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From: whna@cgch.UUCP (Heinz Naef)
Newsgroups: comp.protocols.ibm
Subject: Re: 3270 File Transfer Protocol Query
Message-ID: <8906071350.AA20140@jade.berkeley.edu>
Date: 6 Jun 89 06:54:41 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Reply-To: Heinz Naef <mcvax!cernvax!cgch!whna@UUNET.UU.NET>
Organization: The Internet
Lines: 45

In article <744@emdeng.Dayton.NCR.COM>, tmcclory@emdeng.Dayton.NCR.COM
        (Thomas.J.Tom.McClory) writes:
>
> In article <8905122322.AA24828>, John King references a
> 3270 emulation package that supports a PC file transfer.
> Several questions:
>
>   Is there a "standard" file transfer protocol for IBM 3270 emulations?
>
    The "IBM 3270 PC File Transfer" protocol could be treated as an IBM
    standard to do interactive file transfer between a 3270 PC (or an
    appropriate emulation package) and a time sharing subsystem (MVS/TSO,
    CICS/VS, VM/SP CMS) on an IBM host. ECF or APPC could be an alternative
    one day?!
>
>   Is this a "supported" feature of IBM's 3270 emulation packages?
>   What 3270 PC emulations support this 3270 file transfer protocol?
>
    Several IBM and non-IBM products implement this protocol, e. g.:
    IBM Product 5665-311 MVS TSO/E Server
    IBM Product 5664-281 VM/SP CMS Server
    IBM PC 3270 Emulation Program (client function)
    Sun Microsystems SunLink SNA 3274 ibmftp (client function)
    others?
>
>   Can anyone provide me with detailed references that define the
>   message stream for this protocol?
>
    Check IBM Form SC23-0165-0; IBM3270 PC Control Program, Programming Guide;
    Appendix B: Using X'D0' Structured Fields to Transmit Data.
    It's a detailed, IBM style format and protocol specification. You should
    be familiar with the concept of partitions and structured fields.
>
    Disclaimer: I'm an employee of a Sun and IBM customer.

Hope this helps.

Heinz Naef, c/o CIBA-GEIGY AG, R-1032.5.58, P.O.Box, CH-4002 Basel, Switzerland
  UUCP:     cgch!whna
  Internet: whna%cgch.uucp@uunet.uu.net              Phone: (+41) 61 697 26 75
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Heinz Naef, c/o CIBA-GEIGY AG, R-1032.5.58, P.O.Box, CH-4002 Basel, Switzerland
  UUCP:     cgch!whna
  Internet: whna%cgch.uucp@uunet.uu.net              Phone: (+41) 61 697 26 75
  BITNET:   whna%cgch.uucp@cernvax.bitnet            Fax:   (+41) 61 697 32 88