1-15 
Operation  Command  Description 
Clear information recorded in 
the log buffer
 
reset logbuffer [ unit unit-id ] 
Clear information recorded in 
the trap buffer
 
reset trapbuffer [ unit unit-id ] 
Available in user 
view
 
 
Information Center Configuration Examples 
Log Output to a UNIX Log Host 
Network requirements 
The switch sends the following log information to the Unix log host whose IP address is 202.38.1.10: the 
log information of the two modules ARP and IP, with severity higher than “informational”. 
Network diagram 
Figure 1-1 Network diagram for log output to a Unix log host 
 
 
Configuration procedure 
1)  Configure the switch: 
# Enable the information center. 
<Switch> system-view 
[Switch] info-center enable 
# Disable the function of outputting information to log host channels.  
[Switch] undo info-center source default channel loghost 
# Configure the host whose IP address is 202.38.1.10 as the log host. Permit ARP and IP modules to 
output information with severity level higher than informational to the log host. 
[Switch] info-center loghost 202.38.1.10 facility local4 
[Switch] info-center source arp channel loghost log level informational debug state off trap 
state off 
[Switch] info-center source ip channel loghost log level informational debug state off trap 
state off 
2)  Configure the log host: 
The operations here are performed on SunOS 4.0. The operations on other manufacturers' Unix 
operation systems are similar. 
Step 1: Execute the following commands as the super user (root user). 
# mkdir /var/log/Switch 
# touch /var/log/Switch/information 
Step 2: Edit the file “/etc/syslog.conf” as the super user (root user) to add the following selector/action 
pairs.