[e2e] Internet routing table

Greg Skinner gds at gds.best.vwh.net
Tue Jun 28 21:00:30 PDT 2011


On Tue, Jun 28, 2011 at 08:00:25PM -0700, Anoop Ghanwani wrote:
> Thanks to everyone for all the responses and pointers.
> 
> On Tue, Jun 28, 2011 at 6:15 PM, Greg Skinner <gds at gds.best.vwh.net> wrote:
> >
> >
> > If it's BGP routes you're looking for, you probably want to check the
> > looking glasses.
> >
> > http://en.wikipedia.org/wiki/Looking_Glass_servers
> >
> >
> This pretty much is what I'm looking for except that the
> data are weird.  The archives here list only about 65K
> routes:
> http://www-01.pch.net/resources/data/routing-tables/archive/2011/netnod.woodynet.pch.net/
> There may be some kind of truncation problem.
> 
> So then I tried this one:
> http://www-01.pch.net/resources/data/routing-tables/archive/2011/route-collector.ams.pch.net/
> and it lists only ~173K prefixes.
> 
> When I look here
> http://bgp.potaroo.net/
> it seems like I should find on the order
> of 350K prefixes.
> 
> What am I doing wrong?
> 
> Anoop

I checked two of the route servers from the list at the bottom of
http://www.bgp4.as/looking-glasses (namely, Hurricane Electric and the
Oregon Exchange), and "show ip bgp summary" indicates they're getting
full IPv4 tables from (most of) their neighbors.

--gregbo


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