1 CERNET Update and Joint Videoconference Project Congxiao Bao, Xing Li, Jianping Wu CERNET Center.
Transcript of 1 CERNET Update and Joint Videoconference Project Congxiao Bao, Xing Li, Jianping Wu CERNET Center.
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CERNET Update and Joint Videoconference Project
Congxiao Bao, Xing Li, Jianping Wu
CERNET Center
<2003-04-08>
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Outline
Background
CERNET Update
Videoconference System
Case Study
Proposal
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Background
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CERNET
China Education and Research Network is one of the 10
national IP backbones in Mainland China
CERNET is the 2nd largest IP backbone
The equipment founding came from MoE and State
Planning Commission
The Operation is self funded
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CERNET Statistics
36 PoPs covers all the provincial capitals
More than 1,000 universities
Located in 200+ cities
Currently about 10M users
There are 320M Students in China
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CERNET Layer 3 Topology
徐闻
长春
哈尔滨
乌鲁木齐
拉萨
西宁兰州银川
呼和浩特
台北
沈阳
南昌
西安 徐州
武汉 合肥
郑州
石家庄
北京
南宁
广州
福州
杭州
上海
南京
天津
贵阳
海口
三亚
湛江
无锡
大连
太原 济南 烟台
成都
长沙
重庆 黄梅
九江
昆明
青岛
汕头
唐山
汉中
宜昌
珠海深圳惠州
柳州百色 厦门
Backbone Regional
GigaPop
Pop
桂林
深圳
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2.5G to 8 GigaPops
155M to 28 MigaPops
45M to STARTAP
10M to APAN
2M to JANET
2M to HARNET
200M to Global Internet
CERNET Links
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CERNET Multicast Development Native Multicast Service across 36 Pops all over country PIM-SM/MBGP/MSDP + 9 Anycast RPs Multicast routing security control CERNET multicast monitoring Tools
– Multicast beacon– Multicast traffic monitoring– MBGP monitoring– MSDP monitoring
National peer– NSFCNET
International peers– APAN– Abilene
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STARTAP APAN-TXP
NSFCNET
nqhuBR+rp
R1.1rr s
CERNET
R2.1rr s
R3.1rr s
R4.1rr s
R5.1rr s
R6.1rr s
R7.1rr s
R8.1rr s
R0lBR
R0bBR
Rx6BR
R1arp
R8arp
R7arp
R6arp
R5arp
R4arp
R2arp
R2arp
rp rprp
CERNET Multicast Services
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CERNET Videoconference System
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CERNET Videoconference System
Two units of VC
– Unicast (H.323 )
Polycom 8 cities (will be in 36+ cities)
MCU 1 (will be multiple)
– Multicast (AG) Chinese Version 12 cities (will be in 36+ cities)
Quality measurement system
Unified management system
Service coordination model
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Video Conferencing Future Plan
CERNET Giga Pops 10
CERNET Mega Pops 28
Top Universities 71
Member universities 1,000+
All schools 1.35M
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Related Research Areas (1)
Large scale dialing plan
Time zone crossing scheduling system
Quality control for the heterogeneous network
environment across the country
Smart gateway between H.323 system and multicast
system
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Related Research Areas (2)
Stronger conference control tools
Wireless multicast video in Campus
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Case Study
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Cases
SC Global 2001 multicast
CANS2002 H.323
APAN2002 H.323
Interview H.323 and multicast
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SC Global 2001
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CANS2002 APAN2002
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Chinese Students interview (Boston Univ.)
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Chinese Students interview (Texas-Au Univ.)
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Proposal
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Services
Provide videoconference services
– H.323
– multicast
To
– CERNET member universities
– Internet2 member universities
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Possible Areas
Joint seminars
International workshops
Interview services
Remote lecturing
Remote Lab.
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Comments and Suggestions?