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Re: [DNSOP] [dnsext] Re: Computerworld apparently has changed DNS protocol

Nicholas Weaver <nweaver@ICSI.Berkeley.EDU> Wed, 04 November 2009 19:42 UTC

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From: Nicholas Weaver <nweaver@ICSI.Berkeley.EDU>
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Date: Wed, 04 Nov 2009 11:43:11 -0800
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To: Matthew Dempsky <matthew@dempsky.org>
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Cc: dnsop@ietf.org, namedroppers@ops.ietf.org, bmanning@vacation.karoshi.com, Nicholas Weaver <nweaver@ICSI.Berkeley.EDU>, Alfred HÎnes <ah@tr-sys.de>
Subject: Re: [DNSOP] [dnsext] Re: Computerworld apparently has changed DNS protocol
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On Nov 4, 2009, at 11:41 AM, Matthew Dempsky wrote:

> On Wed, Nov 4, 2009 at 11:26 AM,  <bmanning@vacation.karoshi.com>  
> wrote:
>>        The current deployment plan is to stage things to push out  
>> large responses
>>        early - prior to having any actual DNSSEC usable data ...  
>> ostensibly to
>>        flush out DNSmtu problems.
>
> Is this plan to push out large responses indiscriminately, or only in
> response to queries with DO=1?

Also, has someone done a study what the major recursive resolvers do  
on response failures from a root?  Do they go to another first or do  
they try a smaller EDNS MTU?

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