Re: [PATCHES] Patch for UUID datatype (beta) - Mailing list pgsql-hackers

From mark@mark.mielke.cc
Subject Re: [PATCHES] Patch for UUID datatype (beta)
Date
Msg-id 20060920013913.GA22242@mark.mielke.cc
Whole thread Raw
In response to Re: [PATCHES] Patch for UUID datatype (beta)  (Andrew - Supernews <andrew+nonews@supernews.com>)
Responses Re: [PATCHES] Patch for UUID datatype (beta)  (Gregory Stark <gsstark@mit.edu>)
List pgsql-hackers
On Tue, Sep 19, 2006 at 10:02:40PM -0000, Andrew - Supernews wrote:
> On 2006-09-19, mark@mark.mielke.cc <mark@mark.mielke.cc> wrote:
> > Different UUID forms can be unique within their domain. As long as I
> > control the MAC address assignment for all of my units, my MAC address
> > can be guaranteed to be unique across space and time,
> You do not know (and can never know) that no-one else is using the same
> MAC address. Anyone with substantial experience in networking will tell
> you that the supposed "uniqueness" of manufacturer-assigned MACs is often
> a myth, with (in extreme cases) entire batches of NICs being manufactured
> with the same assigned MAC.

I have the impression I'm not being heard.

*I* control the MAC address assignment for all of *MY* units.

Clear? :-)

Cheers,
mark

-- 
mark@mielke.cc / markm@ncf.ca / markm@nortel.com     __________________________
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