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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?