On Tue, May 27, 2014 at 12:57:01PM -0700, Nicholas Weaver wrote:
> Using an EDNS0 bit however, does not makes sense to me.  Flag bits are
> rare and precious, while 16b option codes are not.

I was expecting this feedback, and am entirely prepared to redraft
using an EDNS option if (when?) that turns out to be the group consensus,
but I decided to ask for what I want first and get shot down rather than
assume in advance that there was no chance. :)

At the going rate of 1 EDNS bit allocated per 15 years of EDNS existence,
we have enough to last until the year 2239, at which time an EDNS version
bump could allocate more of them.  So I concur with "rare", but not
necessarily with "precious".

However, there is no technical reason a flag bit is necessary. I just
think it's more elegant.

-- 
Evan Hunt -- e...@isc.org
Internet Systems Consortium, Inc.

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