HP E4510-48G, Command Reference Manual

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13-5
As your MAC address entries configuration cannot survive a reboot, save it after completing the
configuration. The dynamic entries however will be lost whether you save the configuration or not.
Related commands: display mac-address .
Examples
# Add a static entry for MAC address 000f-e201-0101. All frames destined to this MAC address are
sent out of port GigabitEthernet 1/0/1 which belongs to VLAN 2.
<Sysname> system-view
[Sysname] mac-address static 000f-e201-0101 interface gigabitethernet 1/0/1 vlan 2
mac-address mac-learning disable
Syntax
mac-address mac-learning disable
undo mac-address mac-learning disable
View
VLAN view
Default Level
2: System level
Parameters
None
Description
Use the mac-address mac-learning disable command to disable MAC address learning on a VLAN.
Use the undo mac-address mac-learning disable command to enable MAC address learning on a
VLAN.
By default, MAC address learning is enabled on all VLANs.
Note that:
z
You may need to disable MAC address learning sometimes to prevent the MAC address table
from being saturated, for example, when your device is being attacked by a great deal of packets
with different source MAC addresses. This somewhat affects update of the MAC address table.
z
As disabling MAC address learning may result in broadcast storms, you need to enable broadcast
storm suppression after you disable MAC address learning on a port.
Related commands: display mac-address mac-learning .
Once MAC learning is disabled in a VLAN, all MAC address entries learnt in the VLAN are removed.