There are three possible mechanisms you can use to enable the Agent:
Using the Configuration Agent Wizard ( /usr/bin/apoc-config), set the Agent State to Active.
Using the Configuration Agent controller program ( /usr/lib/apoc/apocd), execute the following as root:
| /usr/lib/apoc/apocd enable | 
Using smf(5), execute the following as superuser:
| /usr/sbin/svcadm enable svc:/network/apocd/udp |