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Policy-Map Commands

XSR CLI Reference Guide 12-91

Mode

Policy‐MapClassconfiguration:XSR(config-pmap-c-<xx>)#

Example

ThefollowingexampleconfigurestwoPQsforthepolicymappolicy57,withahighprioritylevel,

guaranteedbandwidthof300kbpsand aone‐timeallowableburstsizeof500kbpsforthemap‐

classvoice;andalowprioritybandwidth,80bytesofguaranteedbandwidth,andaburstsize

2000

bytesformap‐classbeta.

XSR(config)#policy-map policy57

XSR(config-pmap<policy57>)#class voice

XSR(config-pmap-c<voice>)#priority high 300 500

XSR(config-pmap<policy57>)#class beta

XSR(config-pmap-c<beta>)#priority low 80 2000

queue-limit

Thiscommandspecifiesormodifiesthemaximumnumberofpacketsthequeuecanholdfora

classpolicyconfiguredinapolicymap.

Class‐BasedWeightedFairQueueing(CBWFQ)createsaqueueforeveryclassforwhichaclass

mapisdefined.Packetssatisfyingthematchcriteriaforaclassaccumulate

inthequeuereserved

fortheclassuntiltheyaresent,whichoccurswhenthequeueisservicedbytheFairQueueing

process.Whenthepeakpacketthresholdyousetfortheclassisreached,anyfurtherpacket

enqueueingtotheclassqueuecausestaildrop.

Syntax

queue-limit number-of-packets

Syntax of the “no” Form

Thenoformofthecommandremovesthequeuepacketlimitfromaclass.IfREDisnot

configured,thequeuelimitisrestoredtothedefaultvalue.

no queue-limit

Mode

Policy‐MapClassconfiguration:XSR(config-pmap-c-<xx>)#

Default

64

Example

Thefollowingexampleconfigurespolicymappolicy75tocontainpolicyforclassacl203.Policyfor

thisclassissetsothatthequeuereservedforithasamaximumpacketlimitof50.

number-of-

packets

Anumberrangingfrom1to64specifyingthepeaknumberofpackets

thatthequeuecanaccomodateforthisclass.

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