83• After you separately set the output rules for a module, you must use the module-name argument tomodify or remove the rules. The new configuration by using the default keyword is invalid on themodule.Examples# Output VLAN module's log information with a severity level of at least emergency to the console. system-view[Sysname] info-center source default console deny[Sysname] info-center source vlan console level emergency# Based on the previous configuration, disables the output of VLAN module's log information to theconsole, that is, all logs are not output to the console. system-view[Sysname] undo info-center source vlan consoleinfo-center synchronousUse the info-center synchronous command to enable synchronous information output.Use the undo info-center synchronous command to disable the synchronous information output.Syntaxinfo-center synchronousundo info-center synchronousDefaultThe synchronous information output is disabled.ViewsSystem viewPredefined user rolesnetwork-adminUsage guidelinesSynchronous information output refers to the feature that if the user's operation is interrupted by a largeamount of system logs, then after the completion of system logs the system will display a command lineprompt (a prompt in command editing mode, or a [Y/N] string in interaction mode) and your input sofar, and you can continue your operations from where you were stopped.Examples# Enable the synchronous information output function, and then input the display interfaceten-gigabitethe command to view the Ethernet interface information. system-view[Sysname] info-center synchronousInfo-center synchronous output is on[Sysname] display interface ten-gigabitetheAt this time, the system receives log messages, and it then displays the log messages first. After the systemdisplays all the log messages, it displays the user's previous input, which is display interfaceten-gigabitethe in this example.%Apr 29 08:12:44:71 2007 Sysname IFNET/4/LINK UPDOWN:Vlan-interface1: link status is UP