If you’re confused by the changes to network configuration in Solaris 11 (and who isn’t?) then this is a good place to start.

http://docs.oracle.com/cd/E23824_01/html/E24456/network-1.html

The online reading interface seems to be responsive and well formatted, so I read the first few pages in my browser.  It does a good job of giving you an overview at the start so you can understand the way the new commands and modes fit together.