Which protocol allows for the tunneling of layer 2 traffic over a layer 3 network?

The Virtual Extensible LAN (VXLAN) protocol is used to create layer 2 tunnels over a layer 3 network. The VXLAN protocol functions by encapsulating layer 2 traffic inside of a layer 3 packet. The Equal Cost Load Balancing Protocol (ECMP) is used by Leaf and Spine switches to provide next-hop packet forwarding decisions. Dynamic Multipoint Virtual Private Network (DMVPN) is a point-to-multipoint VPN technology used for layer 3 connectivity over a wide area network (WAN) connection. The Enhanced Interior Gateway Routing Protocol (EIGRP) is a Cisco-proprietary layer 3 routing protocol.