VLT can also be used in combination with network virtualization technology such as EVPN. Primarily, EVPN uses RT-1 and RT-4 message types to handle multihomed nodes. RT-1 tells the network which switches are attached to which Ethernet segments. It carries the LACP identifier of the host as Ethernet Segment ID (ESI). When other Ethernet Segments receive the BGP updates of the RT-1 advertisement, they can determine which of their attached hosts belong to the same virtual network. RT-4 elects one of the VLT peers as the designated forwarder for multi-destination frames as it carries the mapping of the Ethernet Segment to the switch serving the segment. More details about Dell EMC SmartFabric OS10 BGP EVPN can be found in the Dell EMC Networking Virtualization Overlay with BGP EVPN document.