Oracle Solaris 11 Express introduced a new network stack architecture previously known as “Crossbow”. It lets you combine virtual NICs into flexible virtual networks that are tightly integrated with zones. In addition, the new architecture introduces the ability to manage your network resources by controlling bandwidth and flow.
As a result, you can now run these services inside a Solaris 11 Express zone:
This is just one of the changes between Oracle Solaris 11 Express and previous versions. For more info, see the Oracle Solaris 11 ISV Adoption Guide.