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Enabling MAC address synchronization
To avoid unnecessary floods and improve forwarding speed, make sure all member devices have the
same MAC address table. After you enable MAC address synchronization, each member device
advertises learned MAC address entries to other member devices.
As shown in Figure 3:
• Device
A and Device B form an IRF fabric enabled with MAC address synchronization.
• Device A and Device B connect to AP C and AP D, respectively.
When Client A associates with AP C, Device A learns a MAC address entry for Client A and
advertises it to Device B.
Figure 3 MAC address tables of devices when Client A accesses AP C
When Client A roams to AP D, Device B learns a MAC address entry for Client A. Device B
advertises it to Device A to ensure service continuity for Client A, as shown in Figure 4.
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