Download - 1 CERNET Development CANS 2002 Xing Li. 2
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CERNET Development
CANS 2002
Xing Li
<2002-08-22>
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www.edu.cn
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CERNET Projects
CERNET Demonstration – 94-96 SPC
“95” Research & Development– 95-00 SPC
CERNET Satellite Backbone– 97-99 SPC
“211” Project– 97-01 MOE
Modern Distance Learning– 98-02 MOE
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CERNET Demonstration
National IP Backbone and International gateway
National network center
Regional Pops
Network management system
Network applications
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“95” Research & Development
Network management Network security Routing and switching Network design and simulation Chinese environment Distance learning Digital library Computer collaboration Distribute computing
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CERNET Satellite Backbone
22 earth stations
– 8 in regional Pops
– 14 in western regions
Ku-band
– 3.7M vs 2M
Policy based routing
– 80 port and above
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“211” Project
28 provincial Pops
– from 10 Pops
– to 38 Pops in provincial capitals
Mirror sites
– network information 10 sites
– discipline 12 sites
Distribute search engine
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Modern Distance Learning
High speed transport
High speed national backbone
High speed regional backbone
High speed MAN
Demos and services
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CERNET Infrastructure
Transport network
– DWDM/SDH
Satellite network
– SCPC
IP network
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CERNET Transport Network
Transport network
– 20,000 km
– 200+ relay stations
– DWDM 16x2.5G
– SDH 155M
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大连
北京
郑州
石家庄
武汉 合肥
南京 上海
长沙
南昌杭州
广州 福州
成都
昆明
重庆
厦门
海口
桂林
沈阳 哈尔滨天津
济南
南宁
深圳
national dark fiber
太原 青岛
CERNET Fiber Infrastructure
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DWDM/SDH
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DWDM
SDH
DWDM
2.5GROUTER
155MROUTERDWDM
SDH
SDH
SDH
DWDM
DWDM/SDH
DWDM
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92
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1
913
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91
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CERNET Satellite Network
Satellite network– Sino-sat – 22 earth stations
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CERNET Backbone
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
主干网地区网
GigaPop
Pop
桂林
深圳
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CERNET IP Addresses ip prefix-list CERNET permit 162.105.0.0/16 le 24 ip prefix-list CERNET permit 166.111.0.0/16 le 24 ip prefix-list CERNET permit 202.4.128.0/19 le 24 ip prefix-list CERNET permit 202.38.64.0/18 le 24 ip prefix-list CERNET permit 202.38.192.0/18 le 24 ip prefix-list CERNET permit 202.112.0.0/13 le 24 ip prefix-list CERNET permit 202.120.0.0/15 le 24 ip prefix-list CERNET permit 202.192.0.0/12 le 24 ip prefix-list CERNET permit 210.26.0.0/15 le 24 ip prefix-list CERNET permit 210.28.0.0/14 le 24 ip prefix-list CERNET permit 210.32.0.0/12 le 24 ip prefix-list CERNET permit 211.64.0.0/13 le 24 ip prefix-list CERNET permit 211.80.0.0/13 le 24 ip prefix-list CERNET permit 218.192.0.0/13 le 24 ip prefix-list CERNET permit 219.216.0.0/15 le 24 ip prefix-list CERNET permit 219.242.0.0/15 le 24 ip prefix-list CERNET permit 219.244.0.0/14 le 24 ip prefix-list CERNET permit 210.25.128.0/17 le 24
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Backbone Traffic
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BJ-IX Traffic
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CERNET statistics
CERNET GigaPops 8
CERNET MigaPops 36
Cities connected 200+
CERNET Members 1,000+
Users 10M+ 320M
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CERNET Services
SLA service Directory service Multicast service Video service Voice service IPv6 service CCERT service Accounting Service
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SLA (IP core)(better than this is more expensive than traditional TDM to produce)
Forwarding outage <3s Packet loss 0.05% Packet reordering 1% RRT CN (except sat. Link) 100ms RTT US 380ms RTT World 550ms Jitter 30ms
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SLA
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IP db
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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
R7arpR6a
rp
R5arp
R4arp
R2arp
R2arp
rp rprp
PIM-SP/mBGP/MSDP
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Video
Multicast & H.323
GigaPop 12PoP 40Key Univ. 100+
Multicast & H.323
GigaPop 12PoP 40Key Univ. 100+
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Voice
IP Phone
SoftSwitchAppServer
PolicyServer
NMSswitchSTP TMG
PSTN
GSM/CDMA/3G
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CERNET 6Bone address
Bit 3 13 32 16 64FP TLA ID
Generaladdressarchi-
tecture *
Definition
001 0x1FFE
NLA ID SLAID
Interface ID
Value 3FFE: 32 xr: pooo: aaaa: aaaa:aaaa:aaaa:aaaaMeaning TLA
For6bone
pseudo-TLA ID
ForCERNET
Region
NLA1ID
Organization
NLA2ID
SubnetID
Network Interface ID
Addressarchi-
tecturein the
Testbed
Bit 16 8 8 16 16 64
Notes: Only global aggregateable unicast address architecture is described.
FP: Format Prefix; 001 = aggregatable global unicast addressesTLA: Top Level Aggregation; 0x1FFE = 6boneNLA: Next Level AggregationSLA: Site Level Aggregation
x: 0 = Official ; 1 = Student Experimentr: Region Code (specified by CERNET)p: Code for Province (specified by NLA1 delegation in the region)ooo: Organization Code (specified by NLA1 delegation in the region)
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CERNET official IPv6 address
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CERNET IPv6 BGP Peers
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CCERT 服务
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anti-spam
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Accounting Analysis
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中国互连网预测 (1)
中国人口 12亿 – 每人 1个地址
72 class A IP addresses
– 每人每天拨号上网 1小时 1.68T/s
– 每人 1M网页 1200TB
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中国互连网预测 (2)
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APNIC IPv4 地址分布
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Situation
6.2 IPv4 Address Space currently allocated to the RIRs RIPE has 7 x /8’s (62, 193, 194, 195, 212, 213, 217) ARIN has13 x /8’s ( 63, 64, 65, 66, 199, 200, 204, 205, 206, 207, 208, 209, 216) APNIC has 6 x /8’s (61, 202, 203, 210, 211, 218)
IANA still has many address blocks reserved and available for allocation to RIRs, namely:
1, 2, 5, 7, 23, 27, 31, 36, 37, 39, 41, 42, 49, 50, 58, 59, 60, 67-95, 96-126, 197, 201, 219-223, i.e. 84 /8s. In addition to this, the former "Class B" space is completely free from 173/8 to 191/8, i.e. 19 /8s. This makes a total of 103 /8s available for allocation to the RIRs.
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Likely
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Resource distribution
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IP & GDP
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Setting protocol
1999, the IETF IPv6 Working Group announced that the protocol was finished and ready for implementation.
Sept. 2000, Japan advocated deployment of IPv6 Feb. 2001, South Korea followed April 2001, European Commission called for its quick
adoption United States has shown little enthusiasm for
implementation of the next-generation Internet.
2000 Dow Jones & Company, Inc.2000 Dow Jones & Company, Inc.
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Comments (1)
Scalability– Address– Routing
Multihoming
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Comments (2)
Next Generation applications End-to-end Information resources
High performance Parallel TCPReliable UDP?
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Comments (3)
Other considerations– Security– Mobility– QoS– ?
New business model The reasonable charging model
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Comments (4)
International collaboration
More bandwidth Asia - USAsia - EU
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CANS 2002 NMS
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traceroute
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Wireless access
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Q&A
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Research Areas
Network architecture, measurement and behavior– CERNET IPv6
Distributed search engine– net-compass.net
Multimedia and multicast– cool-audio/video/meeting/channels, cernet video
IDS– CCERT