[97317] in North American Network Operators' Group
Re: Researchers Chart Internet's 'Black Holes'
daemon@ATHENA.MIT.EDU (Jeroen Massar)
Thu Jun 7 13:06:25 2007
Date: Thu, 07 Jun 2007 18:05:37 +0100
From: Jeroen Massar <jeroen@unfix.org>
To: Hank Nussbacher <hank@efes.iucc.ac.il>
Cc: nanog@MERIT.EDU
In-Reply-To: <Pine.LNX.4.64.0706071944210.21019@efes.iucc.ac.il>
Errors-To: owner-nanog@merit.edu
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Hank Nussbacher wrote:
>=20
> http://www.wired.com/science/discoveries/news/2007/06/hubble
>=20
> "Despite its robust appearance, more than 10 percent of the internet
> flickers out like a candle every day, according to researchers who
> unveiled on Wednesday an experimental tool that probes the network's
> dark places.
[..]
I couldn't make it up from the slides or the terse text, but I am
wondering how much information you can really deduce from BGP, yes it
says "they don't have that prefix", but for the rest, even if an ISP has
a prefix it doesn't mean that any packet can flow from A to B. Doing
traceroutes from a remote site doesn't help as that is just C to A or B.
Better "Internet Hubble Telescopes" are therefor:
RIPE TTM: http://www.ripe.net/test-traffic/
RIPE RIS: http://www.ripe.net/ris/
TTM is deployed globally around the world and does traceroutes/pings/bgp
monitoring and a lot more to see where problems are, you can get a peek
at what it can show you at: http://www.switch.ch/network/ttm/ courtesy
of SWITCH in Switzerland.
If you want an "IPv6 Hubble" you can check up GRH which has provided
that kind of information for quite some time already.
Greets,
Jeroen
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