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BGP Update Report

BGP Update Report
Interval: 13-Aug-09 -to- 20-Aug-09 (7 days)
Observation Point: BGP Peering with AS131072

TOP 20 Unstable Origin AS
Rank ASN                Upds     %  Upds/Pfx    AS-Name
 1 - AS4961           516762  6.6%    6379.8 -- DISC-AS-KR Daewoo Information System
 2 - AS9767           323141  4.1%    8733.5 -- DONGBUIT-AS-KR Dongbulife Insurance co.,LTD
 3 - AS18157          219917  2.8%    8796.7 -- CHUNGJU-AS-KR chungju university
 4 - AS9459           204123  2.6%    8874.9 -- ASKONKUK Konkuk University
 5 - AS9956           201087  2.6%    8742.9 -- KONGJU-AS kongju national university
 6 - AS9686           194396  2.5%    8836.2 -- SKKUNET-AS SungKyunKwan University (SKKU)
 7 - AS23716          154216  2.0%    5507.7 -- CHANGWON23716-AS-KR Changwon College
 8 - AS10159          149403  1.9%    5976.1 -- HAUNET-AS-KR HANKUK Aviation University
 9 - AS9530           135249  1.7%    7118.4 -- SHINSEGAE-AS SHINSEGAE I&C Co., Ltd.
10 - AS9628           122729  1.6%    6459.4 -- SSEM-AS-KR Seoul Education Science Research Institute
11 - AS9868            99583  1.3%    7113.1 -- CUTH-AS Catholic University of DAEGU
12 - AS10088           96758  1.2%    8063.2 -- KWANGWOON-UNIV-AS-AP KWANGWOON University in Seoul, Korea
13 - AS18027           88348  1.1%    8834.8 -- NSU-AS-KR namseoul university
14 - AS18023           87965  1.1%    3518.6 -- KMU-AS-KR Korea Maritime University
15 - AS18026           87648  1.1%    8764.8 -- CHEJU-AS-KR Cheju University
16 - AS17865           87569  1.1%    7960.8 -- SCOURT-AS-KR Supreme Court of Korea
17 - AS10045           80256  1.0%    8917.3 -- TNUTNET-AS HANBAT NATIONAL UNIVERSITY
18 - AS9970            79372  1.0%    8819.1 -- KUT-AS Korea University of Technology and Education
19 - AS10176           79196  1.0%    8799.6 -- TENET-AS Taejon Institute of Education Science
20 - AS7557            79010  1.0%    8778.9 -- KTNET-AS Korea Trade Network


TOP 20 Unstable Origin AS (Updates per announced prefix)
Rank ASN                Upds     %  Upds/Pfx    AS-Name
 1 - AS9456             8920  0.1%    8920.0 -- POSCO-AS POSCO
 2 - AS10045           80256  1.0%    8917.3 -- TNUTNET-AS HANBAT NATIONAL UNIVERSITY
 3 - AS9846             8908  0.1%    8908.0 -- FIRSTDATA-AS-KR FDIK
 4 - AS17840            8890  0.1%    8890.0 -- KOREACERT-AS-KR KECA, Inc.
 5 - AS9571            17776  0.2%    8888.0 -- INICIS-AS INICIS Co., Ltd
 6 - AS17600            8883  0.1%    8883.0 -- ENVICO-AS-KR Korea Environment & Resources Corporation
 7 - AS10042           17764  0.2%    8882.0 -- DPC-AS-KR DAEGU POLYTECHNIC COLLEGE
 8 - AS9459           204123  2.6%    8874.9 -- ASKONKUK Konkuk University
 9 - AS10055           35488  0.5%    8872.0 -- KORAIL-AS-KR Korean National Railroad Administration
10 - AS10058           26615  0.3%    8871.7 -- CU-AS-KR NACUFOK
11 - AS23983           26613  0.3%    8871.0 -- DJU-AS-KR Daejeon University
12 - AS23557            8848  0.1%    8848.0 -- YUHWA-AS-KR Yuhwa Securities Co., LTD
13 - AS23573           26532  0.3%    8844.0 -- OCIC-AS-KR OCI Information Communication
14 - AS18324           53042  0.7%    8840.3 -- MASANC-AS-KR Masan College
15 - AS23562           17674  0.2%    8837.0 -- BCRC-AS-KR Busan Cycle Racing Corporation
16 - AS9686           194396  2.5%    8836.2 -- SKKUNET-AS SungKyunKwan University (SKKU)
17 - AS18027           88348  1.1%    8834.8 -- NSU-AS-KR namseoul university
18 - AS17601           17664  0.2%    8832.0 -- KCGF-AS-KR KOREA CREDIT GUARANTEE FUND
19 - AS18319           61824  0.8%    8832.0 -- YJNET-AS-KR Yeungnam College of Science & Technology
20 - AS9452             8829  0.1%    8829.0 -- KUNET-AS Korea University


TOP 20 Unstable Prefixes
Rank Prefix             Upds     % Origin AS -- AS Name
 1 - 210.90.28.0/24     8941  0.1%   AS23568 -- CRA-AS-KR Cycle Racing Association
 2 - 163.239.192.0/20   8925  0.1%   AS3813  -- SOGANG-AS-KR sogang university
 3 - 163.239.208.0/21   8923  0.1%   AS3813  -- SOGANG-AS-KR sogang university
 4 - 163.239.128.0/18   8923  0.1%   AS3813  -- SOGANG-AS-KR sogang university
 5 - 163.239.0.0/17     8923  0.1%   AS3813  -- SOGANG-AS-KR sogang university
 6 - 210.110.248.0/22   8922  0.1%   AS10045 -- TNUTNET-AS HANBAT NATIONAL UNIVERSITY
 7 - 210.98.40.0/22     8920  0.1%   AS10045 -- TNUTNET-AS HANBAT NATIONAL UNIVERSITY
 8 - 203.246.186.0/24   8920  0.1%   AS9456  -- POSCO-AS POSCO
 9 - 210.119.112.0/24   8920  0.1%   AS10045 -- TNUTNET-AS HANBAT NATIONAL UNIVERSITY
10 - 203.230.104.0/22   8920  0.1%   AS10045 -- TNUTNET-AS HANBAT NATIONAL UNIVERSITY
11 - 203.230.96.0/21    8918  0.1%   AS10045 -- TNUTNET-AS HANBAT NATIONAL UNIVERSITY
12 - 202.30.46.0/23     8916  0.1%   AS10045 -- TNUTNET-AS HANBAT NATIONAL UNIVERSITY
13 - 220.66.143.0/24    8916  0.1%   AS10045 -- TNUTNET-AS HANBAT NATIONAL UNIVERSITY
14 - 220.66.144.0/22    8912  0.1%   AS10045 -- TNUTNET-AS HANBAT NATIONAL UNIVERSITY
15 - 220.66.148.0/23    8912  0.1%   AS10045 -- TNUTNET-AS HANBAT NATIONAL UNIVERSITY
16 - 210.182.8.0/24     8908  0.1%   AS9846  -- FIRSTDATA-AS-KR FDIK
17 - 203.252.168.0/24   8899  0.1%   AS9459  -- ASKONKUK Konkuk University
18 - 210.119.217.0/24   8899  0.1%   AS9459  -- ASKONKUK Konkuk University
19 - 203.252.166.0/24   8897  0.1%   AS9459  -- ASKONKUK Konkuk University
20 - 210.119.219.0/24   8897  0.1%   AS9459  -- ASKONKUK Konkuk University

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