Disabling mac address learning on interfaces, Disabling mac address learning on a vlan, Bulk configuring interfaces – H3C Technologies H3C S12500-X Series Switches User Manual
Page 36: Configuration guidelines, Configuration procedure
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Disabling MAC address learning on interfaces
With global MAC address learning enabled, you can disable MAC address learning on a single
interface.
To disable MAC address learning on an interface:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
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
•
Enter S-channel interface view:
interface s-channel
interface-number.channel-id
•
Enter S-channel aggregate
interface view:
interface schannel-aggregation
interface-number:channel-id
N/A
3.
Disable MAC address
learning on the interface.
undo mac-address mac-learning
enable
By default, MAC address
learning on the interface is
enabled.
Disabling MAC address learning on a VLAN
With global MAC address learning enabled, you can also disable MAC address learning on a
per-VLAN basis.
To disable MAC address learning on a VLAN:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enable global MAC address
learning.
mac-address mac-learning enable
By default, global MAC address
learning is enabled.
3.
Enter VLAN view.
vlan vlan-id
N/A
4.
Disable MAC address
learning on the VLAN.
undo mac-address mac-learning
enable
By default, MAC address learning
on the VLAN is enabled.
Configuring the aging timer for dynamic MAC address entries
The MAC address table uses an aging timer for dynamic MAC address entries for security and efficient
use of table space. If a dynamic MAC address entry has failed to update before the aging timer expires,
the device deletes the entry. This aging mechanism makes sure the MAC address table could promptly
update to accommodate latest network topology changes.