Duplicate MAC address detection and suppression

You can use duplicate MAC address detection and suppression to identify and mitigate rapid MAC mobility movements across the network. This feature prevents forwarding loops, protects network resources, and ensures control plane stability against misconfigurations. You can also configure an exclusion list for MAC addresses in EVPN networks to prevent legitimate MAC address movements from being marked as duplicates. Use [set protocols evpn mac-list list_name mac-address mac_address_with_prefix_len] to create the list and [set protocols evpn duplicate-mac-detection exclude-list list_name] to apply it. This feature helps maintain network stability by avoiding unnecessary duplicate MAC detection for specified addresses, particularly in scenarios involving virtual MAC configurations in redundant setups.