6453 routing leaks (January and Today)

Jared Mauch jared at puck.nether.net
Thu Feb 24 15:59:52 CST 2011


It appears there have been a large number of routing leaks from 6453 today based on my detection scripts that have been running.

(shameless plug for http://puck.nether.net/bgp/leakinfo.cgi)

A quick report of the data show (for today so far) a few thousand of leaks more than is normal for a day like today.  I included a snapshot of yesterday below as well.

I've included a more detailed report of the prefixes observed involved here: 

http://puck.nether.net/~jared/tata-leak-20110224.txt

This seems to be a somewhat common event for 6453, loking through the history of data available, another event happened on 2011-01-28 as well.

I'm interested in what best operational practices people have employed to help avoid the leaks seen here so I can document them for others to learn to prevent this from happening again.

- Jared

bgp=# select count(blame_asn),blame_asn,asn_responsible from leakinfo where aprox_time::date = '2011-02-24' group by blame_asn,asn_responsible order by 1 desc;
 count | blame_asn | asn_responsible 
-------+-----------+-----------------
  2208 | 6453      | 6453
   360 | 7473      | 3257
   230 |           | 
   170 | 17379     | 5511
   130 | 8068      | 3356
    39 | 3225      | 6453
    34 | 45419     | 3356
    26 | 3356      | 3356
    25 | 12180     | 2828
    18 | 22351     | 701
    16 | 7991      | 2914
    16 | 14051     | 1239
    10 | 29571     | 5511
     4 | 32327     | 2828
     4 | 8966      | 2914
     4 | 19080     | 1239
     4 | 30209     | 7018
     4 | 18734     | 701
     4 | 4657      | 3320
     3 | 33748     | 1239
     2 | 5056      | 1239
     2 | 10026     | 2828
     2 | 12252     | 2914
     1 | 11696     | 2828
(24 rows)

bgp=# select count(blame_asn),blame_asn,asn_responsible from leakinfo where aprox_time::date = '2011-02-23' group by blame_asn,asn_responsible order by 1 desc;
 count | blame_asn | asn_responsible 
-------+-----------+-----------------
   384 | 7473      | 3257
   120 | 17379     | 5511
    48 |           | 
    27 | 45419     | 3356
    24 | 12180     | 2828
    11 | 23456     | 2914
(6 rows)

bgp=# select count(blame_asn),blame_asn,asn_responsible from leakinfo where aprox_time::date = '2011-01-28' group by blame_asn,asn_responsible order by 1 desc;
 count | blame_asn | asn_responsible 
-------+-----------+-----------------
  9119 | 6453      | 6453
  2265 |           | 
   355 | 2914      | 2914
   313 | 7473      | 3257
   250 | 17379     | 5511
   213 | 32592     | 701
   106 | 3790      | 1239
    72 | 19108     | 6461
    62 | 14051     | 1239
    51 | 34977     | 6453
    48 | 31133     | 3356
    47 | 8657      | 174
    32 | 7713      | 2914
    31 | 1257      | 1239
    31 | 8966      | 2914
    30 | 30209     | 7018
    30 | 31133     | 1299
    29 | 8342      | 1239
    24 | 38925     | 3320
    24 | 12180     | 2828
    22 | 8657      | 3549
    21 | 15641     | 3549
    18 | 31133     | 2914
    16 | 15412     | 2914
    15 | 7473      | 3549
    10 | 6762      | 1299
    10 | 6762      | 7018
    10 | 20299     | 1239
    10 | 6762      | 3561
    10 | 6762      | 174
     9 | 4323      | 2914
     7 | 26163     | 6461
     7 | 9505      | 174
     7 | 15149     | 6461
     7 | 9070      | 3549
     7 | 7819      | 6461
     6 | 7473      | 174
     6 | 3216      | 3549
     6 | 1273      | 174
     5 | 8657      | 3356
     5 | 26769     | 3549
     5 | 6762      | 2914
     5 | 6762      | 3356
     4 | 8047      | 701
     4 | 8877      | 174
     4 | 174       | 174
     2 | 20299     | 174
     2 | 7843      | 174
     2 | 7473      | 6453
     2 | 8928      | 3320
     2 | 7991      | 2914
     1 | 1273      | 3549
     1 | 20485     | 2914
     1 | 3216      | 1239
(54 rows)





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