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Multilink PPP Commands

XSR CLI Reference Guide 8-119

Syntax of the “no” Form

ThenoformofthiscommandremovesthePPPmultilinkgroup:

no multilink-group

Default

Disabledwithnospecificmultilinkgroupassigned

Mode

Interfaceconfiguration:XSR(config-if<xx>)#

Examples

ThefollowingexampleassignsPPPlinkSerialinterface1/1tothePPPmultilinkgroup20:

XSR(config-if<S1/1>)#multilink group 20

ThenextexamplealsoassignsPPPlinkSerialinterface1/1tothePPPmultilinkgroup20:

XSR(config-if<S1/1>)#ppp multilink group 20

multilink load-threshold

Thiscommandsetsthemultilinkloadthresholdwhichtriggersthedialertoaddordeletealink

fromthemultilinkbundle.Itshouldbeconfiguredonthecalledsideofaconnectiononly.This

commandeffectsBandwidth‐on‐Demand(BoD)ontheXSR.

Indeterminingwhethertotriggerthedialer,the

XSRmonitorsonlythebundleload.Theload

thresholdprovidesthedialerwithatriggertoaddordeletethemultilinkmemberlinkfromthe

memberlinkbundle.Theloadissampledeverysecondandaveragedoveran8‐secondperiod.

Triggeringisdelayedfor10secondswhentheloadsurpasses

orfallsbelowthethreshold.

Triggeringisgeneratedwhen:

•Eithertheinboundoroutboundtrafficsurpassesthethreshold;or

•Bothinboundandoutboundtrafficfallbelowthethreshold.

Notriggeringisgeneratedwhen:

•Thenumberofmemberlinksisalreadyequaltothemax‐linksvaluesetonthebundlewhen

theload

surpassesthethreshold;and

•Thenumberofthelinksisalreadyequaltothemin‐linksvaluesetonthebundlewhentheload

fallsbelowthethreshold.

The

multilink load-thresholdcommandisthesecondmeansbywhichtheXSRcontrolstraffic

viaBoD.Itisalsoprovidedbysettingthe

multilink min-links command,whichisthefirst

meansbywhichtheXSRcontrolstraffic.AthirdmeansusedtoeffectBoDisbyuseofthe

BandwidthAllocationProtocol(BAP)whichisactivatedbyseveral

ppp bapcommands.BAP

negotiateswiththepeertoaddordropalink,andcanrequestaphonenumberfromacentral

repositorywiththe

ppp bap number command.

Note: To avoid unexpected behavior, configure this command on one peer only. If it is set on both

peers, their threshold values should match.

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