[dns-operations] who cares about RA bit

[Edward Lewis]

At 16:49 +0800 6/16/11, ¡žñæêØÅFÅj wrote:
we know that the recursor sets RA bit in the 
responses to the queries from its clients.
I wonder if  the clients care about the bit and when.

IANA's TLD delegation looks for it as well as 
other debugging and checking scripts.

On 
http://www.iana.org/procedures/nameserver-requirements.html, 
see item 2.11.2.

It's fairly important when debugging DNS 
operations.  I can say that from experience. 
Other than checking for it as part of DNS 
management, I don't know that it plays any other 
role.  I doubt stubs look at the flags.
-- 
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Edward Lewis             
NeuStar                    You can leave a voice message at +1-571-434-5468

I'm overly entertained.
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