2indicatesahighpriority.
ParametersinStep2aredescribedasfollows:
ParameterDescription
<interface>Interfacename.
{enable|disable}Enablesordisablesthedropprioritymappingfunction.
ConguringLocalPriority
Tocongurelocalpriority,performthefollowingsteps:
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Chapter1PortQoSConguration
StepCommandFunction
1ZXR10(config-pm-qos)#cos-local-map<0-7><0-7><0-7
><0-7><0-7><0-7><0-7><0-7>
Setsthelocalpriority.
2ZXR10(config-pm-qos)#trust-cos-lp-map<interface>{
enable|disable}
Enablesordisablesthelocal
priority.
ParametersinStep1aredescribedasfollows:
ParameterDescription
<0-7>Numberofthequeueformessageswithpri=0.
<0-7>Numberofthequeueformessageswithpri=1.
<0-7>Numberofthequeueformessageswithpri=2.
<0-7>Numberofthequeueformessageswithpri=3.
<0-7>Numberofthequeueformessageswithpri=4.
<0-7>Numberofthequeueformessageswithpri=5.
<0-7>Numberofthequeueformessageswithpri=6.
<0-7>Numberofthequeueformessageswithpri=7.
ParametersinStep2aredescribedasfollows:
ParameterDescription
<interface>Interfacename.
{enable|disable}Enablesordisablesthelocalprioritymappingfunction.
ConguringTailDrop
Toconguretaildrop,performthefollowingsteps:
StepCommandFunction
1ZXR10(config-pm-qos)#tail-drop<0-4>queue-id
<0-7><1-255><1-255><1-255>
Setsthetaildroptemplate.
2ZXR10(config-pm-qos)#drop-mode<interface>tail-drop
<0-4>
Setsthetaildrop.
ParametersinStep1aredescribedasfollows:
ParameterDescription
<0-4>SessionID.Onesessioncansendthetaildropparameters
ofmultiplequeues.
<0-7>Queuenumber.
<1-255>Totaldropthreshold.
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ZXR105900ESeriesCongurationGuide(QoS)
ParameterDescription
<1-255>Yellowmessagedropthreshold.
<1-255>Redmessagedropthreshold.
ParametersinStep2aredescribedasfollows:
ParameterDescription
<interface>Interfacename.
<0-4>SessionID.Selectaconguredtaildroptemplate.
ConguringDSCPMapping
TocongureDSCPmapping,performthefollowingsteps:
StepCommandFunction
1ZXR10(config-pm-qos)#conform-dscp<0-63><0-63><0
-7><0-2>
SetsDSCPmapping.
2ZXR10(config-pm-qos)#trust-dscp<interface>{enable
|disable}
EnablesordisablesDSCP
mapping.
ParametersinStep1aredescribedasfollows:
ParameterDescription
<0-63>ValueofthesourceDSCPcarriedinmessages.
<0-63>NewDSCPvaluecarriedinmessages.
<0-7>NewPRIvaluecarriedinmessages.
<0-2>Messagedroppriority.
ParametersinStep1aredescribedasfollows:
ParameterDescription
<interface>Interfacename.
{enable|disable}EnablesordisablestheDSCPmapping.
ConguringBandwidthLimit
Tocongurebandwidthlimit,performthefollowingsteps:
CommandFunction
ZXR10(config-pm-qos)#traffic-shape<interface>queue
<0-7>min-gua-datarate<64-40000000>max-datarate-limit
<64-40000000>
Setsthebandwidthlimit.
Parameterdescriptionsareasfollows:
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Chapter1PortQoSConguration
ParameterDescription
<interface>Interfacename.
queueKeyword,thequeuebandwidth.
<0-7>Queuenumber.
min-gua-datarateKeyword,theminimumqueuebandwidthguarantee.
max-datarate-limitKeyword,themaximumqueuebandwidthlimit.
<64-40000000>Trafcshapingrateorqueuebandwidthlimit(inKbps).
Interfacesofdifferentmodelshavedifferentgranularities.For
details,refertotheboardperformancespecications.
WRED
SettheWREDbyusingthefollowingcommandsontheZXR105900E:
CommandFunction
ZXR10(config-pm-qos)#wred<interface><0-7>{
byte-type|packet-type}{[green<green-min-thrd><
green-max-thrd><green-drop-rate>]|[yellow<yellow-min-thrd><
yellow-max-thrd><yellow-drop-rate>]|[red<red-min-thrd><
red-max-thrd><red-drop-rate>]|[non-tcp<non-tcp-min-thrd><
non-tcp-max-thrd><non-tcp-drop-rate>]}weight<0-15>[cap-aver
age]
SetstheportWRED.
Parameterdescriptionsareasfollows:
ParameterDescription
interfaceInterfacename.
<0-7>Queuenumber.
byte-typeQueueschedulingbasedonthenumberofbytes.
packet-typeQueueschedulingbasedonthenumberofpackets.
green-min-thrdAveragequeuethresholdatwhichgreenmessagedrop
starts,range:1–11264packetsor1–3047424bytes.
green-max-thrdAveragequeuethresholdatwhichallgreenmessagedrop
starts,range:1–11264packetsor1–3047424bytes.
green-drop-rateMaximumgreenmessagedropprobability,range:0-100.
yellow-min-thrdAveragequeuethresholdatwhichyellowmessagedrop
starts,range:1–11264packetsor1–3047424bytes.
yellow-max-thrdAveragequeuethresholdatwhichallyellowmessageare
dropped,range:1–11264packetsor1–3047424bytes.
yellow-drop-rateMaximumyellowmessagedropprobability,range:0-100.
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ParameterDescription
red-min-thrdAveragequeuethresholdatwhichredmessagedropstarts,
range:1–11264packetsor1–3047424bytes.
red-max-thrdAveragequeuethresholdatwhichallredmessageare
dropped,range:1–11264packetsor1–3047424bytes.
red-drop-rateMaximumredmessagedropprobability,range:0-100.
non-tcp-min-thrdAveragequeuethresholdatwhichnon-tcpmessagedrop
starts,range:1–11264packetsor1–3047424bytes.
non-tcp-max-thrdAveragequeuethresholdatwhichallnon-tcpmessageare
dropped,range:1–11264packetsor1–3047424bytes.
non-tcp-drop-rateMaximumnon-tcpmessagedropprobability,range:0-100.
weight<0-15>Weightofthecurrentqueuemappingtotheaveragequeue
throughlow-passlter,range:0–15.
cap-averageReplacetheaveragequeuelengthwiththecurrentqueue
lengthtocalculatethedropprobability.
1.3MaintainingthePortQoS
TomaintaintheportQoSontheZXR105900E,runthefollowingcommands:
CommandFunction
ZXR10#showrunning-configpm-qos|include
conform-dscp
Displaysvalidcongurationsofthedscp
mappingtable.
ZXR10#showrunning-configpm-qos|includetrust-dscpDisplaysthedscpmappingfunctionofan
interface.
ZXR10#showrunning-configpm-qos|includepriorityDisplaysthedefaultpriorityofaninterface.
ZXR10#showrunning-configpm-qos|include
queue-mode
Displaysthequeueschedulingconguration
ofaninterface.
ZXR10#showrunning-configpm-qos|include
traffic-limit
Displaysthetrafclimitcongurationonthe
ingressofaninterface.
ZXR10#showrunning-configpm-qos|include
traffic-shape
Displaysthetrafcshapingandqueue
bandwidthrestrictioncongurationonthe
egressofaninterface.
ZXR10#showrunning-configpm-qos|include
cos-local-map
Displaysthelocalprioritymappingtable.
ZXR10#showrunning-configpm-qos|include
trust-cos-lp-map
Displaysthelocalprioritymappingfunction
ofaninterface.
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CommandFunction
ZXR10#showrunning-configpm-qos|include
cos-drop-map
Displaysthedropprioritymappingtable.
ZXR10#showrunning-configpm-qos|include
trust-cos-dp-map
Displaysthedropprioritymappingfunctionof
aninterface.
ZXR10#showrunning-configpm-qos|includetail-dropDisplaysthetaildropcongurationofan
interface.
Adescriptionoftheparameterisasfollows:
ParameterDescription
includeKeywordsarenexttotheincludecommand.
lThefollowingisasampleoutputfromtheshowrunning-configpm-qos|includeconfo
rm-dscpcommand:
ZXR10(config-pm-qos)#showrunning-configpm-qos|includeconform-dscp
conform-dscp112361
ZXR10(config-pm-qos)#
Adescriptionoftheoutputcommandsisasfollows:
showCommandOutputDescription
11Sourcedscp.
23Newdscp.
6Newpri.
1Droppriority.
lThefollowingisasampleoutputfromtheshowrunning-configpm-qos|includetrust
-dscpcommand:
ZXR10(config-pm-qos)#showrunning-configpm-qos|includetrust-dscp
trust-dscpgei-0/1/1/1enable
ZXR10(config-pm-qos)#
Adescriptionoftheoutputcommandsisasfollows:
showCommandOutputDescription
gei-0/1/1/1Interfacename.
enableThedscpswitch.
lThefollowingisasampleoutputfromtheshowrunning-configpm-qos|includepriority
command:
ZXR10(config-pm-qos)#showrunning-configpm-qos|includepriority
prioritygei-0/1/1/27
ZXR10(config-pm-qos)#
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Adescriptionoftheoutputcommandsisasfollows:
showCommandOutputDescription
gei-0/1/1/2Interfacename.
7Defaultpriority.
lThefollowingisasampleoutputfromtheshowrunning-configpm-qos|includequeue
-modecommand:
ZXR10(config-pm-qos)#showrunning-configpm-qos|includequeue-mode
queue-modegei-0/1/1/1wrr110
queue-modegei-0/1/1/1wrr215
ZXR10(config-pm-qos)#
Adescriptionoftheoutputcommandsisasfollows:
showCommandOutputDescription
gei-0/1/1/1Interfacename.
wrrSchedulingmode.
10Queueweight.
lThefollowingisasampleoutputfromtheshowrunning-configpm-qos|includetraffi
c-limitcommand:
ZXR10(config-pm-qos)#showrunning-configpm-qos|includetraffic-limi
traffic-limitgei-0/1/1/1rate-limit200000bucket-size100
ZXR10(config-pm-qos)#
Adescriptionoftheoutputcommandsisasfollows:
showCommandOutputDescription
gei-0/1/1/1Interfacename.
200000Ratelimit.Theratelimitofthechipandthatconguredin
thecommandhavealittledeection.
100Bucketsize.Thebucketsizeofthechipandthat
conguredinthecommandhavealittledeection.
lThefollowingisasampleoutputfromtheshowrunning-configpm-qos|includetraffi
c-shapecommand:
ZXR10(config-pm-qos)#showrunning-configpm-qos|includetraffic-shap
traffic-shapegei-0/1/1/1data-rate200000burst-size100
traffic-shapegei-0/1/1/1queue1min-gua-datarate500max-datarate-limit600
ZXR10(config-pm-qos)#
Adescriptionoftheoutputcommandsisasfollows:
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Chapter1PortQoSConguration
showCommandOutputDescription
gei-0/1/1/1Interfacename.
data-rate200000Datarate.Thedatarateofthechipandthatconguredin
thecommandhavealittledeection.
burst-size100Bucketsize.Thebucketsizeofthechipandthat
conguredinthecommandhavealittledeection.
queue1Thequeueofwhichthebandwidthisrestricted.
min-gua-datarate500Minimumbandwidth.
max-datarate-limit600Maximumbandwidth.
lThefollowingisasampleoutputfromtheshowrunning-configpm-qos|includecos-lo
cal-mapcommand:
ZXR10(config-pm-qos)#showrunning-configpm-qos|includecos-local-ma
cos-local-map01234567
ZXR10(config-pm-qos)#
Adescriptionoftheoutputcommandsisasfollows:
showCommandOutputDescription
01234567Thelocalpriorityofqueuecos0tocos7,thatisthequeue
number.
lThefollowingisasampleoutputfromtheshowrunning-configpm-qos|includetrust-
cos-lp-mapcommand:
ZXR10(config-pm-qos)#showrunning-configpm-qos|includetrust-cos-lp
trust-cos-lp-mapgei-0/1/1/1enable
ZXR10(config-pm-qos)#
Adescriptionoftheoutputcommandsisasfollows:
showCommandOutputDescription
gei-0/1/1/1Interfacename.
enableThelocalpriorityswitch.
lThefollowingisasampleoutputfromtheshowrunning-configpm-qos|includecos-d
rop-mapcommand:
ZXR10(config-pm-qos)#showrunning-configpm-qos|includecos-drop-map
cos-drop-map01102011
ZXR10(config-pm-qos)#
Adescriptionoftheoutputcommandsisasfollows:
showCommandOutputDescription
01102011Thedroppriorityofqueuecos0tocos7.
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ZXR105900ESeriesCongurationGuide(QoS)
lThefollowingisasampleoutputfromtheshowrunning-configpm-qos|includecos-d
p-mapcommand:
ZXR10(config-pm-qos)#showrunning-configpm-qos|includecos-dp-map
trust-cos-dp-mapgei-0/1/1/1enable
ZXR10(config-pm-qos)#
Adescriptionoftheoutputcommandsisasfollows:
showCommandOutputDescription
gei-0/1/1/1Interfacename.
enableThelocalpriorityswitch.
lThefollowingisasampleoutputfromtheshowrunning-configpm-qos|includetail-d
ropcommand:
ZXR10(config-pm-qos)#showrunning-configpm-qos|includetail-drop
tail-drop0queue-id1200100100
drop-modegei-0/1/1/1tail-drop0
ZXR10(config-pm-qos)#
Adescriptionoftheoutputcommandsisasfollows:
showCommandOutputDescription
0sessionnumber.
queue-id1Queuenumber.
200Thedropthresholdforgreenpackets.
100Thedropthresholdforyellowpackets.
100Thedropthresholdforredpackets.
gei-0/1/1/1Interfacename.
Note:
Thereisabigdifferencebetweentherealparameterofataildropchipandthecommand
lineparameter.Thedeectionarithmeticofdifferentchipsisdifferent.Fordetails,referto
themanualaboutboardchipsorconsultthedevelopers.
1.4PortQoSCongurationExample
CongurationDescription
NetworkA,NetworkB,andinternalserversareconnectedtoanEthernetswitch,see
Figure1-1.InternalserversincludeaVODserver.T oensureQoSofVOD,ahigher
priorityisneededfortheVODserver.InternaluserscanaccesstheInternetthrougha
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