Avaya VTCPD Features (Software Release 2.1 on MPS 2.1) Uživatelský manuál stáhnout pdf (Strana 61)

VTCPD Messages

P0602483 Ver: 03.41 Page 61

Asynchronous Replies and Reply Notification

When a response is received from the host, the VTCPD may handle the response in

one of three different ways:

• The response may be immediately delivered to the application.

• The response may be held by VTCPD, until VTCPD receives a request from

the application for the response.

• VTCPD can send a message to the application notifying it that the host

response is available.

The host response is delivered immediately, if VTCPD already has the RECEIVE

request from the application or if no RECEIVE request is required by the application.

If a RECEIVE request from the application is required and it has not been received,

then VTCPD can wait for the RECEIVE request, or it can send out a response

available message to the application.

The VTCPD daemon uses asynchronous data delivery to support these conditions.

Starting the VTCPD daemon with the command line option -m a instructs the

VTCPD daemon to send to the application the unexdata condition (contains the

host response data). Using the -m n option changes the condition, now the condition

only notifies the application that it can retrieve host response data by issuing a

RECEIVE operation.

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Avaya VTCPD Features (Software Release 2.1 on MPS 2.1) Uživatelský manuál Strana 61