Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!mit-eddie!uw-beaver!ubc-cs!alberta!idacom!danny
From: danny@idacom.UUCP (Danny Wilson)
Newsgroups: comp.dcom.lans
Subject: Re: What services does X.25 provide?
Summary: Maybe in spec, but implemented?
Keywords: x.25, services, login, e-mail, file transfer, IPC
Message-ID: <727@idacom.UUCP>
Date: 20 Sep 89 23:31:01 GMT
References: <796@maxim.erbe.se> <3279@wasatch.utah.edu> <522@wet.UUCP> <1989Sep18.020822.16329@cit5.cit.oz>
Organization: IDACOM Electronics Ltd., Edmonton, Alta.
Lines: 27

In article <1989Sep18.020822.16329@cit5.cit.oz>, jwb@cit5.cit.oz (Jim Breen) writes:
: In article <1167@virtech.UUCP>, dennis@virtech.UUCP (Dennis P. Bednar) writes:
: [...]
: * a level 3 DATA packet and receives a level 3 RR acknowledgement
: * packet from the local IMP (on the left side of the above
: * diagram), it only means that the local IMP has acked the
: * packet, but not necessarily that the remove DTE in the
: * right side of the figure has even received it.  ..........[etc]
: 
: Full 1984/1988 X.25 allows for the "D" bit in the Call Request
: and Data packets to request "Delivery Confirmation". When this
: option is available and used, RR packets advise successful
: receipt by the *remote* DTE, not the local DCE.


Although the spec states that if you use the 'D' bit in a data packet,
I have not run into an actual switch yet that supports this functionality.

This includes some switches that actually implement the '84 standard.

Anyone aware of a switch that implements this function?

-- 
Danny Wilson
IDACOM Electronics		danny@idacom.uucp
Edmonton, Alberta		{att, watmath, ubc-cs}!alberta!idacom!danny
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