Transcript 计算机网络管理

The Need for IPv6 in China
Jianping Wu，Director of CERNET
Jilong Wang
2002-10-28
Content
Requirements for IPv6 In China
Service Providers’ Vision about IPv6
R&D Efforts
2
Resource distribution
3
16.13
4
China Internet
Estimation
Population in mainland China
1,200,000,000

1 IP per person


1 hour on line (28.8kbps) per person per day
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
72 class A IP addresses
1.68T/s
1 MB homepage per person

1200TB
5
Internet User trends
2000
1500
Global Internet user
1000
Need IPv6
500
China user
09
20
07
20
05
20
03
20
01
20
99
19
97
19
95
0
19
Users (Millions)
2500
China need 72 /8 IP addresses if 1 IP/person
Telephone user trends in China
user(Million)
300
250
Need VoIP
200
Fixed
Mobile
150
100
50
Need Mobile IP
0
1996 1997 1998 1999 2000 2001
7
Millions
APNIC IPv4 Address Distribution
40
2002
2001
2000
1999
1998
1997
1996
Pre-1996
32
24
16
8
0
JP
CN
KR
AU
TW
HK
IN
TH
MY
SG
Other
Requirements for IPv6
Scalability Challenges
Size（Address Space）
 Performance（Routing）

Manageability Challenges
Security
 QoS
 Mobility

Application Promotions
9
Special Opportunities
for IPv6 in China
Development of Broadband
Education Application
Relative Small IPv4 Coverage（some
easy to change or adapt new）
Encouragement From Government
Olympics 2008
10
Different Voice
How many IPv4 addresses can China get？
Will IPv4 NAT work for China?
Should China implement IPv6?
Who pay for IPv6 transition?
Will China benefit from new features of IPv6 ?
What are the killer applications of IPv6 ？
11
Service Providers
China Telecom
CERNET（Noncommercial）
China Mobile
China Netcom
China Unicom
China Railway
China Satellite
CSTNET （Noncommercial）
12
China TeleCom
13
China MobileCom
万户
12000
10000
8000
系列1
6000
4000
2000
0
1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001
系列2 0.32 0.98 1.83 4.75 17.7 63.8 156.7 356
系列1
0
0
0
0
0
0
0
15
520
642
628
504
322
0
164
683 1732 3302 6328 10381
年度
系列2
Policies
Follow the development
Research on business model
Transition from IPv4 to IPv6


Key Tech.
Terminals
Test



Tech
Service
Operation
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China Netcom
A Large-Scale IPv4 Network Built
Concerned with the benefits of IPv6



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IPv4 still can manage to work
How to use existing IPv4 equips
Cost for Transition
Maturity of IPv6
Hence and egg Problem


No operational network to support app
No killer app to promote Network deployment
16
CERNET
哈尔滨
乌鲁木齐
长春
沈阳
呼和浩特 北京
唐山
银川
兰州
西宁
天津
石家庄
太原
大连
济南
烟台
青岛
郑州
西安
徐州
汉中
南京
成都
无锡
重庆
拉萨
武汉
宜昌
黄梅
九江
长沙
南昌
贵阳
主干网
地区网
GigaPop
Pop
昆明
上海
合肥
杭州
福州
台北
桂林
柳州
广州 厦门
汕头
百色
南宁
湛江
惠州
深圳
珠海
深圳
徐闻
海口
三亚
17
CERNET Computer
Backbone
GigaPops
8
MigaPops
36
City Coverage
160+
Member
1000+
End Users
10M+
18
CERNET IPv6
19
Services
IP allocation by CerNIC
Tunnel broker
Common applications

WWW

DNS

FTP
20
Future
Developing Native IPv6 Network

Parallel Develop with IPv4 Internet

Merge Transparently with IPv4 on service and
application level
Maybe First Success in Some Special Area
Success Depends on the Speed of
Commercialization
21
IPv6 Efforts
1998, CERNET-IPv6 Test-bed
1999, IPv6 demo system funded by MST 863
1999, CERNET-Nokia joint IPv6 project
2000, NSFCNET funded by NSFC
2001, IPv6 Router funded by MST 863
2001, IPv6 MAN demo system funded by
CAS
2002, IPv6-CJ funded by Chinese
government and Japanese government
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IPv6-CJ Test-bed
Chinese
Japanese
Other Netorks
IPv6 test-bed
Beijing
Guangzhou
IPv6-CJ Backbone
Shanghai
Guangzhou
Shanghai
Beijing
IPv6 MAN/LAN
IPv6 MAN/LAN
IPv6 MAN/LAN
23
CJ-IPv6 Joint Project
Supported by Chinese and Japanese Government
Project Contents


More than 20 Org. and Companies
Test bed: IPv6, 2.5Gbps connect BJ, SH and GZ

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Systems: IPv6 Router/Switch, Host and Terminals
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Connect Local IPv6 Testbed
Backbone IPv6 Router from Japanese Companies and Another
Link to Japanese IPv6 Networks at 45Mbps
WLAN Mobile System and IPv6 Security
Applications: IPv4 to IPv6, IPv6 Applications
Standard:
24
Vendors
25
Thanks！
26