Hello folks, As part of a research project here at Northwestern, we have found quite a few unexpected AS-level links that do not appear in public available BGP tables. We really need your help in validating them; for anyone who knows links associated with any AS, if you can assist us with this please contact us off list. Thanks! - Kai
On Mar 31, 2009, at 10:56 PM, Kai Chen wrote:
As part of a research project here at Northwestern, we have found quite a few unexpected AS-level links that do not appear in public available BGP tables. We really need your help in validating them; for anyone who knows links associated with any AS, if you can assist us with this please contact us off list.
That's an interesting request. Most network operators know about AS adjacencies, since it is hard to be on the Internet without your AS having a link to at least one other. Do you expect everyone to ping you back? Also, what makes you think all adjacencies appear in "public available BGP tables"? Most do not. This is not surprising, it is expected. I'm interested to know why you think they would. -- TTFN, patrick
This should be a pretty normal thing, not everyone just has transit links... route views only sees about 35 or 40 of our nearly 200 adjacencies and they are pretty comprehensive. There is an argument that you might be better off just emailing the ARIN or peering db contacts of the ASNs you are interested in. Thanks, John van Oppen Spectrum Networks LLC (AS11404) Direct: 206.973.8302 Main: 206.973.8300 Website: http://spectrumnetworks.us -----Original Message----- From: Kai Chen [mailto:kch670@eecs.northwestern.edu] Sent: Tuesday, March 31, 2009 7:56 PM To: nanog@merit.edu Subject: Can you see these AS links:) Hello folks, As part of a research project here at Northwestern, we have found quite a few unexpected AS-level links that do not appear in public available BGP tables. We really need your help in validating them; for anyone who knows links associated with any AS, if you can assist us with this please contact us off list. Thanks! - Kai
And you might want to have a look at: http://www.cs.ucla.edu/~rveloso/papers/completeness.pdf http://www.cs.ucla.edu/~rveloso/papers/completeness_tr.pdf --Ricardo On Mar 31, 2009, at 7:56 PM, Kai Chen wrote:
Hello folks, As part of a research project here at Northwestern, we have found quite a few unexpected AS-level links that do not appear in public available BGP tables. We really need your help in validating them; for anyone who knows links associated with any AS, if you can assist us with this please contact us off list.
Thanks! - Kai
We read and compare our results with the following projs, the new links are those in our dataset not in follows, which is interesting. Note the results come from measurements of extremely large-scale monitors than public available monitors. - Kai On Wed, Apr 1, 2009 at 3:49 AM, Ricardo Oliveira <rveloso@cs.ucla.edu>wrote:
And you might want to have a look at: http://www.cs.ucla.edu/~rveloso/papers/completeness.pdf<http://www.cs.ucla.edu/%7Erveloso/papers/completeness.pdf> http://www.cs.ucla.edu/~rveloso/papers/completeness_tr.pdf<http://www.cs.ucla.edu/%7Erveloso/papers/completeness_tr.pdf>
--Ricardo
On Mar 31, 2009, at 7:56 PM, Kai Chen wrote:
Hello folks,
As part of a research project here at Northwestern, we have found quite a few unexpected AS-level links that do not appear in public available BGP tables. We really need your help in validating them; for anyone who knows links associated with any AS, if you can assist us with this please contact us off list.
Thanks! - Kai
On 4/1/09, Kai Chen <kch670@eecs.northwestern.edu> wrote:
We read and compare our results with the following projs, the new links are those in our dataset not in follows, which is interesting. Note the results come from measurements of extremely large-scale monitors than public available monitors.
- Kai
I confess, those were me--I've been secretly logging into most of the major networks around the world, and have been secretly bringing up new AS adjacencies between them in an effort to improve routing and promote world peace through shared packet infrastructure. If it's a problem, I can just go back and remove them all so your data looks clean again, and conforms to the expected results. Apologies for the confusion. ^_^;; Matt (such an excellent day for a thread such as this! ;)
On Wed, Apr 1, 2009 at 3:49 AM, Ricardo Oliveira <rveloso@cs.ucla.edu>wrote:
And you might want to have a look at: http://www.cs.ucla.edu/~rveloso/papers/completeness.pdf<http://www.cs.ucla.edu/%7Erveloso/papers/completeness.pdf> http://www.cs.ucla.edu/~rveloso/papers/completeness_tr.pdf<http://www.cs.ucla.edu/%7Erveloso/papers/completeness_tr.pdf>
--Ricardo
On Mar 31, 2009, at 7:56 PM, Kai Chen wrote:
Hello folks,
As part of a research project here at Northwestern, we have found quite a few unexpected AS-level links that do not appear in public available BGP tables. We really need your help in validating them; for anyone who knows links associated with any AS, if you can assist us with this please contact us off list.
Thanks! - Kai
participants (5)
-
John van Oppen -
Kai Chen -
Matthew Petach -
Patrick W. Gilmore -
Ricardo Oliveira