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From: earle@smeagol.UUCP
Newsgroups: comp.mail.uucp,comp.mail.misc
Subject: Suggestions for assigning pathalias value for grey-area connectivity
Message-ID: <804@smeagol.JPL.NASA.GOV>
Date: Mon, 2-Feb-87 04:35:46 EST
Article-I.D.: smeagol.804
Posted: Mon Feb  2 04:35:46 1987
Date-Received: Tue, 3-Feb-87 07:07:11 EST
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Xref: watmath comp.mail.uucp:218 comp.mail.misc:67

Informal survey:
You have a script set up to poll systems once each hour, invoked from cron
between Midnight and 8 AM.  In the script, you only poll a system if there
is a workfile for it.  Meanwhile, you have your UUCP mailer set up so that it 
(eventually) calls uux with the "don't start uucico, just queue the job" flag.

For example, I have ihnp4 polled this way.

Now the problem is, what do you assign to these sites for pathalias cost data?
DEMAND only makes sense (to me) if you have it so that *anytime* there is
outgoing traffic, uucico is called.  Here, it's only allowed in the evening,
not anytime.  By the same reasoning, EVENING is wrong also, since there's no
guarantee that the site will even be called at all (in fact, it might not even
be called the whole week, if there's no traffic!)

Since DEMAND is 500, and EVENING is 1800, it would seem some value in between
would be `correct'.  The pathalias man page isn't helpful; in fact, it says :
`E.g., if a host calls a local neighbor whenever there is work, and 
additionally polls every evening, the cost is DIRECT, not DIRECT+EVENING.'
whereas *I* would believe a connection like this would be DEMAND+HIGH or 
something.

What do YOU think?  Replies to me via email ; I will summarize.

Thanks,
-- 
	Greg Earle	UUCP: sdcrdcf!smeagol!earle; attmail!earle
	JPL		ARPA: elroy!smeagol!earle@csvax.caltech.edu
AT&T: +1 818 354 4034	      earle@jplpub1.jpl.nasa.gov (For the daring)
I'm using my X-RAY VISION to obtain a rare glimpse of the INNER WORKINGS of     this POTATO!!