Academic Netw ork Construction In China Academic Netw ork - - PowerPoint PPT Presentation

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Academic Netw ork Construction In China Academic Netw ork - - PowerPoint PPT Presentation

May 07, 2023 271 likes •369 views

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 &

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Academic Netw ork Construction In China Academic Netw ork Construction In China

A Brief Introduction of A Brief Introduction of CERNET, SHERNET and CERNET, SHERNET and SJTUnet SJTUnet 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

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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.

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SLIDE 3

Shanghai Shanghai Shengyang Shengyang Bei j i ng Bei j i ng N anj i ng N anj i ng W uhan W uhan G uangzhou G uangzhou Xi an Xi an C hengdu C hengdu

CERNET National/Regional CERNET National/Regional Network Centers Network Centers

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SLIDE 4

CERNET Backbone

Backbone

北大 南京 上海 沈阳

石家庄 郑州 长沙 天津 济南 合肥 杭州 福州 厦门 重庆 昆明 南宁 海口 桂林 大连 长春 哈尔滨 深圳 太原 青岛 南昌 拉萨 贵阳

乌鲁木齐

银川 兰州 西宁

呼和浩特

2.5G 155M 155M 155M*2 2M 1G

华中

华东 北 华东 南

华南 东北 西北 西南

北邮 北京 成都 西安 武汉 广州

INTERNET

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Shanghai Education and Research Network Shanghai Education and Research Network I Pv6/ I Pv4 Backbone

I Pv6/ I Pv4 Backbone I Pv6/ I Pv4 Backbone I Pv6/ I Pv4 Backbone

IPv4 Core Backbone DPT 1.25G

Tong Ji Univ.

Shanghai Jiao Tong Univ. Eastern China Normal Univ. Fudan Univ. 2nd Medical Univ.

1.25G 100M 1G

IPv6/IPv4 Access Network

2nd Medical Univ. Shanghai Jiao Tong Univ. Li Xin Finance College Medical college of Fudan Univ. Shanghai Normall Univ. Fudan Univ. Shanghai Finance Univ. Shanghai Univ. East Area of Tong Ji Univ. Easten China Normal Univ. Dong Hua Univ. Cernet

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  • 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

  • n PC
  • n 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 155 Mbps between Xuhui Xuhui and other 3 campuses and other 3 campuses

  • IBM

IBM Netview Netview network management system network management system

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Shanghai Jiao Tong University Shanghai Jiao Tong University Campus Network Topology Campus Network Topology

Xuhui Campus Minhang Campus Fahua Campus Shangzhong Campus 10 G 10 G Qibao Campus 622M ATM 1G 1 G 1G 1G 1G CERNET 100M 2G 1st People’s Hospital

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SHERNet SHERNet Native Native IPv6

IPv6 backbone

backbone

1G 1G

G uanzhou Bej i ng

1G 1G

SHERNET-2

Shanghai Ji ao Tong U ni . D

  • ng H

ua U ni v. East C hi na N

  • r m

al U ni . Shanghai U ni . Fudan U ni .

O t her uni . I s connect ed by Tunnel

1G 2.5G 2.5G

Tongj i U ni .

1G

Native IPV6

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SLIDE 9

SHERNet

IPv4/IPV6

New Generation New Generation SHERNet SHERNet

CNGI CERNET2 主干网 Native IPv6 CJ-IPv6 backbone Native IPv6 CERNET backbone Native IPv4

IPv6-SHERNet Native IPv6

CERNET2

上海分布节点

Janpanese

Internet 2 Internet

2.5G 10G 1G X 2 1G 1G