1 CERNET Update and Joint Videoconference Project Congxiao Bao, Xing Li, Jianping Wu CERNET Center

2 Outline l Background l CERNET Update l Videoconference System l Case Study l Proposal

3 Background

4 CERNET l China Education and Research Network is one of the 10 national IP backbones in Mainland China l CERNET is the 2nd largest IP backbone l The equipment founding came from MoE and State Planning Commission l The Operation is self funded

5 CERNET Statistics l 36 PoPs covers all the provincial capitals l More than 1,000 universities l Located in 200+ cities l Currently about 10M users l There are 320M Students in China

6 CERNET Layer 3 Topology

7 l 2.5G to 8 GigaPops l 155M to 28 MigaPops l 45M to STARTAP l 10M to APAN l 2M to JANET l 2M to HARNET l 200M to Global Internet CERNET Links

8 CERNET Multicast Development l Native Multicast Service across 36 Pops all over country l PIM-SM/MBGP/MSDP + 9 Anycast RPs l Multicast routing security control l CERNET multicast monitoring Tools –Multicast beacon –Multicast traffic monitoring –MBGP monitoring –MSDP monitoring l National peer –NSFCNET l International peers –APAN –Abilene

9 STARTAPAPAN-TXP NSFCNET nqhu BR+rp R1.1 rr s CERNET R2.1 rr s R3.1 rr s R4.1 rr s R5.1 rr s R6.1 rr s R7.1 rr s R8.1 rr s R0l BR R0b BR Rx6 BR R1a rp R8a rp R7a rp R6a rp R5a rp R4a rp R2a rp R2a rp CERNET Multicast Services

10 CERNET Videoconference System

11 CERNET Videoconference System l Two units of VC –Unicast (H.323 ) l Polycom8 cities (will be in 36+ cities) l MCU1 (will be multiple) –Multicast (AG) l Chinese Version12 cities (will be in 36+ cities) l Quality measurement system l Unified management system l Service coordination model

12 Video Conferencing Future Plan l CERNET Giga Pops10 l CERNET Mega Pops28 l Top Universities71 l Member universities1,000+ l All schools1.35M

13 Related Research Areas (1) l Large scale dialing plan l Time zone crossing scheduling system l Quality control for the heterogeneous network environment across the country l Smart gateway between H.323 system and multicast system

14 Related Research Areas (2) l Stronger conference control tools l Wireless multicast video in Campus

15 Case Study

16 Cases l SC Global 2001multicast l CANS2002 H.323 l APAN2002 H.323 l Interview H.323 and multicast

17 SC Global 2001

18 CANS2002 APAN2002

19 Chinese Students interview (Boston Univ.)

20 Chinese Students interview (Texas-Au Univ.)

21 Proposal

22 Services l Provide videoconference services –H.323 –multicast l To –CERNET member universities –Internet2 member universities

23 Possible Areas l Joint seminars l International workshops l Interview services l Remote lecturing l Remote Lab.

24 Comments and Suggestions?