Academic Netw ork Construction In China Academic Netw ork Construction In China A Brief Introduction of A Brief Introduction of CERNET, SHERNET and SJTUnet SJTUnet CERNET, SHERNET and Netw orking & Information Center Netw orking & Information Center Shanghai Jiao Tong University Shanghai Jiao Tong University 上海交通大学网络信息中心 上海交通大学网络信息中心
Overview Overview � CERNET is the first nationwide computer network in China � The goal of constructing CERNRT is to gradually connect all the universities , institutes, primary and secondary schools , as well as other education and research entities in China � It is funded and directly managed by the China Ministry of Education � CERENT is designed, constructed, operated and managed by 10 leading universities including Tsinghua University, Peking University, Shanghai Jiao Tong University, etc.
CERNET National/Regional CERNET National/Regional Network Centers Network Centers Shengyang Shengyang Bei j i ng Bei j i ng Xi an Xi an N N anj i ng anj i ng Shanghai Shanghai W W uhan uhan C C hengdu hengdu G G uangzhou uangzhou
CERNET Backbone Backbone 长春 哈尔滨 呼和浩特 INTERNET 沈阳 东北 乌鲁木齐 大连 北邮 北京 北大 西宁 兰州 银川 天津 石家庄 太原 济南 青岛 西安 西北 华东 华东 北 南 郑州 合肥 成都 武汉 南京 上海 西南 重庆 昆明 长沙 华中 杭州 南昌 拉萨 贵阳 福州 2.5G 厦门 155M 广州 桂林 155M 深圳 155M*2 南宁 2M 华南 海口 1G
Shanghai Education and Research Network I Pv6/ I Pv4 Backbone Shanghai Education and Research Network I Pv6/ I Pv4 Backbone I Pv6/ I Pv4 Backbone I Pv6/ I Pv4 Backbone Shanghai Shanghai Finance Univ. Univ. East Area of Fudan Tong Ji Univ. Univ. Easten China Normal Univ. Eastern China Normal Univ. Fudan Univ. IPv4 Core Backbone Dong Hua Tong Ji Univ. DPT 1.25G Univ. 2 nd Medical Univ. Shanghai Jiao Tong Univ. Cernet IPv6/IPv4 Access Network Shanghai 2 nd Medical Normall Univ. Univ. Shanghai 1G Medical college of Jiao Tong Univ. Li Xin Finance 1.25G Fudan Univ. College 100M
� SJTU � SJTU Capmus Capmus Network Evolution Network Evolution - Experimental Campus Network Experimental Campus Network (Oct. 1994) - (Oct. 1994) • 5 Ethernet LAN segments connected by 2 Bridge 5 Ethernet LAN segments connected by 2 Bridge- -Routers based Routers based • on PC on PC • Used for showing what a network can do Used for showing what a network can do • - ATM Campus Network ATM Campus Network (Main Campus Only, Oct. 1995) - (Main Campus Only, Oct. 1995) • The first ATM campus network in China The first ATM campus network in China • • • 2 2 × × IBM 8260 ATM Switches, 14 IBM 8260 ATM Switches, 14 × × IBM 8281 ATM/Ethernet LAN IBM 8281 ATM/Ethernet LAN Bridges Bridges • 100 Mbps trunk data rate 100 Mbps trunk data rate • • Connected 15 Buildings in Connected 15 Buildings in Xuhui Xuhui campus campus • - ATM Campus Network Upgrade ATM Campus Network Upgrade (All Campuses, Dec. 1998 - (All Campuses, Dec. 1998 - - Dec. 2000) Dec. 2000) • 2 2 × × IBM 8265 ATM Switches, 55 IBM 8265 ATM Switches, 55 × × IBM 8277 ATM/FE Switches IBM 8277 ATM/FE Switches • • • 22 22 × × Cisco 2924 Switches and 250 Cisco 2924 Switches and 250 × × Cisco 1924 Switches Cisco 1924 Switches • Connected 72 buildings of 5 campuses Connected 72 buildings of 5 campuses • • 622 + 155 Mbps trunk rate between 622 + 155 Mbps trunk rate between Xuhui Xuhui and and Minhang Minhang campus, campus, • 155 Mbps between Xuhui Xuhui and other 3 campuses and other 3 campuses 155 Mbps between • IBM IBM Netview Netview network management system network management system •
Shanghai Jiao Tong University Shanghai Jiao Tong University Campus Network Topology Campus Network Topology CERNET Fahua 2G 1G Campus 1G Xuhui Campus 10 G Qibao Campus 10 G 1G 622M ATM 1 0 G 100M Shangzhong Campus 1G Minhang 1 st People’s Campus Hospital
SHERNet Native Native IPv6 backbone SHERNet IPv6 backbone Shanghai U ni . East C hi na 1G N or m al U ni . Fudan U ni . 1G 1G D ong H ua U ni v. 1G Tongj i U ni . SHERNET-2 Bej i ng 1G 1G 2.5G Native IPV6 Shanghai Ji ao Tong U ni . 2.5G G uanzhou O t her uni . I s connect ed by Tunnel
New Generation SHERNet SHERNet New Generation Internet 2 Janpanese Internet CNGI CERNET2 主干网 Native IPv6 CJ-IPv6 backbone CERNET backbone Native IPv6 Native IPv4 10G 1G X 2 CERNET2 上海分布节点 2.5G 1G SHERNet IPv6-SHERNet IPv4/IPV6 Native IPv6 1G
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