Q159275: TN3270E DATA-TYPE Field with a Value of 0x08

Article: Q159275
Product(s): Microsoft SNA Server
Version(s): WINDOWS:2.11,2.11 SP1
Operating System(s): 
Keyword(s): kbnetwork
Last Modified: 13-JUN-2001

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The information in this article applies to:

- Microsoft SNA Server, versions 2.11, 2.11 SP1, on platform(s):
   - the operating system: Microsoft Windows NT 
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SUMMARY
=======

The TN3270E Server sets the DATA-TYPE Field with a value of 0x08 to indicate a
PRINT-EOJ.

MORE INFORMATION
================

RFC 1647 contains the following text on the DATA_TYPE field:

  8.1 The TN3270E Message Header

     As stated earlier, each data message in TN3270E must be prefixed
     by a header, which consists of five bytes and is formatted as
     follows:

     -----------------------------------------------------------
     | DATA-TYPE | REQUEST-FLAG | RESPONSE-FLAG |  SEQ-NUMBER  |
     -----------------------------------------------------------
        1 byte        1 byte         1 byte         2 bytes

  8.1.1 DATA-TYPE Field

     The DATA-TYPE field indicates how the data portion of the message is
     to be interpreted by the receiver.  Possible values for the DATA-TYPE
     field are:

        Data-type Name   Code                Meaning
        --------------   ----   ---------------------------------
        3270-DATA        0x00   The data portion of the message
                                contains only the 3270 data stream.

        SCS-DATA         0x01   The data portion of the message
                                contains SNA Character Stream data.

        RESPONSE         0x02   The data portion of the message
                                constitutes device-status information
                                and the RESPONSE-FLAG field indicates
                                whether this is a positive or negative
                                response (see below).

        BIND-IMAGE       0x03   The data portion of the message is
                                the SNA bind image from the session
                                established between the server and the
                                host application.

        UNBIND           0x04   The data portion of the message is
                                an Unbind reason code.

        NVT-DATA         0x05   The data portion of the message is to
                                be interpreted as NVT data.

        REQUEST          0x06   There is no data portion present in
                                the message.  Only the REQUEST-FLAG
                                field has any meaning.

        SSCP-LU-DATA     0x07   The data portion of the message is
                                data from the SSCP-LU session.

Additional query words: prodsna

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Keywords          : kbnetwork 
Technology        : kbAudDeveloper kbSNAServSearch
Version           : WINDOWS:2.11,2.11 SP1
Issue type        : kbinfo

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