Re: L-Root address change [Re: [DNSOP] AS112 for TLDs]

2007-11-28 Thread bert hubert
On Wed, Nov 28, 2007 at 10:55:44AM +0100, Peter Koch wrote:
 On Tue, Nov 27, 2007 at 02:35:29PM -0800, John Crain wrote:
 
  Currently about 60% New IP to 40% old IP... and rising slowly
  
  So clearly a lot of folks still need to up date their hints files :(
 
 part of that traffic will be due to old hints files, but priming was
 actually supposed to accelerate the migration.  40% of total L traffic
 seems a bit much for 1/13 of the priming traffic?

There is a bug in all current PowerDNS recursor versions where it neglects
to erradicate the contents of the hints file from its cache.

This means that both the old and the new IP address of l.root-servers.net
will continue to be used, until the hints file expires from the cache, which
is sadly only after 40 days of uptime.

I apologise for this bug, and promise that a fixed PowerDNS recursor will be
released swiftly.

However, I don't think 40% of the world is running the PowerDNS Recursor, so
there must be something else to blame, as well.

Bert

-- 
http://www.PowerDNS.com  Open source, database driven DNS Software 
http://netherlabs.nl  Open and Closed source services

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Re: L-Root address change [Re: [DNSOP] AS112 for TLDs]

2007-11-28 Thread Matt Larson
On Wed, 28 Nov 2007, Peter Koch wrote:
 On Tue, Nov 27, 2007 at 02:35:29PM -0800, John Crain wrote:
 
  Currently about 60% New IP to 40% old IP... and rising slowly
  
  So clearly a lot of folks still need to up date their hints files :(
 
 part of that traffic will be due to old hints files, but priming was
 actually supposed to accelerate the migration.  40% of total L traffic
 seems a bit much for 1/13 of the priming traffic?

Why old root server IP addresses recieve so much traffic is a great
mystery and has been for several years.  We addressed this in 2004 in
the Life and Times of J-root presentation for NANOG 32:

  http://www.nanog.org/mtg-0410/pdf/kosters.pdf

Note that at the time, I fingerprinted the responsive queriers and
many were late-model BIND, all of which are known to prime.

As I write this, J root's old IP address is receiving 1000 queries per
second and that's over five years after we changed its address.
Perhaps this is some sort of DNS equivlanet to cosmic background
radiation, dating back the beginning of the Internet?

Matt

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Re: L-Root address change [Re: [DNSOP] AS112 for TLDs]

2007-11-28 Thread bmanning
On Wed, Nov 28, 2007 at 10:58:17AM -0500, Matt Larson wrote:
 On Wed, 28 Nov 2007, Peter Koch wrote:
  On Tue, Nov 27, 2007 at 02:35:29PM -0800, John Crain wrote:
  
   Currently about 60% New IP to 40% old IP... and rising slowly
   
   So clearly a lot of folks still need to up date their hints files :(
  
  part of that traffic will be due to old hints files, but priming was
  actually supposed to accelerate the migration.  40% of total L traffic
  seems a bit much for 1/13 of the priming traffic?
 
 Why old root server IP addresses recieve so much traffic is a great
 mystery and has been for several years.  We addressed this in 2004 in
 the Life and Times of J-root presentation for NANOG 32:
 
   http://www.nanog.org/mtg-0410/pdf/kosters.pdf
 
 Note that at the time, I fingerprinted the responsive queriers and
 many were late-model BIND, all of which are known to prime.
 
 As I write this, J root's old IP address is receiving 1000 queries per
 second and that's over five years after we changed its address.
 Perhaps this is some sort of DNS equivlanet to cosmic background
 radiation, dating back the beginning of the Internet?
 
 Matt
 

and perhaps more interesting, the old address for B
showed a tapering off of traffic and then an INCREASE
last year.   Old L and J got their numbers less than a
decade ago.  ...  so i would not go back as far as the
begining of the Internet.  Old B has been around for quite
a while longer.

--bill

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Re: L-Root address change [Re: [DNSOP] AS112 for TLDs]

2007-11-28 Thread bmanning
On Wed, Nov 28, 2007 at 05:15:59PM +0100, bert hubert wrote:
 On Wed, Nov 28, 2007 at 04:07:59PM +, [EMAIL PROTECTED] wrote:
  and perhaps more interesting, the old address for B
  showed a tapering off of traffic and then an INCREASE
  last year.   Old L and J got their numbers less than a
  decade ago.  ...  so i would not go back as far as the
  begining of the Internet.  Old B has been around for quite
  a while longer.
 
 The increase in traffic might easily be due to more favourable connectivity
 to 'B', which would lead many resolver implementations to shift more queries
 to it.
 
   Bert
 

old B topolgy didnt change... :)

--bill

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Re: L-Root address change [Re: [DNSOP] AS112 for TLDs]

2007-11-28 Thread bert hubert
On Wed, Nov 28, 2007 at 04:22:41PM +, [EMAIL PROTECTED] wrote:
  The increase in traffic might easily be due to more favourable connectivity
  to 'B', which would lead many resolver implementations to shift more queries
  to it.
  
  Bert
  
 
   old B topolgy didnt change... :)

Admittedly, you have a far better view of the internet than I do :-) - But
I'm not ruling out changes *other* people made to their networks.

Also, perhaps the other roots just became less attractive.

Bert

-- 
http://www.PowerDNS.com  Open source, database driven DNS Software 
http://netherlabs.nl  Open and Closed source services

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