What is the HTTP transport family
The http transport family Unlike the socket transport and its derivatives, which interact directly with Sockets and ServerSockets, the http family of transports uses java.net.HttpURLConnections. While they do not exhibit the same performance as the socket transports, they have the advantage of using the universal http protocol. Any of JBoss Messaging, EJB2, and EJB3 can use the http transports instead of the socket family of transports. Additional configuration information may be found in the wiki articles EJB, JMS and JNDI over HTTP with Unified Invoker and EJB, JMS and JNDI over HTTP via NAT Firewall with Unified Invoker.