- ``vni {unsigned}``: VXLAN identifier.
+- ``e_tag``: match IEEE 802.1BR E-Tag header.
+
+ - ``grp_ecid_b {unsigned}``: GRP and E-CID base.
+
+- ``nvgre``: match NVGRE header.
+
+ - ``tni {unsigned}``: virtual subnet ID.
+
- ``mpls``: match MPLS header.
- ``label {unsigned}``: MPLS label.