# Re: The Path URN Specification

Daniel LaLiberte (liberte@ncsa.uiuc.edu)
Tue, 21 Mar 95 10:11:20 CST

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    Date: Tue, 21 Mar 95 10:11:20 CST

    From: liberte@ncsa.uiuc.edu (Daniel LaLiberte)

    Message-Id: <9503211611.AA29026@void.ncsa.uiuc.edu>

    To: Rich Salz <rsalz@osf.org>

    Subject: Re: The Path URN Specification

    In-Reply-To: <9503201954.AA23140@sulphur.osf.org>

Rich Salz writes:
> Dan said:
> When you look up a domain name, DNS logically starts at the top of the
> tree and works its way down.

> No, DNS is bottom up.

Right. What I mean by "logically" is if there were no caches, you would
look up a DNS name by starting at the root and working your way down the
tree. Caches let you bypass higher levels so you can start at the
lowest known level. You find cached info in name servers near you, and
climb around and up until you get the info you need.

dan

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