ISDN Debug and Show Commands
11-92 ISDN BRI and PRI Commands

shutdown (BRI)

ThiscommandforcesalldatacallstobedisconnectedandsignalsallinternalXSRresourcesthat
theportisnotavailable.
Syntax
shutdown [board/slot/port]
Syntax of the “no” Form
no shutdown [board/slot/port]
Mode
Interfaceconfiguration:XSR(config)#shutdown

ISDN Debug and Show Commands

debug isdn

ThiscommandinitiatesaLayer2or3ISDNdebugsessiontotracefailedcallsattheDchannel
level.IssuingthecommandhastheeffectoflockingoutdebuggingbyanyotherTelnetorConsole
connection.IfbothLayer2(Q921)and3(Q931)choicesareselected,tracingwilldisplayboth
layers.
Youcanexitthedebugsessioneitherbyisuingtheno debug isdncommandorterminatingthe
TelnetorConsolesession.
Optionally,youcansetalimitofupto9999messageswhichwilldisplayattheCLIafterwhichthe
debugsessionwillend.Ifthelimitisnotspecified,after100displayedmessages,theno debug
isdncommandwillautomaticallyberun.Thelimitparameterisaglobalvaluethatisrefreshed
eachtimedebug isdnisentered.
Syntax
debug isdn slot/card/port Q931 | Q921 [limit {10-9999}]
board/slot/port XSRboard,slotandportnumbers.
Note: To prevent unauthorized personnel from observing the debug session on the network, users
with privilege level 15 only can issue this command.
slot/card/port ISDN board,slot,andportnumbers.
Q931 Layer3protocoltracingenabledforaportissue.
Q921 Layer2protocoltracingenabledforaportissue.
limit ISDNdebugsessionexitsafterallmessagesdisplay.
10-9999 Numberofmessagesdisplayedduringadebugsession.