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Enabling duplicate log suppression
The output of consecutive duplicate logs at an interval of less than 30 seconds wastes system and
network resources.
With this feature enabled, the system starts a suppression period upon outputting a log:
•
During the suppression period, the system does not output logs that have the same module
name, level, mnemonic, location, and text as the previous log.
•
After the suppression period expires, if the same log continues to appear, the system outputs
the suppressed logs and the log number and starts another suppression period. The
suppression period is 30 seconds for the first time, 2 minutes for the second time, and 10
minutes for subsequent times.
•
If a different log is generated during the suppression period, the system aborts the current
suppression period, outputs suppressed logs and the log number and then the different log, and
starts another suppression period.
To enable duplicate log suppression:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enable duplicate log
suppression.
info-center logging suppress
duplicates
By default, duplicate log
suppression is disabled.
Disabling an interface from generating link up or
link down logs
By default, all interfaces generate link up or link down log information when the interface state
changes. In some cases, you might want to disable some interfaces from generating this information.
For example:
•
You are concerned only about the states of some interfaces. In this case, you can use this
function to disable other interfaces from generating link up and link down log information.
•
An interface is unstable and continuously outputs log information. In this case, you can disable
the interface from generating link up and link down log information.
To disable an interface from generating link up or link down logs:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter interface view.
interface interface-type
interface-number
N/A
3.
Disable the interface from
generating link up or link
down logs.
undo enable log updown
By default, all interfaces generate
link up and link down logs when
the interface state changes.
Displaying and maintaining information center
Execute
display
commands in any view and
reset
commands in user view.
