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Set the aging timer appropriately:  
•  A long aging interval may cause the MAC address table to retain outdated entries and fail to 
accommodate the latest network changes. 
•  A short aging interval may result in removal of valid entries and unnecessary broadcasts that may 
affect device performance. 
Examples 
# Set the aging timer for dynamic MAC address entries to 500 seconds. 
<Sysname> system-view 
[Sysname] mac-address timer aging 500