On Mar 5, 2013, at 9:45 AM, Joe Abley <jab...@hopcount.ca> wrote:

> 
> On 2013-03-05, at 12:09, Paul Hoffman <paul.hoff...@vpnc.org> wrote:
> 
>> On Mar 5, 2013, at 9:05 AM, Joe Abley <jab...@hopcount.ca> wrote:
>> 
>>> I presume this has already come up, and there are good reasons why the 
>>> apparent lexical flexibility in what I'm about to suggest are swamped by a 
>>> sea of vicious snakes, but if the goal is "transmitting general information 
>>> to the parent which in some cases they might care about" why not think 
>>> about a more general RRType of the form
>>> 
>>> ; zone cut
>>> example.com. IN SOA ...
>>> ;
>>> example.com. IN PARENT SOMERRTYPE rrtype-specific-data...
>>> . . .
>> 
>> +1
> 
> I thought of that approach too, but it seems inadequate for the purposes of 
> signalling candidate glue to a parent (there's no obvious way to encode an 
> owner name, and the owner name is necessary with glue, unlike NS or DS 
> RRSets).
> 
> I guess another approach for that particular problem is to note the child's 
> desired NS set and then use local policy to acquire secure answers for glue 
> records where needed.

That seems sufficient. That is, the child doesn't get to say "this is the 
glue", but the parent can decide where to look for glue.

--Paul Hoffman
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