Enterasys Networks XSR CLI frame-relay cir

Frame Relay Map Class Commands
9-98 Configuring Frame Relay
Example
ThisexampleaddsmapclassslowlinkwithBeof10000andBcof6000bits:
XSR(config)#map-class frame-relay slowlink
XSR(config-map-class<slowlink>)#frame-relay be out 10000
XSR(config-map-class<slowlink>)#frame-relay bc out 6000
frame-relay cir
ThiscommandspecifiestheoutgoingCommittedInformationRate(CIR)foraFrameRelaymap‐
class.CIR,BcandBevaluesspecifyhowtheXSRforwardspacketsundernormalandcongested
conditionsusingthefollowingequation:
Tc=Bc/CIR=7,000bits/56,000bps=125mS(BcandCIRvaluesaredefault)
FrameRelaynetworksarecommittedtodeliverBcbitsofdataeveryTc,somaximumcommitted
throughputequals7,000/125mS=56kbps=CIR.Inthissense,CommittedBurst(Bc)isnotreallya
burstbuta��smoothing”functionforthenumberofbitsthattheXSRisallowedtotransmitduring
theTcperiodinordertoachievethespecifiedCIR.
SincethemaximumnumberofbitsthatcanbesentduringTcisBcplusBebits,usingthedefault
values,maximumthroughputequals(Bc+Be)/Tc=(7,000+7,000)/125mS=112kbps=2*56kbps=
2*CIR.
Syntax
frame-relay cir out rate
Syntax of the “no” Form
ThenocommandresetstheCIRtoitsdefaultvalue:
no frame-relay cir out
Mode
MapClassconfiguration:XSR(config-map-class)#
Defaults
•CIRenforcedforoutgoingtrafficonly
•CIR:56000bps
•Be:7000bits
•Bc:7000bits
Example
Thisexample���createsthemapclassslowlinkwithcirsetat9600bps:
XSR(config)#map-class frame-relay slowlink
XSR(config-map-class<slowlink>)#frame-relay cir out 9600
out Setsthetrafficdirection‐outputratelimitingonly.
rate CIR,rangingfrom1000to1,000,000bitspersecond.