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CNGI-CERNET2 Operation

CNGI-CERNET2 Operation. Oct 21, 2008. Outline. CNGI-CERNET2 updates CPN Measurement Research Project of NOC Challenges. 1. CNGI-CERNET2 updates. 2.5G. 155M. juniper. bitway. huawei. Deploy Topology of CNGI-CERNET2 (2004-12). Point2point link address IPv4 range: 202.38.120.0/25

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CNGI-CERNET2 Operation

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  1. CNGI-CERNET2 Operation Oct 21, 2008

  2. Outline • CNGI-CERNET2 updates • CPN Measurement • Research Project of NOC • Challenges

  3. 1. CNGI-CERNET2 updates

  4. 2.5G 155M juniper bitway huawei Deploy Topology of CNGI-CERNET2(2004-12) Point2point link address IPv4 range: 202.38.120.0/25 start: 202.38.120.4/30 IPv6 range: 2001:DA8:1::/48 start: 2001:DA8:1:1::/64 Loopback address IPv4 range: 202.38.120.192/27 start: 202.38.120.192/32 IPv6 range: 2001:DA8:1:ff::/64 start: 2001:DA8:1:ff::/128 • CNGI-CERNET2 is Started to provide service at the end of 2004. 哈尔滨 长春 沈阳 大连 北京 天津 济南 郑州 合肥 西安 兰州 武汉 • 25 POPs, 1 core router for each POP. • The speed of backbone link is from 155M to 2.5G 上海 重庆 成都 南京 长沙 杭州 厦门 广州

  5. topology when CNGI-CERNET2 project is finished Due Topology of CNGI-CERNET2(2006-8) Still 25 POPs. 2 core routers for each POP. 1 or 2 edge routers for each CPN. Speed of backbone link is from 2.5G to 10G.

  6. Current Stateof CNGI-CERNET2 北京－北大 沈阳 长春 哈尔滨 北京－北邮 北京－北航 大连 郑州 天津 CNGI-6IX北京 济南 北京－清华 合肥 All on-line core routers are from single vendor to optimize advanced service support like multicast and MPLS. CNGI-6IX上海 兰州 上海－复旦 西安 武汉 重庆 成都 南京 上海－同济 10GPOS 2.5GPOS 比威BE12016 华为NE80 华为NE5000 Juniper T640 CiscoCRS Hitachi GR4000 上海－交大 Currently more than 200 customer networks, about 2M end users. 长沙 杭州 广州 厦门

  7. Statistics of Tickets and Traffic(2006-08 ~ 2008-08) • Statistics of Tickets of 2007 • Statistics of Tickets of 2008 • Statistics of Backbone traffic of 2007 • Statistics of Backbone traffic of 2008 • Assigned IPv6 Address Blocks

  8. Statistics of Tickets of 2007 Router failure is 19%. We find many bugs of routers of different vendors.

  9. Statistics of Tickets of 2008 Router failure is cut down. IPv6 goes more mature.

  10. Statistics of Backbone traffic of 2007 Backbone traffic is 1.8G. Border traffic is low, the major traffic is generated by DVTS. Backbone Border Inbound Traffic of Backbone Outbound Traffic of Backbone Information source is not balanced. Shanghai contribute the most. They have trial IPTV service.

  11. Statistics of Backbone traffic of 2008 Backbone traffic doubled. Border traffic increased dramatically. Besides Shanghai, there are other POPs contribute much traffic, such as BUPT, Shenyang and Hefei. Backbone Border Outbound Traffic of Backbone Inbound Traffic of Backbone

  12. Assigned IPv6 Address Blocks IPv6 address space continue to grow.

  13. Route Prefix There are about 1100 IPv6 items. 属于2001:da8::/32且前缀长度为48的BGP路由条数：156 There are about 1100 IPv6 items. 156 BGP route table items belong to 2001:da8::/32and with prefix length48

  14. CERNET2 NOC • Team • NOC Director (1) • Engineers(2) • help-desk(6) • dedicated for CERNET2 operation • 365*24 Service • 365×24helpdesk • 365×24 On-Call Engineer • Operation Procedure • Home-made ticket system for operation management • Documents • Ticket • Report(Daily, Weekly, Monthly)

  15. The picture of cernet2 NOC

  16. Research Activities • Softwire (4o6) • SAVA (Source Address Authentication) • Applications • ….. Currently, there are a lot of research activities on CERNET2.

  17. Softwire Softwire is a 4o6 solution. They deployed 8 testing nodes around 7 universities of 5 cities. They have now set up a working group in IETF and published RFC4925.

  18. SAVA SAVA is a source address authentication solution. They deployed 14 testing nodes on CERNET2. They also set up a working-group in IETF and published RFC5210.

  19. 6PlanetLab 6PlanetLab is another popular project which is cooperated with planetlab project. Currently they have developed 50 nodes around china in 25 cities.

  20. IPv6 based IPTV 3TNet connected to CNGI-CERNET2，transferring CCTV programs. Currently IPTV is the most popular application in CERNET2. Currently IPv6 network has no so much traffic as IPv4 network, but it may be a good situation for high bandwidth application.

  21. IPv6 IMS IPv6 IMS system. Support IP to phone based on SIP. Currently, there are about 1000 on-line users.

  22. ipv6.beijing2008.cn CERNET2 host official IPv6 website for Olympics Games 2008 at Beijing. This is the 1st official IPv6 website in the history of Olympics.

  23. 2. CPN Test • Test 100 CPNs of 100 famous universities in China • Focus on connectivity, Web and DNS services, Scaleof IPv6users

  24. Test method • Ping all CPN from a server on NOC • Dig DNS of all CPN from a server on NOC • Wget webpage of all CPN from a server on NOC • Setup a website and ask for sign on • http://6rank.edu.cn/

  25. Some Result • There are more than 200,000 IPv6 users access our test website • DNS Configuration is a major source of Problems • Availability • Some websites are not reachable due to DNS miss configuration. • Performance • DNS miss configuration may also cause long latency and thus cause low performance of web access. • IPv6 Performance of Unix is much better than Windows

  26. There are more than 200,000 persons visit testing websites. Most of CPN has more than 1000 users. During testing, the backbone traffic increased.

  27. 3. Research Project of NOC • GPERF • TRC • BGP-Grid CERNET2 NOC also involved in some research projects.

  28. GPERF(http://gperf.edu.cn) They develop a global active measurement system named GPERF. Currently GPERF has near 1000 probes covering more than 270 ASes. From Apr 2008, GPERF is used to monitor important information systems of Olympics. We will appreciate if any one would like host a gperf node. Gperf is very lightweight. It does not need a dedicated server.

  29. TRC(http://dragonlab.org) To support research of IPv6, CERNET2 NOC generate and publish IPv6 traffic trace. We also develop a IP anonymousized tools and open source.

  30. BGP-Grid We always meet much problems on inter-domain routing. However, it is not convenient to investigate them. It is hard to do emulation. And the testing works are very costly. The idea of BGP-grid is to construct a network by servers. This network has the same topology as real AS interconnection network. Use tunnel links to connect servers together. Inside each AS, the server learns routing information and policy from border router. We can do testing works in this BGP-grid without any affecting of commodity network.

  31. bgpgrid-113:~# bgping -c 1 203.91.120.0 BGPING 203.91.120.0... Ping route => 203.91.120.0 [seq=0] <- AS 24489 202.179.241.49 -> AS 23911 202.179.241.50 <- AS 23911 210.25.189.65 -> AS 23910 210.25.189.68 <- AS 23910 202.38.120.189 -> AS 24575 202.38.120.190 Pong route <= 203.91.120.0 [seq=0] <- AS 24575 202.38.120.190 -> AS 23910 202.38.120.189 <- AS 23910 210.25.189.68 -> AS 23911 210.25.189.65 <- AS 23911 202.179.241.50 -> AS 24489 202.179.241.49 bgpgrid-113:~# bgping -c 1 166.111.8.0 BGPING 166.111.8.0... Ping route => 166.111.8.0 [seq=0] <- AS 24489 202.179.241.49 -> AS 23911 202.179.241.50 <- AS 23911 210.25.189.65 -> AS 23910 210.25.189.68 Pong route <= 166.111.8.0 [seq=0] <- AS 23910 210.25.189.68 -> AS 23911 210.25.189.65 <- AS 23911 202.179.241.50 -> AS 24489 202.179.241.49 This is a tool of BGP-grid named bgping. It can show round-trip path and AS number.

  32. 4. Challenges • The old question “what is the killer application” • Interconnection between IPv4 and IPv6 • IPv6 user access IPv4 resources • IPv4 user access IPv6 resources • For a user to set up tunnel himself is not a good solution • Self-sufficiency of current IPv6 infrastructure

  33. Thanks!

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