Transcript JANET - What it is, History, Current Issues

JANET – what it is, history,
current issues
Geoff McMullen
([email protected])
Agenda
• What is JANET?
• A little history
• Influences on traffic growth
• Technical challenges
• Bigger challenges
• Conclusion
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What is JANET?
• JANET is a National Research and
Education Network (NREN)
• There are many others
• See WWW.TERENA.NL for other
European ones and helpful links
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SuperJANET History
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NRENs
• Connect Education and Research
establishments to the Internet
• Some restrict themselves to HE
and Research
• Some include vocational education
• Some include schools
• Some include employers
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Scope of JANET
•
•
•
JANET is intended to be inclusive – it connects
all HE, all public research, all public vocational
education centres, many schools and some
employers
It use has grown steadily
It is an investment for the public good ahead of
demand
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Then and now
• Budget £1.8million (2001 money) in
1985
• Typical speeds 64kbps
• Linking 11 regional centres for Research
• Comparable budget now some £23
million
• Backbone speed 2.5Gbps (20 Gbps planned)
• Linking 700+institutions across education
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History - Organisation
• 1978 - 1981 - SRC Study team
• 1981- 1993 - RAL project team (JNT)
• 1984 - Executive runs network
• 1992 - JISC created
• 1993 - UKERNA “spin off” decision
• 1994 - date Company limited by
guarantee - all income from public
funds
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History - Network
• 1979 - review of existing HE provision
• 1984 - JANET (4.8 Kbps, then continued
upgrades to 2Mbps)
• 1991-1992 - Internet conversion
• 1993 - move to SuperJANET 1
• 1998 - SuperJANET III - 155Mbps
• 2001 - SuperJANET 4 - 2.5 Gbps +
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Network organisation
Scottish
Interconnect
NNW
Glasgow Edinburgh
N.I.
N Wales
MidMAN
NORMAN
YHMAN
Leeds
Warrington
Reading
London
Thames
Valley
EastNET
LMN
Bristol
South
Wales
BWEMAN
/SWAN
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EMMAN
Portsmouth
Kentish
MAN
US
LINX
TEN-155
ETC.
LeNSE
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Technologies
• Backbone – Optical Fibre
• MANS – Fibre, co-ax, Microwave
• Local – Copper, co-ax, wireless,
satellite
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Influences on traffic growth
• Moving images
• Remote teaching and learning (eUniversity?)
• Endogenous growth
• E-science (The GRID, and other
things)
• E-business
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Influences - continued
• Growth in self-provided services
• Multimedia/Library digitisation
• Net competent students
• The geography of the learning
experience
• Mobile communications
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Influences - continued
• Improved local and regional
infrastructure
• Digital television
• Lifelong Learning
• Commercial relationships (ASP
services)
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Technical Challenges
• Authentication/Security/Integrity
• Customer Support
• Reliability
• Traffic planning and management
• Pervasive access
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Bigger Challenges - 1
• Changing Customer Base
• Inclusive systems of governance
• Top Slice vs. charging
• Do we still need a private network?
• The role of the MAN
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Bigger Challenges - 2
• Flexibility to enable further
educational connections
• The telecommunications market
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Conclusion
1.
2.
3.
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Increasing applications and
reducing prices lead to greater
network use
Societal changes reinforce this
tendency
“Quantitative change leads to
qualitative change”
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Conclusion - continued
4.
5.
6.
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Qualitative change shows up in
the growth of the user community
It is affecting arrangements for
funding, network management
and customer support
Service quality remains high
despite the tumult in the market
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