[comp.mail.uucp] Are pathalias costs unidirectional?

dg@lakart.UUCP (David Goodenough) (11/16/89)

Taking a couple of entries as an example:

lakart	pallio(DAILY)

pallio	lakart(HOURLY)

Do the two different costs make a difference?, i.e. if pathalias is
trying to route FROM lakart to pallio, will it use DAILY or HOURLY?
This comes about as an extension of the fact that I have seen a couple
of instances where a link is shown from one end, but not from the other.
To sum up, does the existance of a link in one direction imply that
an equal cost link exists in the other direction.
-- 
	dg@lakart.UUCP - David Goodenough		+---+
						IHS	| +-+-+
	....... !harvard!xait!lakart!dg			+-+-+ |
AKA:	dg%lakart.uucp@xait.xerox.com			  +---+

davidsen@crdos1.crd.ge.COM (Wm E Davidsen Jr) (11/18/89)

  uucp connections are NOT the same in both directions. For instance,
many sites call sixhub (a) when they have mail, or (b) at long spaced
intervals. Thus from that site to sixhub the cost is DEMAND, while the
other way it is WEEKLY.

  And some site call ONLY on demand, which make the cost back to them
DEAD, since the average time between calls may often be longer than the
expiration time for mail.

  This happens when one site is picking up the phone bills, and explains
why you often can't return mail by reversing the path.
-- 
bill davidsen	(davidsen@crdos1.crd.GE.COM -or- uunet!crdgw1!crdos1!davidsen)
"The world is filled with fools. They blindly follow their so-called
'reason' in the face of the church and common sense. Any fool can see
that the world is flat!" - anon