3Com Switch 7700 Configuration Manual page 349

For the above configuration, the log host is not configured on the switch. All other
configurations will take effect after enabling the logging function.
Enabling and Disabling the Logging Function
You can use the following commands to enable or disable the logging function.
Perform the following operation in system view.
Table 37 Enable/Disable the Logging Function
Operation
Enable the logging function.
Disable the logging function.
By default, syslog is disabled. When syslog is enabled, system performance is
affected by the information classification and the output, especially when there is
a large amount of information to be processed.
Setting the Output Channel of the Log
The syslog of the Ethernet switch has six possible output destinations. Use the
configuration commands to specify the required channels for syslog output. All
the information will be filtered by the specified channel and then transmitted to
the configured destination. You can configure the channel and filtering
information for every destination to implement the filtering and redirection of
different information.
Use the following commands to configure the output channel of the log.
Perform the following configuration in system view.
Table 38 Log Output
Operation
Configure to output the information to the
Console
Disable the output of the information to the
Console
Configure to output the information to the
Telnet terminal or monitor
Disable the output of the information to the
Telnet terminal or monitor
Configure to output the information to the
logging buffer.
Disable the output of the information to the
logging buffer.
Configure to output the information to the
info-center loghost.
Disable the output of the information to the
info-center loghost.
Set the address of the interface specified by
interface-name as the source address for
packets sent to loghost
Maintaining and Debugging the System
Command
info-center enable
undo info-center enable
Command
info-center console channel {
channel-number | channel-name }
undo info-center console channel
info-center monitor channel {
channel-number | channel-name }
undo info-center monitor channel
info-center logbuffer [ size buffersize ] [
channel { channel-number | channel-name } ]
undo info-center logbuffer [ channel | size
]
info-center loghost host-ip-addr [ channel {
channel-number | channel-name } ] [ facility
local-number ] [ language { chinese | english
} ]
undo info-center loghost host-ip-addr
info-center loghost source interface-name
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