Enterasys-networks X-Pedition XSR CLI Manual do Utilizador descarregar pdf (Página 521)

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Other ADSL Commands

XSR CLI Reference Guide 13-95

oam-pvc

Thiscommandenablesend‐to‐endF5(circuit) OAMcellproceduresforATMPermanentVirtual

Circuit(PVC)management.OAMcellsandhowtheyareusedareasfollows:

• AlarmIndicationSignal(AIS)–Receivedfromthenetworktoindicateaprobleminthe

forward‐to‐XSRdataflow.

• ContinuityCheck(CC)

–Echoedtothesenderwhenreceived.TheXSRdoesnotgenerateCC

cellsforconnectivitymanagementbutwillrespondtoCCprocedurenegotiationcells.

• Loopback–Echoedbacktothesenderwhenreceived.TheXSRsendsloopback cellstomonitor

theend‐to‐endconnectivityonthe VC.

• Remote

DefectIndication(RDI)–Receivedfromthenetworktoindicateaprobleminthe

reverse‐from‐XSRdataflow.SenttothenetworktoindicateaprobleminthelocalnodeXSR

aswellasinresponsetoanyAIScellsreceived.

Theloopbackcellsmonitoranddeclarethecircuitup

ordownasfollows:

•ThecircuitisUPimmediatelyafterlinetrainingcompletessuccessfull y.

•ThecircuitisdeclaredDOWNwhendown‐countconsecutiveloopbackresponsecellsare

missed.

•ThecircuitisdeclaredUPwhenup‐countconsecutiveloopbackresponsecellsarereceived.

ThiscommandrequiresaproperlyconfiguredATMsub‐interfac e.

Syntax

oam-pvc [manage][frequency]

Syntax of the “no” Form

ThenoformofthiscommanddisablesallOAMproceduresforthissub‐interface:

no oam-pvc

Mode

ATMSub‐Interfaceconfiguration:XSR(config-if<ATMx/x/x.x>)#

Defaults

•OAMprocedures:Disabled

•Intervalbetweenloopbackcells(frequency):10seconds

•Initialdown‐countvalue:5

•Initialup‐countvalue:3

manage

Optionalkeyword.

frequency

Intervalbetweensendingend‐to‐endF5OAMloopbackcellswhenthe

VCisintheUPstate.Range:1to3600seconds.

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