1. Internet eXchanges in Korea March. 5, 2002 Lee, Yeong-Ro, Son, Young-Tae Dept. of Internet, National Informatization Div. National Computerization Agency, Korea

2. Contents  Overview  History of IX  Current IX Situations IX Connectivity IX Architecture and Operation IX Costs  Future Plans

3. National Computerization Agency, Korea Overview  Korea Internet Environments Internet Usage Internet Users : >24M (52% Penetration Rate) High Speed Internet Access User : >8M Free Internet Service at K-12 Schools Internet Café : >20K Internet Infrastructure Backbone : Fiber Optics + ATM, WDM Access Network : ADSL and Cable modem based Broadband access with Plat Rate(22~33U.S.$/Mon.) 20 IDCs, 4 IXs, Over 15Gbps B/W to Oversea Internet Links

4. National Computerization Agency, Korea Overview  ISPs in Korea No. of ISPs : 101 No. of ASN(Autonomous System No.) : 393

5. National Computerization Agency, Korea History of IX  ~1995. 1. No IX in Korea, Domestic Traffic Exchange via Overseas Links  1995. 2. KIX, the first IX in Korea by NCA  1996. 12. Commercial IX, KT-IX and DIX  1999. 6. KINX(Korea Internet Neutral eXchange) established with Supports from 16 small and medium size ISPs  2001.9. The First IPv6 IX(6NGIX) Service in Korea

6. National Computerization Agency, Korea Current IX Situations  Official IXs KIX(Korea Internet eXchange) Non Profit IX, by NCA www.kix.ne.kr KT-IX(Korea Telecom IX) Commercial IX, Operated by Korea Telecom Corp. www.kix.net DIX(Dacom IX) Commercial IX, Operated by Dacom Corp. www.bora.net KINX(Korea Internet Neutral eXchange) Commercial IX, Operated by KINX Inc. www.kinx.net NGIX(IPv6 Next Generation IX) IPv6 IX, Operated by NCA www.ngix.ne.kr

7. National Computerization Agency, Korea 8 Networks Internet Connectivity Map KT-IX DIX KINX 60 ISPs 35 ISPs 54 ISPs Non commercial network (15 ISPs) 6NGIX KIX

8. National Computerization Agency, Korea Status of IX Connections IX Operated by The No. of Connected ISPs Sum of Traffic (Peak) IPv4 IPv6 KIX KT-IX DIX KINX NCA Korea Telecom Dacom Corp. KINX Inc. 15 54 63 35 4Gbps 44Gbps 35Gbps 19Gbps Sum of Connection Capacity 11Gbps 53Gbps 45Gbps 31Gbps 6NGIX NCA 8 Networks- 1Gbps

9. National Computerization Agency, Korea IX Architecture  Layer 3 Model KT-IX IX Operator Manages All(router, switch) Many Networks in one Router  Layer 2 and 3 Hybrid Model DIX, KIX, 6NGIX  Layer 2 Model KINX IX Operator Manages facility and Control Layer 2 Switch One Network in one Router

10. National Computerization Agency, Korea IX Architecture(2)  Technology Use Backbone Switch(Catalyst6500, Black diamond.., etc) GbE and FE used in LAN SDH(~2.5Gbps), Metro-Ethernet(1Gbs) used in WAN  Routing Use BGP4 Routing Protocol ISPs are allowed to connect to IX

11. National Computerization Agency, Korea Cost for IX Services Category IX Price Structure Public Commercial KIX, 6NGIX KT-IX DIX KINX No Charge Link fee + Transit Fee(About 20% of link fee) Co-location Fee + Port Charge Link fee + Transit Fee(About 20% of link fee) * Expense for the connection between two IXs is shared at the ratio of 50:50

12. National Computerization Agency, Korea KIX

13. National Computerization Agency, Korea ….…. KT-IX KORNET Backbone KT-IX Center AP-HUB Center Oversea Links USAAsia User Organization/Person ISP#1ISP#2ISP#n User ISPs Users

14. National Computerization Agency, Korea DIX J-City Netsgo KTIX KREN Unitel GNG Net Elimnet Shinbiro Hanaro Hansol Thrunet DIX NCA Kreonet Pubnet-Plus Pubnet-KT SuperNet PSINet Hitel Kotis Net. IBR Saeroun-net Samjung-data Raim comm, C & W KICA Eureca Media dulinet Korea Multinet Korea Internet Nextel AT&T KRLINE Today&Tomo rrow Internet Korea Easyos Arisu Internet Eyesan ebsan Miraenet Info-net Now-link Kwanak Net Iosys Anynet MPNNetwork s Mirae Cable GiolayNet KRNIC KT promotion L2IXL3IXIX

15. National Computerization Agency, Korea KINX

16. National Computerization Agency, Korea 6NGIX ETRI HANANET KT-KOREN DACOM KREONET2 i2softOPICOM SKTelecom KRNIC ICU 6TAP, WIDE 6BONE 6WINIT, 6INIT Trans-Eurasia 6BONE-KR APAN-KR KOREN 6NGIX Singapore Singaren - TAIWAN Hinetv6 NCA HAN Internet 6KANet

17. National Computerization Agency, Korea Future Plans  Improve Domestic IX Connectivity Connect inter-IX with Full Mesh Topology Build Regional IX in Pusan and Other Big City Organize KIXA(Korea Internet eXchange Association) for Boosting IX Business  Realign Relevant Regulations Rule of Interworking, Qualification of IX  International Cooperation to build A.P. region IXP

18. National Computerization Agency, Korea Points of Contact  Lee, Yeong-Ro Director of National Compuerization Agency, Korea lyr@nca.or.kr, +82-31-260-2305lyr@nca.or.kr  Son, Young-Tae Senior Engineer of KII Div., NCA, Korea syt@nca.or.kr, +82-31-260-2372syt@nca.or.kr  Staffs KIX-NOC, staff@kix.ne.kr, www.kix.ne.krstaff@kix.ne.krwww.kix.ne.kr

19. National Computerization Agency, Korea Thank You.