3com S7906E Installation Instruction

 

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A large number of logs occupy storage space of the device, thus affecting the performance of the 

device. Therefore, it is recommended to disable SNMP logging. 

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The size of SNMP logs cannot exceed that allowed by the information center, and the total length of 

the node field and value field of each log record cannot exceed 1K bytes; otherwise, the exceeding 

part will not be displayed. 

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For the detailed description of system information, the information center and the info-center 

source command, refer to Information Center Configuration in the System Volume. 

 

The SNMP agent sends traps to the NMS to inform the NMS of critical and important events (such as 

reboot of a managed device). Two types of traps are available: generic traps and vendor-specific traps. 

Generic traps supported on the device include: authentication,  coldstart,  linkdown,  linkup and 

warmstart. The others are self-defined traps, which are generated by different modules. As traps that 

occupy large device memory affect device performance, it is recommended not to enable the trap 

function for all modules but for the specific modules as needed. 

With the trap function enabled on a module, the traps generated by the module will be sent to the 

information center. The information center has seven information output destinations. By default, traps 

of all modules are allowed to be output to the console, monitor terminal (monitor), loghost, and logfile; 

traps of all modules and with level equal to or higher than warnings are allowed to be output to the 

trapbuffer and SNMP module (snmpagent); and traps cannot be sent to the logbuffer. You can set 

parameters for the information center based on the levels of the traps generated by each module, and 

thus decide the output rules of traps (that is, whether traps are allowed to be output and the output 

destinations). For the configuration of the information center, refer to Information Center Configuration 

in the System Volume. 

Follow these steps to enable the trap function: 

Enter system view 

system-view 

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