Operation Manual - System Management 
Quidway S3500 Series Ethernet Switches  Chapter 4  System Maintenance and Debugging
 
Huawei Technologies Proprietary 
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Table 4-35 Configuring to output information to log buffer 
Operation  Command 
Output information to log 
buffer 
info-center logbuffer [ channel { channel-number | 
channel-name } ] [ size buffersize ] 
Cancel the configuration of 
outputting information to log 
buffer 
undo info-center logbuffer [ channel | size ] 
 
3)  Configuring information source on the switch 
By this configuration, you can define the information that sent to log buffer is generated 
by which modules, information type, information level, and so on. 
Perform the following operation in system view: 
Table 4-36 Defining information source 
Operation  Command 
Define information 
source 
info-center source {  modu-name  | default }  channel 
{ channel-number | channel-name } [ { log | trap | debug }* 
{ level severity | state state }*  ] 
Cancel the 
configuration of 
information source 
undo info-center source { modu-name  | default } 
channel { channel-number | channel-name } 
 
modu-name specifies the module name; default represents all the modules; level 
refers to the severity levels; severity specifies the severity level of information. The 
information with the level below it will not be output. channel-number specifies the 
channel number and channel-name specifies the channel name. 
When defining the information sent to log buffer, channel-number or channel-name 
must be set to the channel that corresponds to Console direction. 
Every channel has been set with a default record, whose module name is default and 
the module number is 0xffff0000. However, for different channels, the default record 
may have different default settings of log, trap and debugging.  When there is no 
specific configuration record for a module in the channel, use the default one. 
 
  Note: 
If you want to view the debugging information of some modules on the switch, you must 
select  debugging as the information type when configuring information source, 
meantime using the debugging command to turn on the debugging switch of those 
modules.