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From: jmaynard@thesis1.hsch.utexas.edu (Jay Maynard)
Newsgroups: comp.protocols.ibm
Subject: Re: 3270 ATTN key -- what does it generate?
Message-ID: <4470@lib.tmc.edu>
Date: 18 Dec 90 01:27:02 GMT
References: <1990Dec15.014654.28204@naitc.naitc.com> <4467@lib.tmc.edu> <374@rufus.UUCP>
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In article <374@rufus.UUCP> drake@drake.almaden.ibm.com writes:
>Since ATTN's used to talk to the network (VTAM, the 3x74 et al), not the host,
>I'm not sure how you'd implement it on a telnet server.

Well...sort of. It's also used to interrupt applications in progress,
especially TSO, and in some session managers (Legent's TPX springs to
mind) to signal a desire to switch from the current session to the manager
screen. As such, it is a useful (possibly, in some environments, necessary)
thing to implement. I know that there's a canonical implementation, since
FTP Software's tn3270 client does it in a manner that our Interlink telnet
server understands; I just don't know what it is.

-- 
Jay Maynard, EMT-P, K5ZC, PP-ASEL | Never ascribe to malice that which can
jmaynard@thesis1.hsch.utexas.edu  | adequately be explained by stupidity.
  "...flames are a specific art form of Usenet..." -- Gregory C. Woodbury