Can you see these AS links:)

Mailman List Mirror (Read Only)
1

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

2

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.

3

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

4

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

5

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

6

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! :wink: