36Table 2 Information channels and output destinationsInformationchannel numberDefault channelnameDefault outputdestination Description0 console Console Receives log, trap and debugging information.1 monitor Monitor terminal Receives log, trap and debugging information,facilitating remote maintenance.2 loghost Log hostReceives log, trap and debugging informationand information will be stored in files for futureretrieval.3 trapbuffer Trap buffer Receives trap information, a buffer inside thedevice for recording information.4 logbuffer Log bufferReceives log and debugging information, abuffer inside the device for recordinginformation.5 snmpagent SNMP module Receives trap information.6 channel6 Web interface Receives log information.7 channel7 Not specified Receives log, trap, and debugging information.8 channel8 Not specified Receives log, trap, and debugging information.9 channel9 Log file Receives log, trap, and debugging information.Outputting system information by source moduleThe system is composed of a variety of protocol modules, board drivers, and configuration modules. Thesystem information is classified, filtered, and output according to source modules. You can use theinfo-center source ? command to view the supported information source modules.Default output rules of system informationThe default output rules define the source modules allowed to output information on each outputdestination, the output information type, and the output information level as shown in Table 3. Thefollowing applies to all modules by default:• All log information is allowed to be output to the web interface and log file. Log information withseverity level equal to or higher than informational is allowed to be output to the log host. Loginformation with severity level equal to or higher than informational is allowed to be output to theconsole, monitor terminal, and log buffer. Log information is not allowed to be output to the trapbuffer or the SNMP module.• All trap information is allowed to be output to the console, monitor terminal, log host, web interface,and log file. Trap information with severity level equal to or higher than informational is allowed tobe output to the trap buffer and SNMP module. Trap information is not allowed to be output to thelog buffer.• All debugging information is allowed to be output to the console and monitor terminal. Debugginginformation is not allowed to be output to the log host, trap buffer, log buffer, the SNMP module,web interface, and log file.
