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Usage guidelines
This feature shuts an interface down when a MAC address has been moved to or from the interface
more than the suppression threshold within a MAC move detection interval. The shutdown interface
automatically goes up after a suppression interval. Also, you can use the
shutdown command and
then the
undo shutdown command to bring up the interface.
When MAC address move suppression shuts an interface down, the system sends only syslog
messages to the information center module. If the snmp-agent trap enable mac-address
command is also executed, the system also sends SNMP notifications to the SNMP module.
Examples
# Enable MAC address move suppression on GigabitEthernet 1/0/1.
[Sysname] interface gigabitethernet 1/0/1
[Sysname-GigabitEthernet1/0/1] mac-address notification mac-move suppression
Related commands
mac-address notification mac-move suppression (system view)
mac-address notification mac-move suppression (system
view)
Use mac-address notification mac-move suppression to set the suppression interval
or the suppression threshold.
Use
undo mac-address notification mac-move suppression to restore the default.
Syntax
mac-address notification mac-move suppression { interval interval |
threshold threshold }
undo mac-address notification mac-move suppression
{ interval |
threshold }
Default
The suppression interval is 30 seconds. The suppression threshold is 3.
Views
System view
Predefined user roles
network-admin
Parameters
interval interval: Specifies the MAC address move suppression interval during which a
suppressed interface stays down. The value range for the
interval-value argument is 30 to
86400 seconds. If you do not specify this option, the default suppression interval of 30 seconds is
used.
threshold threshold: Specifies the suppression threshold for MAC address moves sourced
from or destined for an interface within a MAC move detection interval. The value range for this
argument is 0 to 1024. If you do not specify this option, the default suppression threshold of 3 is
used.
Usage guidelines
For this command to take effect on an interface, you must also enable MAC address move
suppression on the interface.
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