JANET Research Infrastructures - Jisc · research on Photonics and Optical systems • Dark Fibre...

Copyright JNT Association 2008 JCN - Feb 2008 1

JANET Research InfrastructuresDavid SalmonJANET(UK)


Topics• JANET Lightpath Service

• Projects• Level 0 network

• JANET Aurora• Measurement & Monitoring


JANET Lightpath Service


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


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


High Energy Physics (HEP) (Particle Physics)


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


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


LHC OPN (Optical Private Network)


High End Computing (HEC)


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


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


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


GENIUS

• Grid Enabled Neurosurgical Imaging Using Simulation

• Perform brain blood flow simulations in support of clinical neurosurgery


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.


GENIUS Lightpaths


Astronomy

Copyright JNT Association 2008 JCN - Feb 2008 17Lovell telescope at Jodrell Bank


Linking Radio-Telescopes across Europe (& beyond)

• Very Long Baseline Interferometry (VLBI) network

• Real-time signal correlation

• Forms a more powerful “single” telescope

• Better Science


Network Research

R&D into computer networks and they way they are used/behave


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


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


JANET Aurora


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


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


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 !)


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


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


Measurement & Monitoring


JANET Netsight2• New system

• Gather reporting data• Extensible architecture• Fine grained access control

• Access for researchers could also provide basic traffic volume information


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.


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


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


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


• Reading

• London

• 8 Channel Splitters

• Optical Switch

• (Monitoring system )


Deep Monitoring

Router Transmission

Monitor

Optical Switch


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


A micro-mirrorSize ~ 1.5 * 1.5 mm

Mirror tilts ~ +- 1 degree on each axis

Mirror spacing ~ 2mm


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

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JANET Research Infrastructures - Jisc · research on Photonics and Optical systems • Dark Fibre...

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