Enterasys Networks XSR CLI frame-relay adaptive-shaping, frame-relay bc

Frame Relay Map Class Commands
9-96 Configuring Frame Relay
Mode
VirtualCircuitconfiguration:XSR(config-fr-dlci)#
Example
ThefirstthreecommandsinthefollowingexamplesetupSerialsub‐interface1/0.1with
associatedDLCI16.ThelasttwocommandsdefinemapclassHello.
XSR(config)#interface serial 1/0.1 point-to-point
XSR(config-if<S1/0>)#interface serial 1/0.1 point-to-point
XSR(config-subif)#frame-relay interface-dlci 16
XSR(config-fr-dlci)#class Hello
XSR(config)#map-class frame-relay Hello
XSR(config-map-class<Hello>)#frame-relay cir out 128000
frame-relay adaptive-shaping
Thiscommandenablesandselectsthemechanismtotriggeradaptiveshaping,thedynamic
impositionoftrafficshapingparameters(CIR,Bc,Be)basedonexternalfeedbackindicating
upstreamcongestionconditions.
FrameRelayswitchesuseBECN(BackEndCongestionNotification)toindicatecongestionand
throttletheDTEtrafficrate.
Syntax
frame-relay adaptive-shaping
Syntax of the “no” Form
Thenocommanddisablesadaptiveshaping:
no frame-relay adaptive-shaping
Mode
MapClassconfiguration:XSR(config-map-class)#
Default
Disabled
Example
ThisexamplesetsFrameRelaymap‐classnormlinkwithtrafficshaping:
XSR(config)#map-class frame-relay normlink
XSR(config-map-class)#frame-relay adaptive-shaping
frame-relay bc
ThiscommandspecifiestheoutgoingCommittedburstsize(Bc)foraFrameRelaymap‐class.
Committedburstisspecifiedinbits,butanimplicittimefactorisderivedfromthesampling
interval(Tc)ontheswitch,whichisdefinedastheburstsizedividedbytheCommitted
InformationRate(CIR).Thisisexpressedintheformula:Tc=Bc/CIR.Formoreinformation,refer
to“frame‐relaycir”onpage 98.