nanog mailing list archives

Re: The Cidr Report


From: Randy Bush <randy () psg com>
Date: Fri, 12 Nov 2004 17:10:21 -0800


ASnum    NetsNow NetsAggr  NetGain   % Gain   Description

AS18566      751        6      745    99.2%   CVAD Covad Communications
AS4134       825      178      647    78.4%   CHINANET-BACKBONE
                                               No.31,Jin-rong Street
AS4323       794      223      571    71.9%   TWTC Time Warner Telecom
AS6197       814      430      384    47.2%   BNS-14 BellSouth Network
                                               Solutions, Inc
AS22773      401       17      384    95.8%   CXA Cox Communications Inc.
AS27364      413       45      368    89.1%   ARMC Armstrong Cable Services
AS701       1230      884      346    28.1%   UU UUNET Technologies, Inc.
AS22909      412       81      331    80.3%   CMCS Comcast Cable
                                               Communications, Inc.
e.g. is AS18566 the origin AS for 751 prefixes that could be
collapsed to 6?

not to justify the expense, but perhaps covad is renumbering from one
block to another? Looking at their advertisments I see lots of /23 or /24
blocks inside their larger covering routes... So either they deaggregated
to renumber more gracefully, or they forgot their prefix-list outbound to
williams and exodus ?

perhaps covad can explain? or silently cover up the 'mistake' (which is
acceptable as well...)

it's not just covad.  they're just such an egregious case among
many socially and technically irresponsible polluters.

randy


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