1 / 53

CERNET Development

Explore CERNET's cutting-edge network infrastructure facilitating distance learning, digital libraries, and computer collaboration. Discover services like video and voice communication enhancing education.

jhanna
Download Presentation

CERNET Development

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CERNET Development CANS 2002 Xing Li <2002-08-22>

  2. www.edu.cn

  3. CERNET Projects • CERNET Demonstration • 94-96 SPC • “95” Research & Development • 95-00 SPC • CERNET Satellite Backbone • 97-99 SPC • “211” Project • 97-01 MOE • Modern Distance Learning • 98-02 MOE

  4. CERNET Demonstration • National IP Backbone and International gateway • National network center • Regional Pops • Network management system • Network applications

  5. “95” Research & Development • Network management • Network security • Routing and switching • Network design and simulation • Chinese environment • Distance learning • Digital library • Computer collaboration • Distribute computing

  6. CERNET Satellite Backbone • 22 earth stations • 8 in regional Pops • 14 in western regions • Ku-band • 3.7M vs 2M • Policy based routing • 80 port and above

  7. “211” Project • 28 provincial Pops • from 10 Pops • to 38 Pops in provincial capitals • Mirror sites • network information 10 sites • discipline 12 sites • Distribute search engine

  8. Modern Distance Learning • High speed transport • High speed national backbone • High speed regional backbone • High speed MAN • Demos and services

  9. CERNET Infrastructure • Transport network • DWDM/SDH • Satellite network • SCPC • IP network

  10. CERNET Transport Network • Transport network • 20,000 km • 200+ relay stations • DWDM 16x2.5G • SDH 155M

  11. 沈阳 哈尔滨 天津 北京 大连 济南 太原 石家庄 青岛 郑州 重庆 南京 上海 成都 武汉 合肥 南昌 杭州 长沙 桂林 南宁 厦门 福州 广州 昆明 national dark fiber 深圳 海口 CERNET Fiber Infrastructure

  12. DWDM/SDH

  13. DWDM/SDH 2.5GROUTER D W D M 1 D W D M D W D M 1 9 2 2 S D H 1 9 S D H S D H 9 D W D M 9 155MROUTER S D H 3 3 1 9 DWDM

  14. CERNET Satellite Network • Satellite network • Sino-sat • 22 earth stations

  15. 哈尔滨 乌鲁木齐 长春 沈阳 北京 呼和浩特 唐山 天津 银川 石家庄 大连 济南 兰州 太原 烟台 西宁 青岛 郑州 西安 徐州 汉中 南京 成都 无锡 上海 合肥 重庆 武汉 黄梅 宜昌 拉萨 杭州 九江 长沙 南昌 福州 贵阳 台北 桂林 主干网 昆明 柳州 广州 厦门 地区网 百色 汕头 惠州 深圳 GigaPop 南宁 深圳 湛江 珠海 Pop 徐闻 海口 三亚 CERNET Backbone

  16. CERNET IP Addresses • ip prefix-list CERNET permit 162.105.0.0/16 le 24 • ip prefix-list CERNET permit 166.111.0.0/16 le 24 • ip prefix-list CERNET permit 202.4.128.0/19 le 24 • ip prefix-list CERNET permit 202.38.64.0/18 le 24 • ip prefix-list CERNET permit 202.38.192.0/18 le 24 • ip prefix-list CERNET permit 202.112.0.0/13 le 24 • ip prefix-list CERNET permit 202.120.0.0/15 le 24 • ip prefix-list CERNET permit 202.192.0.0/12 le 24 • ip prefix-list CERNET permit 210.26.0.0/15 le 24 • ip prefix-list CERNET permit 210.28.0.0/14 le 24 • ip prefix-list CERNET permit 210.32.0.0/12 le 24 • ip prefix-list CERNET permit 211.64.0.0/13 le 24 • ip prefix-list CERNET permit 211.80.0.0/13 le 24 • ip prefix-list CERNET permit 218.192.0.0/13 le 24 • ip prefix-list CERNET permit 219.216.0.0/15 le 24 • ip prefix-list CERNET permit 219.242.0.0/15 le 24 • ip prefix-list CERNET permit 219.244.0.0/14 le 24 • ip prefix-list CERNET permit 210.25.128.0/17 le 24

  17. Backbone Traffic

  18. BJ-IX Traffic

  19. CERNET statistics • CERNET GigaPops 8 • CERNET MigaPops 36 • Cities connected 200+ • CERNET Members 1,000+ • Users 10M+ 320M

  20. CERNET Services • SLA service • Directory service • Multicast service • Video service • Voice service • IPv6 service • CCERT service • Accounting Service

  21. SLA (IP core)(better than this is more expensive than traditional TDM to produce) • Forwarding outage <3s • Packet loss 0.05% • Packet reordering 1% • RRT CN (except sat. Link) 100ms • RTT US 380ms • RTT World 550ms • Jitter 30ms

  22. SLA

  23. IP db

  24. rp rp STARTAP APAN-TXP rp R0l BR R0b BR Rx6 BR nqhu BR+rp R1.1 rr s R1a rp R2a rp R2.1 rr s NSFCNET R8a rp CERNET R8.1 rr s R2a rp R3.1 rr s R7.1 rr s R7a rp R4a rp R4.1 rr s R6.1 rr s R6a rp R5.1 rr s R5a rp PIM-SP/mBGP/MSDP

  25. Video Multicast & H.323 GigaPop 12 PoP 40 Key Univ. 100+

  26. TMG switch PSTN GSM/CDMA/3G STP IP Phone Voice AppServer NMS SoftSwitch PolicyServer

  27. General Bit 3 13 32 16 64 address Definitio FP TLA ID NLA ID SLA Interface ID archi- ID n 001 0x1FFE tecture * Address Value 3FFE: 32 xr: pooo: aaaa: aaaa:aaaa:aaaa:aaaa archi- TLA pseudo- Region Organiz Meaning For TLA ID ation tecture 6bone For in the CERNET NLA1 NLA2 Subnet Network Interface ID Testbed ID ID ID Bit 16 8 8 16 16 64 Notes ： Only global aggregateable unicast address architecture is described. l FP Format Prefix; 001 = aggregatable global unicast addresses ： TLA Top Level Aggregation; 0x1FFE = 6bone ： NLA Next Level Aggregation ： SLA Site Level Aggregation ： x 0 = Official 1 = Student Experiment ： ； r 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 address

  28. CERNET official IPv6 address

  29. CERNET IPv6 BGP Peers

  30. CCERT 服务

  31. anti-spam

  32. Accounting Analysis

  33. 中国互连网预测 (1) • 中国人口12亿 • 每人1个地址 • 72 class A IP addresses • 每人每天拨号上网1小时 • 1.68T/s • 每人1M网页 • 1200TB

  34. 中国互连网预测 (2)

  35. APNIC IPv4 地址分布

  36. Situation • 6.2 IPv4 Address Space currently allocated to the RIRs • RIPE has 7 x /8’s (62, 193, 194, 195, 212, 213, 217) • ARIN has13 x /8’s ( 63, 64, 65, 66, 199, 200, 204, 205, 206, 207, 208, 209, 216) • APNIC has 6 x /8’s (61, 202, 203, 210, 211, 218) • IANA still has many address blocks reserved and available for allocation to RIRs, namely: • 1, 2, 5, 7, 23, 27, 31, 36, 37, 39, 41, 42, 49, 50, 58, 59, 60, 67-95, 96-126, 197, 201, 219-223, i.e.84 /8s. In addition to this, the former "Class B" space is completely free from 173/8 to 191/8, i.e. 19/8s. This makes a total of103 /8s available for allocation to the RIRs.

  37. Likely

  38. Resource distribution

  39. IP & GDP

  40. Setting protocol • 1999, the IETF IPv6 Working Group announced that the protocol was finished and ready for implementation. • Sept. 2000, Japan advocated deployment of IPv6 • Feb. 2001, South Korea followed • April 2001, European Commission called for its quick adoption • United States has shown little enthusiasm for implementation of the next-generation Internet. 2000 Dow Jones & Company, Inc.

  41. Comments (1) • Scalability • Address • Routing • Multihoming

  42. Comments (2) • Next Generation applications • End-to-end • Information resources • High performance • Parallel TCP • Reliable UDP • ?

  43. Comments (3) • Other considerations • Security • Mobility • QoS • ? • New business model • The reasonable charging model

  44. Comments (4) • International collaboration More bandwidth Asia - US Asia - EU

  45. CANS 2002 NMS

  46. traceroute

More Related