Re: Fwd: New Version Notification for draft-wouters-edns-tcp-chain-query-00.txt

Joe Abley <[email protected]>
Newsgroups gmane.ietf.dnsext
Message-ID <[email protected]>
Hey,

Having now spent more than 15 seconds thinking about this...

On 2013-09-11, at 11:54, Paul Wouters <[email protected]> wrote:

> On Wed, 11 Sep 2013, Dave Lawrence wrote:
> 
>> It would be useful to have a way to negotiate the TCP connection
>> behavior, including options like signalling that the server may close
>> the connection as soon as the response is sent, or that the client
>> wants to send more than one request.  I don't think this meaning
>> should be bundled into the DNSSEC chain query option, however.
> 
> I've heard several people tell me this now and I agree. The question is:
> 
> 1) do we want to clarify in a separate draft that the TCP connection
>   can remain open for re-use?

Given that this apparently breaks assumptions already present in widely-deployed software, that sounds like an uphill battle.

> 2) do we want to use another edns0 option to ask the server to keep the

>   TCP connection, which the server indicates by returning this option
>   in its TCP reply?

I think yes, and upon >15 seconds of reflection I can't think of a reason why you'd want such an option to be more general than this specific functionality. Other transport-related signalling can use different edns0 options.

> It seems to be 2) is probably a better idea, and I'm happy to write that
> up in a separate document.

Agree.


Joe
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