Re: Host initiated line drop for 7171 protocol converter

I will check the 7171 files we have at work tomorrow, to see if I have anything about this.

/Tom Kern

On 12/5/2010 12:10, Peter Coghlan wrote:
>
> When using IBM 7171 (or the earlier Yale series/1 iup) protocol converters
> to connect to an IBM host, it was possible to get it to drop the line at
> logoff or disconnect by having the host send a specific 3270 sequence.
>
> I have done a small modification to Hercules to have it recognise this
> sequence and cause the incoming tn3270 session to be closed. It works with
> the MUSIC o/s which can be configured to send the required sequence at
> logoff unless you specify the HOLD option.
>
> In the case of VM/SP and likely VM/370, there was a CP modification to
> accomplish the same thing. I have searched for this on the net but have
> been unable to find a copy. I did find a 1985 entry in the vmshare archive
> where someone from Yale said that it was "put on the tools tape at last
> years VM workshop". It was also distributed with the "S1TRAN" package
> along with some other software which was not freely available. Does
> anyone still have a copy of this or a similar modification?
>
> If not, can anyone help me recreate it? HRC029DK already appears to do
> something similar to drop connections at logout from second level.
>
> Regards,
> Peter.
>
> 



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