Measurement of BGP Anycast effects – experiences in.JP From the query to a.dns.jp Masato MINDA Shinta Sato, Izuru Shirai, Takayasu Matsuura Japan Registry.

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Presentation transcript:

Measurement of BGP Anycast effects – experiences in.JP From the query to a.dns.jp Masato MINDA Shinta Sato, Izuru Shirai, Takayasu Matsuura Japan Registry Services Co., Ltd. (JPRS) DNS operation 23

Copyright©2007 Japan Registry Services Co., Ltd.2 About JP DNS JP DNS - authoritative nameservers of.JP a.dns.jp - f.dns.jp (except "c") ServerOperatorAnycastIPv6 a.dns.jpJPRSBGP AnycastYes b.dns.jpJPNIC N/A No d.dns.jpIIJIGP AnycastYes e.dns.jpWIDE ProjectSoonYes f.dns.jpSINET N/A Yes

Copyright©2007 Japan Registry Services Co., Ltd.3 a.dns.jp - Anycast Status a.dns.jp –AS: 23774IPv4: IPv6: 2001:dc4::1 –Using BIND 9 (All of JP DNS are using BIND 9) Locations of a.dns.jp –Tokyo and Osaka (since Feb 2004) –New York will up by the end of 2007 (tentatively) Objectives of this experiment –Test run and measurement before real operation at New York

Copyright©2007 Japan Registry Services Co., Ltd.4 a.dns.jp - Network Topology JPRS a.dns.jp AS ISP a.dns.jp ISP a.dns.jp ISP JPNAP ISP New York Tokyo Osaka Internet DIX-IE local peers JPIX local peers NEW!

Copyright©2007 Japan Registry Services Co., Ltd.5 a.dns.jp - Network Topology (cont.) Path between the Internet and a.dns.jp (AS23774) –Tokyo:Two ASes, AS18149 and ISP –Osaka:One AS, ISP –New York:Two ASes, AS24252 and ISP

Copyright©2007 Japan Registry Services Co., Ltd.6 a.dns.jp – Measurement & Tools Query Log By BIND logging feature (since Feb 2004) Maxmind GeoIP HELIO World DSC RIPE DNSMON

Copyright©2007 Japan Registry Services Co., Ltd.7 a.dns.jp - Summary of queries Ave qps – qps From which country 1.JP % 2.US % 3.CN TW KR GB 4.Some European Countries 5.Others.

Copyright©2007 Japan Registry Services Co., Ltd.8 a.dns.jp - Anycast Test Run Step 1.Osaka: Add one AS-path (AS prepend) 2.New York: Turn ON 3.Osaka: Add more three AS-paths (AS prepend) 4.Osaka: Turn OFF 5.Osaka: Turn ON with normal AS-path length 6.Osaka: Turn OFF 7.Osaka: Turn ON with normal AS-path length 8.New York: Turn OFF

Copyright©2007 Japan Registry Services Co., Ltd.9 Schedule and Analytical Technique Schedulefrom to Analytical Technique –Extract IPv4 addresses (query source) from the querylog before and after one hour of each step. Note: IPv6 was not examined. –Analyze query source country by using GeoIP –Draw the World Map by using “HELIO World”

Copyright©2007 Japan Registry Services Co., Ltd.10 How to see the map Dark parts indicate more query rates (%) The total queries for the each countries are treated as 100% –The entire queries of the each maps do not sum up as 100%

Copyright©2007 Japan Registry Services Co., Ltd.11 Step1: Osaka: Add one AS-Path New YorkOsakaTokyo JPRS a.dns.jp AS ISP a.dns.jp ISP a.dns.jp ISP Internet New YorkOsakaTokyo JPRS a.dns.jp AS ISP a.dns.jp ISP a.dns.jp ISP Internet AS

Copyright©2007 Japan Registry Services Co., Ltd.12 Step1: results Osaka Tokyo 62% (1300qps)37% (800qps) 23% (460qps)77% (1500qps)

Copyright©2007 Japan Registry Services Co., Ltd.13 Step2: New York: Turn ON New YorkOsakaTokyo JPRS a.dns.jp AS ISP a.dns.jp ISP a.dns.jp ISP Internet New YorkOsakaTokyo JPRS a.dns.jp AS ISP a.dns.jp ISP a.dns.jp ISP Internet AS

Copyright©2007 Japan Registry Services Co., Ltd.14 Step2: results (1)

Copyright©2007 Japan Registry Services Co., Ltd.15 Step2: results (2) Tokyo New York

Copyright©2007 Japan Registry Services Co., Ltd.16 Step2: results (3) OsakaTokyo New York 21% (400qps)79% (1400qps)0% (0qps) 18% (340qps)63% (1200qps)19% (350qps)

Copyright©2007 Japan Registry Services Co., Ltd.17 Step3: Osaka: Add three more AS-paths New YorkOsakaTokyo JPRS a.dns.jp AS ISP a.dns.jp ISP a.dns.jp ISP Internet New YorkOsakaTokyo JPRS a.dns.jp AS ISP a.dns.jp ISP a.dns.jp ISP Internet AS

Copyright©2007 Japan Registry Services Co., Ltd.18 Step3: results OsakaTokyo New York 18% (290qps)64% (1000qps)18% (290qps) 3% (60qps)84% (1900qps)13% (300qps)

Copyright©2007 Japan Registry Services Co., Ltd.19 Step4: Osaka: Turn OFF New YorkOsakaTokyo JPRS a.dns.jp AS ISP a.dns.jp ISP a.dns.jp ISP Internet New YorkOsakaTokyo JPRS a.dns.jp AS ISP a.dns.jp ISP a.dns.jp ISP Internet AS

Copyright©2007 Japan Registry Services Co., Ltd.20 Step4: results OsakaTokyo New York 3% (60qps)85% (1900qps)13% (300qps) 0% (0qps)87% (2000qps)13% (300qps)

Copyright©2007 Japan Registry Services Co., Ltd.21 Step5: Osaka: Turn ON New YorkOsakaTokyo JPRS a.dns.jp AS ISP a.dns.jp ISP a.dns.jp ISP Internet New YorkOsakaTokyo JPRS a.dns.jp AS ISP a.dns.jp ISP a.dns.jp ISP Internet

Copyright©2007 Japan Registry Services Co., Ltd.22 Step5: no results The logfile was missed Over 2GB logged at New York –We believed that 64bit version of BIND was used. However, it was 32bit version.

Copyright©2007 Japan Registry Services Co., Ltd.23 Step6: Osaka: Turn OFF (again) New YorkOsakaTokyo JPRS a.dns.jp AS ISP a.dns.jp ISP a.dns.jp ISP Internet New YorkOsakaTokyo JPRS a.dns.jp AS ISP a.dns.jp ISP a.dns.jp ISP Internet

Copyright©2007 Japan Registry Services Co., Ltd.24 Step6: results OsakaTokyo New York 56% (1200qps)37% (760qps)7% (150qps) 0% (0qps)87% (2100qps)13% (330qps)

Copyright©2007 Japan Registry Services Co., Ltd.25 Step7: Osaka: Turn ON New YorkOsakaTokyo JPRS a.dns.jp AS ISP a.dns.jp ISP a.dns.jp ISP Internet New YorkOsakaTokyo JPRS a.dns.jp AS ISP a.dns.jp ISP a.dns.jp ISP Internet

Copyright©2007 Japan Registry Services Co., Ltd.26 Step7: results OsakaTokyo New York 0% (0qps)84% (1900qps)16% (350qps) 65% (1300qps)26% (540qps)9% (190qps)

Copyright©2007 Japan Registry Services Co., Ltd.27 Step8: New York: Turn OFF New YorkOsakaTokyo JPRS a.dns.jp AS ISP a.dns.jp ISP a.dns.jp ISP Internet New YorkOsakaTokyo JPRS a.dns.jp AS ISP a.dns.jp ISP a.dns.jp ISP Internet

Copyright©2007 Japan Registry Services Co., Ltd.28 Step8: results OsakaTokyo New York 67% (1100qps)23% (400qps)10% (170qps) 62% (1100qps)38% (700qps)0% (0qps)

Copyright©2007 Japan Registry Services Co., Ltd.29 Conclusion In anycast operation, AS-Path prepend is useful for load balancing. –The setting of present Tokyo and Osaka is just good. European countries are close to New York. –Especially, It is interesting for Japan and Russia to be distant.

Copyright©2007 Japan Registry Services Co., Ltd.30 Future Work We will analyze… –Origin AS Number –Raw data of RIPE DNSMON –IPv6 –etc…

Copyright©2007 Japan Registry Services Co., Ltd.31 Q and A

Copyright©2007 Japan Registry Services Co., Ltd.32 Acknowledgements This presentation is included the research activities founded by National Institute of Information and Communications Technology (NICT).