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Article View: comp.protocols.iso.x400
Article #824

Re: Quality of Service Definitions

#824
From: Harald Tveit Alvestrand
Date: Sat, 04 May 1991 02:20
35 lines
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In article <24549@well.sf.ca.us>, decwrl!well.sf.ca.us!well!drlove@uunet.uu.net ("David R. Love") writes:
|>
|>
|> In the Stable Implementation Agreements there are two tables
|> related to the Quality of Service.  These provide Delivery Time
|> Targets and Forced Nondelivery Times.  The times provided are
|> provided in the absence of any standardized QOS parameters.
|> My question regards the note that follows the tables.  It states
|> that "Both tables apply to the period between acceptance by the
|> originating MTA in the originating Administration domain to the
|> time of delivery in the destination Administration domain.  Trnasit
|> time within PRMDs is NOT included in the above times.
|> "
Given that the Implementation Agreements, like the original standards,
are written from a PTT point of perspective, I think it is pretty clear.

If you have


    User -> PRMD -> ADMD -> ADMD -> PRMD -> User
         (1)     (2)     (3)     (4)     (5)

the time is measured from (2) to (4).
The PTTs care only about what they can be held responsible for, and will
write off responsibility for anything they can get away with.
In this case, they have said that they only want to care about delay that
occurs within their club, and not within the "untrustworthy" PRMDs.
Whether they in fact follow their own definition or not, is another thing
entirely.


                   Harald Tveit Alvestrand
Harald.Alvestrand@delab.sintef.no
C=no;PRMD=uninett;O=sintef;OU=delab;S=alvestrand;G=harald
+47 7 59 70 94
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!jarthur!ucivax!gateway
From: hta@isolde.er.sintef.no (Harald Tveit Alvestrand)
Newsgroups: comp.protocols.iso.x400
Subject: Re: Quality of Service Definitions
Message-ID: <1991May3.094921.12261@ugle.unit.no>
Date: 4 May 91 02:20:37 GMT
References: <24549@well.sf.ca.us>
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