H3C Technologies H3C SecBlade NetStream Cards - Manual (Page 289)

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Disabling a port from generating link up/down logging
information
By default, all the ports of the device generate link up/down logging information when the port state
changes. Therefore, you may need to use this function in some cases, for example:
• You only concern the states of some of the ports. In this case, you can use this function to disable the
other ports from generating link up/down logging information.
• The state of a port is not stable, and therefore redundant logging information will be generated. In
this case, you can use this function to disable the port from generating link up/down logging
information.
Follow the steps below to disable a port from generating link up/down logging information:
To do… Use the command… Remarks
Enter system view system-view —
Enter interface view
interface interface-type
interface-number
—
Disable the port from generating
link up/down logging information
undo enable log updown
Required
By default, all ports are allowed to
generate link up/down logging
information when the port state
changes.
NOTE:
With this feature applied to a port, when the state of the port changes, the system does not generate port
link up/down logging information. In this case, you cannot monitor the port state changes conveniently.
Therefore, it is recommended to use the default configuration in normal cases.
Displaying and maintaining information center
To do… Use the command… Remarks
Display information about
information channels display channel [ channel-number |
channel-name ]
Available in any view
Display the information of each
output destination
display info-center Available in any view
Display the state of the log buffer
and the log information recorded
display logbuffer [ reverse ] [ level severity
| size buffersize ] * [ | { begin | exclude |
include } regular-expression ]
Available in any view
Display a summary of the log
buffer display logbuffer summary [ level
severity ]
Available in any view
Display the content of the log file
buffer
display logfile buffer Available in any view
Display the configuration of the log
file
display logfile summary Available in any view
Display the state of the trap buffer
and the trap information recorded display trapbuffer [ reverse ] [ size
buffersize ]
Available in any view