nanog mailing list archives

51923 prefixes not announced in the last 3 months.


From: Curtis Villamizar <curtis () brookfield ans net>
Date: Thu, 21 May 1998 14:46:07 -0400



Just an FYI-

Please see:

  http://engr.ans.net/route-dumps/problem-summary.html

            51923 prefixes in the IRR that have not been announced in
            the last 3 months.

      7328 registered and never announced 
                This is the list of prefixes that are registered in
                the IRR but have not been announced in the last three
                months. If these are no longer used, deleting the
                route objects is very easy.
                        <http://engr.ans.net/route-dumps/orphans.html>

      44595 never announced but aggregated
                This is the list of prefixes that are registered in
                the IRR but have not been announced in the last three
                months but are likely to still be reachable since and
                aggregate is announced. The route objects can be
                deleted, marked as withdrawn, or using RPSL, the
                aggregate can be marked to limit the scope of the more
                specific routes.
                        <http://engr.ans.net/route-dumps/leaks.html>

Reports are broken down by origin AS:

  http://engr.ans.net/route-dumps/orphans.html

        There were 7328 prefixes that are registered in the IRR but
        have not been announced and recorded in the route dumps taken
        during the past 3 months. Route dumps are taken at all border
        routers within ANS every 1-2 days.

        Below is the set of 914 origin AS under which these route
        objects are registered.  [ ... table follows ... ]

  http://engr.ans.net/route-dumps/leaks.html

        There were 44595 prefixes that are registered in the IRR but
        have not been announced and recorded in the route dumps taken
        during the past 3 months, but are covered by an announced
        aggregate. These prefixes are likely to be due to previously
        registered and announced prefixes that are now aggregated and
        no longer individually announced. Route dumps are taken at all
        border routers within ANS every 1-2 days.

        Below is the set of 1417 origin AS under which these route
        objects are registered.  [ ... table follows ... ]

Please clean up your own origin AS.  We'll be cleaning up the no
longer announced prefixes in our origin AS and customer AS.

Thanks in advance,

Curtis

ps- flames to /dev/null please.


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