1、The Need for IPv6 in China,Jianping Wu，Director of CERNET Jilong Wang 2002-10-28,2,Content,Requirements for IPv6 In China Service Providers Vision about IPv6 R&D Efforts,3,Resource distribution,4,16.13,5,China Internet Estimation,Population in mainland China 1,200,000,000 1 IP per person 72 class A
2、IP addresses 1 hour on line (28.8kbps) per person per day 1.68T/s 1 MB homepage per person 1200TB,Internet User trends,Global Internet user,China user,Need IPv6,China need 72 /8 IP addresses if 1 IP/person,7,Telephone user trends in China,Need VoIP,Need Mobile IP,APNIC IPv4 Address Distribution,9,Re
3、quirements for IPv6,Scalability Challenges Size（Address Space） Performance（Routing） Manageability Challenges Security QoS Mobility Application Promotions,10,Special Opportunities for IPv6 in China,Development of Broadband Education Application Relative Small IPv4 Coverage（some easy to change or adap
4、t new） Encouragement From Government Olympics 2008,11,Different Voice,How many IPv4 addresses can China get？ Will IPv4 NAT work for China? Should China implement IPv6? Who pay for IPv6 transition? Will China benefit from new features of IPv6 ? What are the killer applications of IPv6 ？,12,Service Pr
5、oviders,China Telecom CERNET（Noncommercial） China Mobile China Netcom China Unicom China Railway China Satellite CSTNET （Noncommercial）,13,China TeleCom,China MobileCom,15,Policies,Follow the development Research on business model Transition from IPv4 to IPv6 Key Tech. Terminals Test Tech Service Op
6、eration,16,China Netcom,A Large-Scale IPv4 Network Built Concerned with the benefits of IPv6 IPv4 still can manage to work How to use existing IPv4 equips Cost for Transition Maturity of IPv6 Hence and egg Problem No operational network to support app No killer app to promote Network deployment,17,C
7、ERNET,18,CERNET Computer Backbone,GigaPops 8 MigaPops 36 City Coverage 160+ Member 1000+ End Users 10M+,19,CERNET IPv6,20,Services,IP allocation by CerNIC Tunnel broker Common applications WWW DNS FTP,21,Future,Developing Native IPv6 Network Parallel Develop with IPv4 Internet Merge Transparently wi
8、th IPv4 on service and application level Maybe First Success in Some Special Area Success Depends on the Speed of Commercialization,22,IPv6 Efforts,1998, CERNET-IPv6 Test-bed 1999, IPv6 demo system funded by MST 863 1999, CERNET-Nokia joint IPv6 project 2000, NSFCNET funded by NSFC 2001, IPv6 Router
9、 funded by MST 863 2001, IPv6 MAN demo system funded by CAS 2002, IPv6-CJ funded by Chinese government and Japanese government,23,IPv6-CJ Test-bed,24,CJ-IPv6 Joint Project,Supported by Chinese and Japanese Government Project Contents More than 20 Org. and Companies Test bed: IPv6, 2.5Gbps connect BJ
10、, SH and GZ Connect Local IPv6 Testbed Backbone IPv6 Router from Japanese Companies and Another Link to Japanese IPv6 Networks at 45Mbps Systems: IPv6 Router/Switch, Host and Terminals WLAN Mobile System and IPv6 Security Applications: IPv4 to IPv6, IPv6 Applications Standard:,25,Vendors,26,Thanks！,
