I thought AS5397 said it was a limited test back in Feb 2005?

Lorenzo Colitti colitti at dia.uniroma3.it
Fri Apr 22 02:39:09 CEST 2005


Daniel Roesen wrote:
> On Wed, Apr 20, 2005 at 10:07:03AM +0300, Hank Nussbacher wrote:
> 
>>They are at it again:
>>
>>Apr 19 17:36:10 gp1 2117: Apr 19 17:36:09: %BGP-6-ASPATH: Long AS path 
>>20965 1299 3320 15589 15589 5397 
>>{33,109,145,278,293,513,559,1257,1275,1752,1853,2042,2497,2500,2607,2914,3257,3265,3292,3352,3425,3549,3748,3786,4691,4697,4716,4725,5609,5623,6175,6320,6342,6435,6830,6939,7033,8447,10566,12779,13944,14277,17715,17965,24136,24895,29686,31103,32266} 
>>received from 2001:798:201B:10AA::1: More than configured MAXAS-LIMIT
> 
> 
> Lorenzo,
> 
> in a 2005-03-01 posting to {nanog at merit.edu, routing-wg at ripe.net,
> ris-users at ripe.net} you've announced the plan to do those experiments
> in IPv4 world and you heard a lot of concerns. In the same mail you
> wrote "We have been performing similar experiments over IPv6, in
> collaboration with the NAMEX internet exchange, since December 2004
> with no ill effects".
> 
> I guess what Hank sees is exactly that, can you confirm?
> 
> The thread concluded that your group will come up with a document
> explaining the technique and why it won't harm. "Once it is ready we
> will post a link to this list and elsewhere so people can comment on it,
> discussion can continue, and hopefully aconsensus can be found on the
> use of the techniques. We hope to have something ready in two to three
> weeks.".
> 
> By these words, I do understand that you cease those experiments until
> consensus is reached.
> 
> I'm not able to find any later posting from you that publishes the
> document, or any discussion.
> 
> So I wonder why you continue those experiments in IPv6? The IPv6 DFZ
> ain't a playground, not more than the IPv4 DFZ.
> 
> Please let us know what's going on there. Thanks!

Hi Daniel,

apologies for not replying to this, but unfortunately Hank did not CC 
either our research group or the admins of AS5397, so I did not receive 
the email directly, and I am not subscribed to the list.

Those AS-sets do indeed come from us. We announced them because we are 
finalizing the document that describes our techniques and we needed 
another set of experimental results to confirm their effectiveness.

We know the IPv6 network is not a playground, but we are confident of 
the safety of our techniques. This is not only because we have tested 
them in the lab on real-world equipment, but also because, as my 
original posting said, we tested them in the IPv6 network for several 
months and saw no negative effects. Actually, nobody even noticed until 
our experiments were almost over.

The document is almost ready and should be available soon, hopefully in 
a few days' time.



Regards,
Lorenzo

-- 
---------------------------------------------------------
Lorenzo Colitti                              Ph.D student
Computer Networks research group      Roma Tre University
colitti at dia.uniroma3.it                    +39-0655173215
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