Using APPC to Communicate with Other Systems › About APPC › Conversation Types

Conversation Types

There are two types of conversation supported by APPC:

• Basic conversations-for use by SNA Services programs only
• Mapped conversations-support user transaction programs

Both basic and mapped conversations use the LU 6.2 session in the same way. The only difference is the manner in which they are operated at the LU6.2 protocol boundary. At this boundary there is one verb set for mapped conversations, and another for basic conversation. There are also some type-independent verbs.

Your product supports the allocation of conversations as mapped or basic. Because of the high level nature of the NCL verb interface, all conversation operation is equivalent to the LU6.2 mapped conversation verb set.