janet research infrastructures - jisc · research on photonics and optical systems • dark fibre...
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Copyright JNT Association 2008 JCN - Feb 2008 1
JANET Research InfrastructuresDavid SalmonJANET(UK)
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Topics• JANET Lightpath Service
• Projects• Level 0 network
• JANET Aurora• Measurement & Monitoring
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JANET Lightpath Service
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JANET Lightpaths• Dedicated network
connections for demanding projects and applications
• Typically around 1Gbit/s, some at 10Gbit/s
• Transfer times for• CD - 700MBytes• DVD - 5GBytes
6s 40s
0.6s 4s
DVDCD
1Gb/s
10Gb/s
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Project Classification• Single lightpath
• 1 point to point connection• Multiple Lightpaths
• Multiple p2p connections• Starting to build an “overlay” network
• Project lifetimes / Lightpath persistence• Months to years• Persistent or semi-persistent overlays
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High Energy Physics (HEP) (Particle Physics)
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CERN• Large Hadron Collider (LHC)
• Four major experiments
• Huge data rates
• Start to gather data in 2008
• 10Gbit/s link from RAL – CERN
• Tests of Computing infrastructure
CMS
ATLAS
LHC-b
Alice
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YHMAN
Dublin (HEANET)
NIRAN
C&NLMAN
UHIFaTMAN
AbMAN
Clydenet
EaStMAN
NorMAN
NNW
TVN LMN
EastNetMidMAN
LeNSE
WREN
SWERN
Kentish MAN
EMMAN
Bristol
Glasgow
Reading
Warrington Leeds
LondonT-City T-House
STFC - RAL (Rutherford Appleton Laboratory)
STFC - RAL
CERN - CH
Dedicated 10Gbit/s RAL - CERN
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LHC OPN (Optical Private Network)
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High End Computing (HEC)
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DEISA – Linking European SuperComputers
Each contributes CPU time to a central pool
Projects bid to use portions of the pooled time
Theoretical Physics – solving QCD
Meteorology – ensemble climate predictions
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YHMAN
Dublin (HEANET)
NIRAN
C&NLMAN
UHIFaTMAN
AbMAN
Clydenet
EaStMAN
NorMAN
NNW
TVN LMN
EastNetMidMAN
LeNSE
WREN
SWERN
Kentish MAN
EMMAN
Bristol
Glasgow
Reading
Warrington Leeds
LondonT-City T-House
STFC - DL Daresbury LaboratoryECMWF – European Centre for Medium Range Weather Forecasting
STFC - DL
ECMWF Reading
Frankfurt - DE
ECMWF currently 1Gb/s IP Upgrade being discussed
STFC 10GE Link due July
HECTOR - Edinburgh
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GENIUS
• Grid Enabled Neurosurgical Imaging Using Simulation
• Perform brain blood flow simulations in support of clinical neurosurgery
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GENIUS: HemeLB II
Acquisition of MRI volume data, 10243 at 0.25 mm
resolution.
Reconstruct patient specific cerebral system and boundary condition
setup.
Volume rendering of the effective von Mises stress
flow field obtained with HemeLB corresponding
to the reconstructed patient-specific vascular
system.
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GENIUS Lightpaths
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Astronomy
Copyright JNT Association 2008 JCN - Feb 2008 17Lovell telescope at Jodrell Bank
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Linking Radio-Telescopes across Europe (& beyond)
• Very Long Baseline Interferometry (VLBI) network
• Real-time signal correlation
• Forms a more powerful “single” telescope
• Better Science
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Network Research
R&D into computer networks and they way they are used/behave
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CambridgeCambridge
LancasterLancaster
GlasgowGlasgow
Testbed for network research
Network ResearchgroupsNetwork Researchgroups
St AndrewsSt Andrews
Dedicated network connecting network research departments
Equipment Installed & Managed by the researchers
Configured & operated to support their research agendas
Completely separate from JANET IP service – no risk of interference
UCLUCL
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Motivation – Future Internet Research
• Study real systems in a real network• Simulation has limits• Reproducible experiment
• Routing• New protocols/approaches• Non-commercial routers
• Measurement• Platform for “clean-slate” Next-Generation R & D
• US GENI/FIND & EU FIRE Programmes – explore ideas for future internet
• Autonomic networking – “Self-*”• Self-management• Self-optimisation• Self-monitoring• Self-healing• Self-Repair
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JANET Aurora
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What is JANET Aurora ?• A dark fibre network to support
research on Photonics and Optical systems• Dark Fibre network• Photonics• Type of project which might use
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What is dark fibre ?• Standard circuits from telcos
• They have fibre networks with their own equipment and they sell circuits
• BT, Verizon…• Dark Fibre
• Just buy (lease) access to an optical fibre from a telco (in the past they would not sell this & BT still won’t !)
• Put your own equipment on it to transmit data
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Why dark fibre ?• Photonics Work at this level needs a dedicated fibre
network• Researchers can put their own equipment on the fibres• Possibly equipment they have built themselves
• Investigate new devices & components• Lasers, Amplifiers, Modulators…• All the elements to make communication systems work
• New transmission techniques• Higher capacity (more bits/s) on each wavelength• More wavelengths
• Avoid disrupting other users• This kind of work can’t be done safely on shared fibres (eg
JANET !)
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JANET Aurora Dark Fibre Testbed supporting Photonics research
Telehouse
University of Essex
UCL
University of Cambridge
Intermediate equipment co-location pointUniversity / JANET access point
Interconnection with JANET Services - National & International Lightpaths
Broader community access to Dark Fibre facility
Fibre spans
Bury St Edmunds
Ipswich
ChelmsfordEnfield
72km
50km
54km
57km55km
30km
28km
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Photonics Examples• Phosphorus Project – EU FP6 funding
• End-to-end lightpath provisioning• Co-scheduling with GRID resources
• Photonics Device research• Install bespoke optical equipment on fibres
(lasers/modulators/compensators)• Ultra-fast photonics research
• Optical Burst Switching• Flow triggered switched lightpaths (genuine
lambdas/wavelengths)• Ultra fast photonics
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Measurement & Monitoring
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JANET Netsight2• New system
• Gather reporting data• Extensible architecture• Fine grained access control
• Access for researchers could also provide basic traffic volume information
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Data Gatherers
Remote DiskBackup
Data Throughput Manager
Measurement Database StandbyDatabase
WebE-mailsReports
...
DeliverySub-systems & web configuration Flow monitoring
CDF...
ExternalDatabases
Users
Measurement Systems
JANET/ RNOs/
...
Data Gatherer’s talk SNMP to routers & collect data from Measurement Systems.
Current Measurement Systems run ping tests only.
One of each at Bracknell, Warrington and Telecity.
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Research access to JANET traffic data
• JANET(UK) – framework for access to JANET traffic data• Ensure compliance with Law
• Regulation of Investigatory Powers Act (RIPA)• Data Protection Act (DPA)
• Contract with researchers• Describes work to be undertaken• How data will be handled & stored
• MASTS project on cusp of signing
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Optical Taps/Splitters• Monitor raw optical signal• Passive splitter – redirect a small proportion of the “live” signal• Active monitor/analysis system• Does not interfere with production traffic
Router Transmission
100% 80%
20%
Monitor
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YHMAN
Dublin (HEANET)
NIRAN
C&NLMAN
UHIFaTMAN
AbMAN
Clydenet
EaStMAN
NorMAN
NNW
TVN LMN
EastNetMidMAN
LeNSE
WREN
SWERN
Kentish MAN
EMMAN
Bristol
Glasgow
Reading
Warrington Leeds
LondonT-City T-House
• Reading
• London
• 8 Channel Splitters
• Optical Switch
• (Monitoring system )
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Deep Monitoring
Router Transmission
Monitor
Optical Switch
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Glimmerglass Optical Switch
Micro-mirror arrays used to steer beams of light from fibre to fibre
Size ~ 20cm * 20cm
Switch any input port to any output port
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A micro-mirrorSize ~ 1.5 * 1.5 mm
Mirror tilts ~ +- 1 degree on each axis
Mirror spacing ~ 2mm
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Summary• JANET Lightpath service
• Components of overlay networks• Supporting Science & Network research
• JANET Aurora• Enabling strategic Photonics & Optical
Systems Research• Network Monitoring
• Research access to traffic data• Policy, legal framework & technology