CNGI-CERNET2 Operation Oct 21, 2008

Outline 1.CNGI-CERNET2 updates 2.CPN Measurement 3.Research Project of NOC 4.Challenges

1. CNGI-CERNET2 updates

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

Due Topology of CNGI-CERNET2 (2006-8) topology when CNGI-CERNET2 project is finished 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.

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

Statistics of Tickets and Traffic ( ~ ) 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

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

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

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

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

Assigned IPv6 Address Blocks IPv6 address space continue to grow.

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::/32 and with prefix length48

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

The picture of cernet2 NOC

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

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.

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.

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

IPv6 based IPTV 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. 3TNet connected to CNGI-CERNET2 ， transferring CCTV programs.

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

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.

2. CPN Test Test 100 CPNs of 100 famous universities in China Focus on connectivity, Web and DNS services, Scale of IPv6 users

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 –

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

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

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

GPERF( 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.

TRC( To support research of IPv6, CERNET2 NOC generate and publish IPv6 traffic trace. We also develop a IP anonymousized tools and open source.

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.

bgpgrid-113:~# bgping -c BGPING Ping route => [seq=0] <- AS > AS <- AS > AS <- AS > AS Pong route <= [seq=0] <- AS > AS <- AS > AS <- AS > AS bgpgrid-113:~# bgping -c BGPING Ping route => [seq=0] <- AS > AS <- AS > AS Pong route <= [seq=0] <- AS > AS <- AS > AS This is a tool of BGP-grid named bgping. It can show round-trip path and AS number.

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

Thanks!