FTR, I did my tests using ussuri neutron version with 4b5bcff64c4725b37f094dfd2613ec58f723d304 cherry-picked on top of 4edf21a37561971991ee450b07fcfbca95922bc2 (plus internal patches that do not change openvswitch driver code).
FTR, I did my tests using ussuri neutron version with 4b5bcff64c4725b 37f094dfd2613ec 58f723d304 cherry-picked on top of 4edf21a37561971 991ee450b07fcfb ca95922bc2 (plus internal patches that do not change openvswitch driver code).