Article View: comp.protocols.iso.x400
Article #576Re: X400 address
From: "Paul.Rarey"
Date: Thu, 05 Nov 1992 14:33
Date: Thu, 05 Nov 1992 14:33
59 lines
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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
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Date: 5 Nov 92 14:33:32 GMT