Encapsulations for NVO3

There are several encapsulations that have been proposed for use with NVO3.  In no particular order, they are:

• NVGRE
• VXLAN
• STT
• VXLAN-GPE
• Geneve
• LISP (and its Layer 2 counterpart which is similar to VXLAN)
• GUE
• L2-over-MPLS (over GRE) -- L2VPN
• L3-over-MPLS (over GRE) -- L3VPN
• L2TPv3

Which ones survive is to be seen.