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Article View: comp.protocols.iso.x400
Article #576

Re: X400 address

#576
From: "Paul.Rarey"
Date: Thu, 05 Nov 1992 14:33
59 lines
2699 bytes

> [Discussion of the semantics of ADMD=" " deleted]
> :
> : | I don't know of -any- country where this is actually the case.
> :
> : Mabey  not,  but shouldn't the community at large try to leverage  it
> : into existance?  Wouldn't we be better off for it?
>
> Sure (I would be more than happy if we could get rid of the implicit
> vendor lock in in X.400 and move to a really competitive market), but
> I just see a lot of practical difficulties: for example for ADMD=" "
> to be useful it requires that PRMD names to unique in a country (the bit
> you didn't quote from X.402(88) 18.3.1).

The  Internet  Domain Naming System has similar issues.  All  domains
immediately  under,say, "COM" require unambiguity, but there seems to
be  no real problem there.  Also, COM is international in scope,  not
specific to a country.

All  that  is  really  needed is  a  naming  authority  appropriately
chartered  by  commercial  enterprise or where  necessary,  by  local
government.  I don't mean to over trivialize the issue, but we're not
inventing  something  here.  There is plenty of foundation of how  to
manage unambiguous names within a hierarchy.

> :
> : |   - if they can route to all the recipients of a message (even if
> : |     they are not responsible for the address).
> :
> : Is  it common practice to send probes before any message, or just  if
> : they are over a certain size?
>
> I don't know of any ADMD that uses probes,  the address is considered
> valid if (this is the way PTT ADMD's seem to behave):
>
>   - it is a PRMD in the ADMD with a mta connected to the ADMD.
> or
>   - it is in an ADMD that is connected to the ADMD.

  or

    - it is an ADMD that is "reachable" through interconnectivity and
      "settlement" arrangements.

"Settlement"  in this last bullet is an unfortunate aspect of current
reality.



    Best regards...,


    Paul S. Rarey           DHL Systems Inc.
    Open Systems Research   1700 S Amphlett Blvd  Phn: (415) 358-5522
    Global Communications   San Mateo, CA  94402  FAX: (415) 571-7073

    INet:      Paul.Rarey@ssf-sys.DHL.COM
    X400:      PN=Paul.Rarey;O=SYSTEMS;P=DHL;A=MARK400;C=US
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From: Paul.Rarey@ssf-sys.dhl.com ("Paul.Rarey")
Subject: Re: X400 address
Message-ID: <921105063128.3903@maverick.ssf-sys.DHL.COM>
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Date: 5 Nov 92 14:33:32 GMT