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Sender: |
Revised LISTSERV forum <LSTSRV-L@DEARN> |
Subject: |
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From: |
Roger Fajman <RAF@NIHCU> |
Date: |
Wed, 17 Aug 88 15:52:10 EDT |
Reply-To: |
Revised LISTSERV forum <LSTSRV-L@DEARN> |
Can something be done about this in the link weights file?
The link to Chile is not up 24 hours a day and so should be
avoided unless absolutely necessary. Thanks.
Roger
> Received: from JHUVM(MAILER@JHUVM) by NIHCU (Mailer) id 1952
> Tue, 16 Aug 88 11:44:42 EDT
> Received: by JHUVM (Mailer X1.25) id 8455; Tue, 16 Aug 88 11:44:04 EDT
> Date: Tue, 16 Aug 1988 11:39:30 EDT
> From: Jim Jones <L64A0110@JHUVM>
> Subject: Re: mail delivery error
> To: "Mark F. Haven" <MHQ@NIHCU>
> In-Reply-To: Your message of Mon, 15 Aug 88 09:20:09 EDT
>
>
> >From: "Mark F. Haven" <MHQ@NIHCU>
> >Date: Mon, 15 Aug 88 09:14:21 EDT
> >Subject: Chile is rather distant.
> >
> >This morning I sent a message to your LISTSERV of
> >INFO GENINFO. I received an automated reply that the file
> >LISTSERVMEMO was being sent to me - so far so good. Following
> >this I got 3 lines of a message requesting that I send further
> >requests to my nearest listserv host - problem was that it
> >referred me to my nearest listserv host as being:
> > LISTSERV@UCHCECVM As best I can tell that location is
> >the Universidad de Chile Centro de Computacion! (I suspect
> >there is a closer one (;-).) Just thought you might like to
> >know of the message generated from your site (FYI NIHCU is
> >near Washington, D.C.).
>
> It's odd how these things work sometimes, but to tell you the truth,
> your site may very well be closer to UCHCECVM than JHUVM in some
> sense. Let me explain; a file sent from NIHCU to UCHCECVM passes
> through the following machines: NIHCU--UMDD--UCHCECVM whereas a
> file sent from NIHCU to JHUVM takes the following, longer route of:
> NIHCU--UMDD--UMDB--GWUVM--PSUVMXA--JHUVM
>
> So, even though geographically your much closer to Baltimore than Chile,
> the Chilean node is closer when network links are the deciding factor.
> It's not as simple as counting the number of links, each link is given
> a "weighted" value and these values are summed. If you have troubles
> using the UCHCECVM node (for example if the node is unreachable much of
> the time) please let me know and I'll try to find out how your node can
> be allowed to use a LISTSERV in the US.
>
> It's not that unusual for mail to travel odd paths (geographically that
> is) between two machines. Since there is no centralized control of
> network configuration (anyone can choose to connect to BITNET via any
> other consenting node), BITNET has grown very odd topologically. For
> example, to get from JHU to UMBC2 (which are both in the Baltimore area)
> the route is: JHUVM--PSUVMXA--GWUVM--UMDD--UMDB--UMBC2
>
> -jj
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