When enabling ARP protection, it is best practice to wait at least a week after enabling DHCP snooping before enabling ARP protection in a live network. This allows the DHCP snooping binding table to stabilize, ensuring ARP protection has accurate IP-MAC bindings, reducing false positives.
Immediate ARP protection may cause legitimate traffic to be dropped.
Lease times and DHCP server utilization are less critical.
This staged approach minimizes disruption.
[References:, , ArubaOS-CX Security Features Best Practices, , HPE Aruba ARP Protection Configuration Guide, , Aruba Network Security Deployment Guidelines]
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