2-2Table 2-2 System information display commandsOperation Command DescriptionDisplay the current date and time of thesystem display clockDisplay the version of the system display versionDisplay the information about userslogging onto the switch display users [ all ]You can executethe displaycommands in anyviewDebugging the SystemEnabling/Disabling System DebuggingThe device provides various debugging functions. For the majority of protocols and features supported,the system provides corresponding debugging information to help users diagnose errors.The following two switches control the display of debugging information:z Protocol debugging switch, which controls protocol-specific debugging informationz Screen output switch, which controls whether to display the debugging information on a certainscreen.Figure 2-1 illustrates the relationship between the protocol debugging switch and the screen outputswitch. Assume that the device can output debugging information to module 1, 2 and 3. Only when bothare turned on can debugging information be output on a terminal.Figure 2-1 The relationship between the protocol and screen debugging switchDisplaying debugging information on the terminal is the most commonly used way to output debugginginformation. You can also output debugging information to other directions. For details, refer toInformation Center Operation.