26# Bring up interface ATM 3/1/1. system-view[Sysname] interface Atm 3/1/1[Sysname-Atm3/1/1] undo shutdown# Shut down PVC 1/101. system-view[Sysname] interface Atm 3/1/1[Sysname-Atm3/1/1] pvc aa 1/101[Sysname-atm-pvc-Atm3/1/1-1/101-aa] shutdown# Bring up PVC 1/101. system-view[Sysname] interface Atm 3/1/1[Sysname-Atm3/1/1] pvc aa 1/101[Sysname-atm-pvc-Atm3/1/1-1/101-aa] undo shutdownthresholdSyntaxthreshold { sd | sf } valueundo threshold { sd | sf }ViewATM main interface viewDefault level2: System levelParameterssd: Sets the signal degrade (SD) alarm threshold.sf: Sets the signal failure (SF) alarm threshold.value: SD or SF alarm threshold, an integer in the range of 3 to 9.DescriptionUse the threshold command to set the SD alarm threshold or SF alarm threshold for the current ATMinterface.Use the undo threshold command to restore the default.By default, the SD alarm threshold is 10e-6 and the SF alarm threshold is 10e-3.SD and SF alarms are used to indicate current line performance. They are generated when the receivingend detects a certain amount of B2 errors. When a small amount of errors occur, SD alarms aregenerated; when the error rate increases to a certain level, SF alarms are generated, indicating lineperformance has been degrading seriously, so you must set the SF alarm threshold higher than the SDalarm threshold.When setting the thresholds, set the SD threshold lower than the SF threshold.Examples# Set the SD alarm threshold to 10e-4 for interface ATM 3/1/1. system-view
