Enable Mac Address Move Notifications (For Release 2307) - H3C S5830V2 series Configuration Manual

Figure 4 MAC address tables of devices when Client A roams to AP D
To enable MAC address synchronization:
Step
1. Enter system view.
2. Enable MAC address
synchronization.
Enable MAC address move notifications (for
Release 2307)
The outgoing interface for a MAC address entry learned on interface A is changed to interface B when
the following conditions exist:
Interface B receives a packet with the MAC address as the source MAC address.
•
• Interface B belongs to the same VLAN as interface A.
As a result, the MAC address is moved from interface A to interface B, and a MAC address move occurs.
If a MAC address is continuously moved between the two interfaces, Layer 2 loops might occur. To detect
and locate loops, you can view the MAC address move information.
When the system detects that MAC address moves occur frequently, you can configure MAC address
move suppression to bring the source and current interfaces down. The interfaces can automatically
come up after waiting for the specified suppression interval. Or, you can manually bring up the interfaces.
To make MAC address move suppression take effect, you must use this feature together with the ARP fast
update feature. For more information about the ARP fast update feature, see
for MAC address
To display the MAC address move records after the device is started, use the display mac-address
mac-move command.
Command
system-view
mac-address mac-roaming enable
moves."
32
Remarks
N/A
By default, MAC address
synchronization is disabled.
"Enabling ARP fast update