plans for the uklight dark fibre network uklight town meeting national e-science centre, edinburgh
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Plans for the UKLight Dark Fibre Network UKLIGHT Town Meeting National e-Science Centre, Edinburgh. Setting the Scene. Today, bandwidth is the key ingredient for nearly every initiative and service within higher education institutions - PowerPoint PPT PresentationTRANSCRIPT
UKLight DF
UKLight
DF
Plans for the UKLight Dark Fibre NetworkPlans for the UKLight Dark Fibre Network
UKLIGHT Town Meeting
National e-Science Centre, Edinburgh
UKLight DF
UKLight
DF Setting the Scene
Today, bandwidth is the key ingredient for nearly every initiative and service within higher education institutions Research in particular is driving the need for additional bandwidth Advances in the tools used for teaching and learning have also driven
an increase in demand beyond research
We need to get control over the infrastructure that connects our campuses and labs
Dark fibre has become the key enabler for institutions to get control over their BW needs for research, teaching and learning
UKLight DF
UKLight
DF Basic Terminology
Lit service: Is a connection that you purchase from a telecommunications
provider A specified amount of bandwidth for a specified monthly cost The provider handles all the elements between your campus router
and the router at the destination
Dark fibre: Is a fibre optic connection path that has not been lit Dark fibre is something you acquire, either through buying or leasing
unused fibre, or through installing new fibre You own the path and you are responsible for the integrity of that
path, and for acquiring equipment to light the fibre and make it carry information
UKLight DF
UKLight
DF Why DF?
Primary drivers: Low cost & simplicity
Simple network design (no SDH, no ATM): Use of raw lambdas or Ethernet-Interfaces all over the place
Transparent optical paths Network scalable to multiples of 10 Gbps or 40 Gbps with low
additional cost Natural hierarchy of technologies
DWDM on main trunk lines (128 today, expandable if later needed) CWDM or single GE to smaller sites off the backbone
Long living infrastructure, no need to change provider every couple of years
Interruptions mainly due to planned maintenance True fiber cuts are rare, but last for hours if not days (e.g. fiber on high
voltage power lines, fiber along railway)
Independence of carrier market
UKLight DF
UKLight
DF Why DF?
Long term benefits: Liberating effect on users and applications constrained by BW Organizations increase their performance and availability by sharing
infrastructure and resources with other organizations/institutes i.e. creation of virtual laboratories, libraries, remote instrumentation
Radical change to the current Telecom model Customer-empowered and customer-controlled network models Extending the Internet model of peering autonomous networks from the
logical to the physical layer: hundreds of "customer-owned " networks interconnected by "customer-owned"
wavelengths on long-haul DWDM systems
UKLight DF
UKLight
DF Pros and Cons of DF Networks
Technical View Operational View Economic View
Stable, long living infrastructure
We are the boss Low recurring cost
High future potential
(transparency, upgradeability)
Χ Big effort for negotiations with a lot of
contract partners
Low marginal cost for additional bandwidth
Experimenting with new network concepts
and technologies
Χ No single provider to blame in case of connection loss
Χ High initial investment
Χ None Χ Need personnel to maintain the network
Χ Uncertainty about development of BW prices
Pros () & Cons (Χ)
UKLight DF
UKLight
DF Who Needs DF Networks
Corporations with high Bandwidth requirements, hospitals, banks Reduce the cost of line rentals Security - reliability Future increase of BW / network updates Improve client-business relations (online products, services)
Storage – computational - visualization – media facilities Variety of speed connections with respect of the equipment used (2.5Gb/s
– 10Gb/s) Offer greater variety of services without restriction by the carriers
infrastructure
Research Facilities – Universities – Colleges Experimental test-beds – new technologies protocols and applications Distributed resources (libraries, databases, computing facilities)
UKLight DF
UKLight
DF DF Fundamental Enabler of Research
Researchers around the world are acquiring DF or dedicated wavelengths on DF for specific experiments and Grids
We are currently creating a pool of wavelengths and fibres dedicated to specific applications the same way we have today a pool of distributed computing and storage resources
Without fibre and wavelength resources research communities will be unable to support their future computational and communication needs
UKLight DF
UKLight
DF
0 1 2 3 4 5 6
Number of years
Perf
orm
ance p
er
Dollar
Spent
Optical fibre(bits/sec double every 9
months)
Data Storage(bits per square inch
double every 12 months)
Silicon Computer Chips(Number of transistors
double every 18 months)
Source: Scientific American
Why DF will become the 21st Century Driver for Computing
Optical Technologies offer huge capacity at relatively cost
Bandwidth is getting cheaper and faster than storage and storage is getting cheaper and faster than computing. It makes sense to use BW in order to conserve silicon area and transistors
UKLight DF
UKLight
DF
Examples of DF Networks for the Research Community
The SURFnet6 Network
Argonne
UIC
IITUChicago
UIUC/NCSA
Starlight(NU-Chicago)
I-WIRE
UKLight DF
UKLight
DF
NNWManchester
NNWManchester
St PancrasSt Pancras
EastNetCambridge
EastNetCambridge
WarringtonC-PoP
WarringtonC-PoP
ULCC - LABULCC - LAB
10G10G
Leased BandwidthLeased Bandwidth
ULCCULCCAmsterdamAmsterdam
10G10G
10G10G
10G10G
ChicagoChicago
10G10G
LeedsC-PoP
LeedsC-PoP
C&NLMANLancaster
C&NLMANLancaster
CLRC-RALCLRC-RAL
ReadingC-PoP
ReadingC-PoP
YHMANLeeds
YHMANLeeds
UKLight International and Phases 1 & 2
UKLight DF
UKLight
DFUKLight Dark Fibre Network: Phases
1&2
LEANET Fibre
UKLight DF Fibre
UCL
Southampton
AstonCambridge
Essex
Adastral Park
Manchester
eMerlin fibreeMerlin fibre
NetherlightStarlight
Connection to other facilities
Lancaster Leeds
Reading
CCLRC-RAL
UKLight International nodes & connectivity to international
exchanges
UKLight DF
UKLight
DF UKLight DF for UK Photonics Research
Essex
Cambridge
UCL
Aston
Southampton
International
UKLight DF Wavelength routed test-bedOptical packet core router and
edge interfaces160 Gb/sec OTDM facility
4x160 Gb/sec OTDM test-bed
Recirculating loopRaman amplifiers BT Labs
CIP (Centre of Integrated Photonics)
Agile WDM channel generation (< 10 ns)Optical regenerators (10 & 40 Gb/s)
DWDM Wavelength RoutersWDM test beds for 10, 40, 160 Gb/s
Optical regenerationOCDMA test bed
Ultrafast links and switches for OTDM routing
Low cost links for 40 Gb/s Quantum dot based switches,
amplifiers and routers for ultrabroadband WDM operation
UKLight DF
UKLight
DF
The Optical Network Will Create the Backbone for High Performance-Data Intensive Grid
Computing
Applications &Middleware
Computing clusters and storage
Dyn
am
ic o
pti
cal
netw
ork
Optical switching interfaces
signalling & monitoringWDM links
-switchingor
hybrid solutions
Optical burst switching
Optical packet switching
CONTROL
PLANE
GUNI GRNI
UKLight DF
UKLight
DFProposal for a Network
Demonstrator
OPS Agile Interface
MEM+SOA based optical routers withsignal monitoring &
selective O-E-O & optical regeneration
/OBS/OPS
OADM
OADM
OADM
OADM
Agile Interface
Data Network
Fast reconfigurable OADMs
UK Social Sciences Data Archive
10-40 Gbit/sec nsec agility
Electrical Telecom Subnetwork(Adastral Park)
Peering optical router
Computationalresources
Data Intensive Users
Agile OBSInterface
RANI
RANI
RSNI
>10 Gbit/secmsec agility
Cambridge
ASTON
UCL
Essex
OPS: Optical Packet SwitchingOBS: Optical Burst SwitchingSOA: Semiconductor Optical amplifierRSNI: Resource Scheduling InterfaceRANI: Resource Allocation Interface
UKLight DF Links
sec agility
>40 Gbit/sec
msec agility
Data Intensive
Users
RSNI
Agile Interface
UKLight DF
UKLight
DF OXCs
Input
Node Control
1
N
Tx Rx
SelectiveRegeneration
Rx Tx
OutputM
on
ito
rin
g
OWS
Co
nd
ition
ing
UKLight DF
UKLight
DF Optical Packet Router
HeaderProcessing
Tunable lasers
TWC
TWC
TWC TWC
TWC
TWC
HeaderProcessing
Tunable lasers
TWC
TWC
TWC TWC
TWC
TWC
UKLight DF
UKLight
DFAgile Optical Interface for and Sub-
Granularities
GCSR LASER
Impedance matching
Impedance matching
Precise Current Source
TECControl
Reflector
Coupler
Gain
Phase
FPGAController
+Wavelength Lookup Table
High-PrecisionDAC
High-PrecisionDAC
Laser controller module
2
Impedance matching
High-PrecisionDAC
