QPs (in separate CAs) that will be sending messages to each other must each be set up to use the same IBA protocol “flavor.” In the specification, the four IBA transfer types are referred to as service types, service classes, or transport types.
The example scenario described in “Sending a Message to a Destination CA” on page 47 and pictured in Figure 3-4 on page 58 and Figure 3-5 on page 59 made the assumption that the QPs in the two CAs had been set up to use the Reliable Connected (RC) IBA transport service.
The specification defines two types of connected service types:
- Reliable Connected (RC). The responder ...