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Re: Abovenet BGP upgrade problems

  • From: Majdi S. Abbas
  • Date: Tue Feb 13 16:58:08 2001

On Tue, Feb 13, 2001 at 04:15:08PM -0500, jfielding@ixl.com wrote:
> open with Abovenet for over 24 hrs.  They added the networks that I
> complained about to their advertisement, but I don't know how to get a diffs
> of the 10,000 networks that I'm missing.

	Whether or not you are missing networks probably depends on your
perspective:

route-views.oregon-ix.net>sh ip bgp summ
Neighbor        V    AS MsgRcvd MsgSent   TblVer  InQ OutQ Up/Down  State/PfxRcd
4.0.0.2         4     1  568948    6906  6971071    0    0 1d08h       95355
12.127.0.249    4  7018  663763    6905  6971071    0    0 1d00h       95065
134.24.127.30   4  1740  524953    6899  6971071    0    0 1d08h       95194
144.228.241.81  4  1239  651844    6901  6971071    0    0 1d08h       95395

	BBN, ATT, ATT CERFnet, and Sprintlink appear to consider what you
are receiving a full table.

	Verio considers 93,000 prefixes to be 10,000 /more/ than a full
table (See Randy's post of a few days ago):

204.42.253.253  4   267  731675    6881  6971912    0    0 1d08h       83878
204.212.44.131  4   234  275728    6913  6971912    0    0 1d08h       83710

	In any providers advertisements, there is going to be a certain bit
of fuzz (internal networks, some deaggregates, and other things) that they
advertise to transit customers but are not seen by the world.  For example,
downstream customers of, say, UUnet or Telia will easily see more than 100k
prefixes currently, but peers will not see many of those internal routes
and deaggregates.  

	Telia is currently advertising 100-112k prefixes:

route-views.oregon-ix.net>sh ip bgp summ | incl 1221
203.62.248.4    4  1221  968651    6910  6975582    0    0 1d08h      100315
203.62.252.21   4  1221  807027    6899  6975582    0    0 1d08h      112352

	So, it's really a matter of perspective.  If you are still having
reachability problems, I'm sure AboveNet would be happy to take a look at
it and fix that for you.  If you're just looking for 'missing prefixes,'
I'm not sure that you really are missing anything.

	--msa





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