7
Disabling MAC address learning on an interface
About disabling MAC address learning on an interface
When global MAC address learning is enabled, you can disable MAC address learning on a single
interface.
Procedure
1.
Enter system view.
system-view
2.
Enter interface view.
{
Enter Layer 2 Ethernet interface view.
interface interface-type interface-number
{
Enter Layer 2 aggregate interface view.
interface bridge-aggregation interface-number
3.
Disable MAC address learning on the interface.
undo mac-address mac-learning enable
By default, MAC address learning is enabled on an interface.
Disabling MAC address learning on a VLAN
About disabling MAC address learning on a VLAN
When global MAC address learning is enabled, you can disable MAC address learning on a
per-VLAN basis.
Procedure
1.
Enter system view.
system-view
2.
Enter VLAN view.
vlan
vlan-id
3.
Disable MAC address learning on the VLAN.
undo mac-address mac-learning enable
By default, MAC address learning on the VLAN is enabled.
Setting the MAC learning limit
About interface-based MAC learning limit
This feature limits the MAC address table size. A large MAC address table will degrade forwarding
performance.
Restrictions and guidelines
The MAC learning limit does not control the number of MAC addresses learned in voice VLANs. For
more information, see "Configuring voice VLANs."
Procedure
1.
Enter system view.
system-view
2.
Enter Layer 2 Ethernet interface view.
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