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Disabling MAC Learning for a Set of Bridge Domains
You can disable MAC learning for a set of bridge domains. Disabling dynamic MAC learning prevents the Layer 2 trunk port associated with the set of bridge domains from learning source and destination MAC addresses. When you disable MAC learning, source MAC addresses are not dynamically learned, and any packets sent to these source addresses are flooded into the switch.
To disable MAC learning for a set of bridge domains, include the no-mac-learning statement at the [edit switch-options] hierarchy level:
[edit switch-options]no-mac-learning;
