1、中國教育和科研計算機網(wǎng)的發(fā)展中國教育和科研計算機網(wǎng)的發(fā)展中國教育和科研計算機網(wǎng)的發(fā)展CERNET發(fā)展的回顧CETNET現(xiàn)狀下一代Internet試驗床中國教育和科研計算機網(wǎng)的發(fā)展CERNET發(fā)展的回顧一、CERNET發(fā)展的回顧一、CERNET發(fā)展的回顧CERNET發(fā)展歷程CERNET示范網(wǎng) 94-94CERNET R&D 95-00CERNET衛(wèi)星主干網(wǎng) 97-99“211”工程 97-01現(xiàn)代遠程教育 98-02CERNET發(fā)展歷程CERNET示范網(wǎng) CERNET示范網(wǎng)國家IP主干和國際網(wǎng)關(guān)國家網(wǎng)絡(luò)中心區(qū)域網(wǎng)點（Pops）網(wǎng)絡(luò)管理系統(tǒng)網(wǎng)絡(luò)應(yīng)用CERNET示范網(wǎng)國家IP主干和國際網(wǎng)關(guān)“95”

2、R&D網(wǎng)絡(luò)管理網(wǎng)絡(luò)安全路由和交換網(wǎng)絡(luò)設(shè)計和仿真中文環(huán)境遠程教育數(shù)字圖書館計算機協(xié)同分布計算“95” R&D網(wǎng)絡(luò)管理CERNET衛(wèi)星主干22個地面站 8個在區(qū)域網(wǎng)點 14個在西部Ku頻段基于策略的路由 80多個端口CERNET衛(wèi)星主干22個地面站“211” 工程28個省級網(wǎng)點 從10個Pops發(fā)展到38個Pops鏡像點 網(wǎng)絡(luò)信息 10個 學(xué)科 12個分布搜索引擎“211” 工程28個省級網(wǎng)點現(xiàn)代遠程教育高速傳輸高速國家主干高速區(qū)域主干高速城域網(wǎng)MAN示范與服務(wù)現(xiàn)代遠程教育高速傳輸二、CERNET現(xiàn)狀二、CERNET現(xiàn)狀CERNET基礎(chǔ)設(shè)施傳輸網(wǎng) DWDM/SDH衛(wèi)星網(wǎng) SCPCIP網(wǎng)CERNET

3、基礎(chǔ)設(shè)施傳輸網(wǎng)CERNET傳輸網(wǎng)20,000Km200+中繼站DWDM 162.5GSDH 155MCERNET傳輸網(wǎng)20,000Km大連北京鄭州石家莊武漢合肥南京上海長沙南昌杭州廣州福州成都昆明重慶廈門?？诠鹆稚蜿柟枮I天津濟南南寧深圳 national dark fiber 太原青島CERNET Fiber Infrastructure大連北京鄭州石家莊武漢合肥南京上海長沙南昌杭州廣州福州成都昆DWDM/SDHDWDM/SDHDWDMSDHDWDM2.5GROUTER155MROUTERDWDMSDHSDHSDHDWDMDWDM/SDH DWDM1929191329139DSD2.5GRO

4、UTER155MROUTERDSSSDDWCERNET Satellite NetworkSatellite networkSino-sat 22 earth stationsCERNET Satellite NetworkSatellCERNET Backbone徐聞長春哈爾濱烏魯木齊拉薩西寧蘭州銀川呼和浩特臺北沈陽南昌西安徐州武漢合肥鄭州石家莊北京南寧廣州福州杭州上海南京天津貴陽海口三亞湛江無錫大連太原濟南煙臺成都長沙重慶黃梅九江昆明青島汕頭唐山漢中宜昌珠海深圳惠州柳州百色廈門主干網(wǎng)地區(qū)網(wǎng)GigaPopPop桂林深圳CERNET Backbone徐聞長春哈爾濱烏魯木齊拉薩西寧CERNET

5、IP Addressesip prefix-list CERNET permit 162.105.0.0/16 le 24ip prefix-list CERNET permit 166.111.0.0/16 le 24ip prefix-list CERNET permit 202.4.128.0/19 le 24ip prefix-list CERNET permit 202.38.64.0/18 le 24ip prefix-list CERNET permit 202.38.192.0/18 le 24ip prefix-list CERNET permit 202.112.0.0/1

6、3 le 24ip prefix-list CERNET permit 202.120.0.0/15 le 24ip prefix-list CERNET permit 202.192.0.0/12 le 24ip prefix-list CERNET permit 210.26.0.0/15 le 24ip prefix-list CERNET permit 210.28.0.0/14 le 24ip prefix-list CERNET permit 210.32.0.0/12 le 24ip prefix-list CERNET permit 211.64.0.0/13 le 24ip

7、prefix-list CERNET permit 211.80.0.0/13 le 24ip prefix-list CERNET permit 218.192.0.0/13 le 24ip prefix-list CERNET permit 219.216.0.0/15 le 24ip prefix-list CERNET permit 219.242.0.0/15 le 24ip prefix-list CERNET permit 219.244.0.0/14 le 24ip prefix-list CERNET permit 210.25.128.0/17 le 24CERNET IP

8、 Addressesip prefix-lBackbone TrafficBackbone TrafficBJ-IX TrafficBJ-IX TrafficCERNET statisticsCERNET GigaPops8CERNET MigaPops36Cities connected200+CERNET Members 1,000+Users10M+ 320MCERNET statisticsCERNET GigaPoCERNET ServicesSLA serviceDirectory serviceMulticast serviceVideo serviceVoice service

9、IPv6 serviceCCERT serviceAccounting ServiceCERNET ServicesSLA serviceSLA (IP core)(better than this is more expensive than traditional TDM to produce)Forwarding outage3sPacket loss0.05%Packet reordering1%RRT CN(except sat. Link)100msRTT US380msRTT World550ms Jitter30msSLA (IP core)(better than thSTA

10、RTAPAPAN-TXPNSFCNETnqhuBR+rpR1.1rr sCERNETR2.1rr sR3.1rr sR4.1rr sR5.1rr sR6.1rr sR7.1rr sR8.1rr sR0lBRR0bBRRx6BRR1arpR8arpR7arpR6arpR5arpR4arpR2arpR2arprprprpPIM-SP/mBGP/MSDPSTARTAPAPAN-TXPNSFCNETnqhuR1.1三、下一代Internet試驗床三、下一代Internet試驗床Internet面臨的挑戰(zhàn)網(wǎng)絡(luò)的可擴展性網(wǎng)絡(luò)的安全性網(wǎng)絡(luò)的服務(wù)質(zhì)量新的網(wǎng)絡(luò)應(yīng)用商業(yè)、文化和社會問題Internet面臨的挑戰(zhàn)網(wǎng)

11、絡(luò)的可擴展性從IPV4 到 IPV6地址擴展 43億 10億的平方地址自動配置端到端全球?qū)ぶ窓C制多協(xié)議標(biāo)記交換技術(shù)上網(wǎng)速度加快1001000倍安全域的擴展服務(wù)質(zhì)量的保證從IPV4 到 IPV6地址擴展 43億 IPV6試驗網(wǎng)IPV6試驗網(wǎng)6bone于2019年建立50多個國家和地區(qū)加入CERNET國家網(wǎng)絡(luò)中心于98年6月加入，同年11月成為其骨干網(wǎng)成員CERNET試驗床地址： 3FFE:3200:/24 偽頂級聚類P-TLA按地區(qū)分配次級聚類地址NLA/ID5條IPV6虛擬鏈路IPV6試驗網(wǎng)IPV6試驗網(wǎng)6bone于2019年建立CERNET 6Bone addressBit313321664

12、FPTLA IDGeneraladdressarchi-tecture *Definition0010 x1FFENLA IDSLAIDInterface IDValue3FFE:32xr:pooo:aaaa:aaaa:aaaa:aaaa:aaaaMeaningTLAFor6bonepseudo-TLA IDForCERNETRegionNLA1IDOrganizationNLA2IDSubnetIDNetwork Interface IDAddressarchi-tecturein theTestbedBit1688161664Notes：l Only global aggregateabl

13、e unicast address architecture is described.FP：Format Prefix; 001 = aggregatable global unicast addressesTLA：Top Level Aggregation; 0 x1FFE = 6boneNLA：Next Level AggregationSLA：Site Level Aggregationx：0 = Official；1 = Student Experimentr：Region Code (specified by CERNET)p：Code for Province (specified by NLA1 delegation in the region)ooo：Organization Code (specified by NLA1 delegation in the region)CERNET 6Bone addressBit3133216CERNET IPv6 BGP PeersCERNET IPv6 BGP Peers中國高速互聯(lián)研究試驗網(wǎng)NS