HP -UX SNAplus2 Manual do Utilizador descarregar pdf (Página 39)

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Chapter 1 39

SNA Terms and Concepts

Basic SNA Concepts

Figure 1-2 Multiple and Parallel Sessions

Conversations

This section applies to LU 6.2 only.

Once a session is established between two LUs, the LU-LU session

supports the exchange of information between two TPs, which have the

exclusive use of the session to execute a transaction. This exchange of

information is called a conversation. Only one conversation can use a

particular session at a time, but sessions are serially reusable (many

conversations can use the same session, one after another).

To initiate a conversation, a source TP sends a request to its LU, asking

it to allocate a conversation with a remote TP. The invoking TP (or

source TP) initiates the conversation, like the calling party in a

telephone conversation. The invokable TP or target TP (the remote TP) is

the partner in the conversation, like the party who receives a telephone

call.

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