This change introduces support for the vlan_limit option. This parameter is currently set to 1 by default, but we should set it to 2 to enable vlan_transparent, which requires nested vlans. Related-Bug: #1918418 Change-Id: Id9aaab2a1e3ad2d2d43cd5cddf389d20abaf4461 (cherry picked from commit4887f4ccd6) (cherry picked from commit14011d69c1)