[afnog] Fwd: Announcing long AS-sets tomorrow

[McTim]

Apologies for duplicates.

This mail was sent to NANOG and routing-wg at ripe.net lists, and I
thought it might be smt African operators should be aware of as well.

The urls explain what the experiment is about.


---------- Forwarded message ----------
From: Lorenzo Colitti <lorenzo at ripe.net>
Date: Jun 15, 2005 12:27 PM
Subject: Announcing long AS-sets tomorrow
To: nanog at merit.edu, routing-wg at ripe.net
Cc: Henk Uijterwaal <henk at ripe.net>, compunet at dia.uniroma3.it


Hi,

as part of our AS-set stuffing experiments (announced, including links
to in-depth information, in [1]), we will be announcing unusually large
AS-sets tomorrow, Thursday 16 June.

The prefixes involved will be 84.205.73.0/24 and 84.205.89.0/24, both
orignating in AS12654. The AS-sets will consist of AS12654 repeated n
times, thus the paths will look like 12654 {12654, 12654, ..., 12654}.
No other AS numbers will be used. The values of n we will use are 25,
50, 75 and 100.

The announcements are designed to discover how far large AS-sets are
propagated, and thus how effective our techniques can be, in today's
Internet with today's IPv4 operational practices. This is *not* a test
to see if routers will fall over: we have successfully tested longer
AS-sets in the lab on both Cisco and Juniper, and longer AS-paths and
AS-sets have been observed in the wild [2,3]. See [1] for more
information on the safety of these announcements.

The proposed schedule is as follows:

              84.205.73.0/24      84.205.89.0/24
14:00 UTC:   25-element AS-set   50-element AS-set
14:30 UTC:      withdrawal          withdrawal

16:00 UTC:   75-element AS-set  100-element AS-set
16:30 UTC:      withdrawal          withdrawal

If anyone should see a problem during the announcements, please contact
me and I will take immediate action.


Regards,
Lorenzo


[1] http://www.merit.edu/mail.archives/nanog/2005-06/msg00210.html
[2] http://www.ripe.net/projects/ris/Talks/0101_RIPE38_AA/sld003.html
[3] http://www.ripe.net/maillists/ncc-archives/ris-users/2002/msg00044.html

--
lorenzo at ripe.net                  colitti at dia.uniroma3.it
www.ripe.net                www.dia.uniroma3.it/~compunet
RIPE NCC        Roma Tre Computer Networks research group



-- 
Cheers,

McTim
nic-hdl:      TMCG