Reference Guide

encapsulation, is associated with a physical/Port-channel interface. Normal VLANs and VLAN
encapsulation can exist simultaneously and any non-unicast traffic received on a normal VLAN is not
flooded using lite subinterfaces whose encapsulation VLAN ID matches with that of the normal VLAN ID.
You can use the encapsulation dot1q vlan-id command in INTERFACE mode to configure lite
subinterfaces.
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Flex Hash and Optimized Boot-Up