I was doing my daily traceroutes to see who was down today, and i noticed
some interesting things. One thing I noticed was that:
c.root-servers.net
e.root-servers.net
g.root-servers.net
i.root-servers.net
all appear to be in the "twd", as well as being in the swamp. A well-known
router vendor's web site also appeared to be in this category.
Now I don't run anything nearing a real router, so I checked
route-server.cerf.net, and sure enough they are being advertised as /24s. I
realize renumbering the root servers is not really a good place to
start.
Yet I think it shows what a massive task we have ahead of us, if
we are to make progress in aggregating 192/8. I also think it would be hard
to convince someone to renumber out of a /24 in 192, when they can say,
"well almost half of the root servers haven't renumbered, why should I?".
Just my observations. I'll crawl back into my little stub of the 'net and
resume being a spectator.
-BD
Now,
to create another sub-thread on this subject...
Bradley Dunn wrote:
Now I don't run anything nearing a real router, so I checked
route-server.cerf.net, and sure enough they are being
advertised as /24s. I realize renumbering the root servers is
not really a good place to start. Yet I think it shows what
a massive task we have ahead of us, if we are to make progress
in aggregating 192/8.
The massive task of aggregation is not only in 192/8. Earlier
today I took a dump of the BGP routing table on the above
mentioned router (thanks to CERFnet!) and threw it at one of my
Perl scripts which produces a report showing the distribution of
prefix lengths for announced routes in each individual /8 block
within the "class C" address space. The result is attached
below. Note that the two "100% announced" entries are due to a
well known jester announcing a couple of /8s... I will however
here repeat the summary for all of the "class C" routes which
shows the total number and the distribution over prefix lengths:
All >=24 /23 /22 /21 /20 /19 /18 /17 /16 </16
#Rts 33220 24504 2388 1785 1170 933 918 486 226 642 168
Anyone for "War on /24"? (Oh, well, probably a lost cause before
it got started...)
- Havard