Solaris 11.4 Setting up networking in NGZs

Solaris 11.4 virtual server on vmware 6.7.  Initial network config was 1 net interface which was shared with 2 NGZs.  Each NGZ had its own ip. and was configured with ip-type-shared.  Everything seemed to work fine, however when the server goes into production, there may be too much traffic for 3 servers over 1 interface, so I added 2 additional virtual nics (essentially physical nics to Solaris)within vmware.  Solaris sees the virtual nics and dladm displays all 3 (net0, net1, net2).  typed ipadm create-ip net1 (and net 2) which set the interface.  zonecfg -z <zone> add net   set address=<ip> and