David Foster Head, Communications and Networks CERN

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David FosterHead, Communications and Networks

CERN

LHC NetworkingLHC Grid FestOctober 2008

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2 CERN – March 2007

Map of the Internet

You are here(perhaps)

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LHC Tier0-Tier1 Network Contributors

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Showing end-end links made by “stitching” circuitstogether from different contributors and backup linksfor resiliency

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GÉANT2: Consortium of 34 NRENs

Dark Fiber Core Among16 Countries:

AustriaBelgiumBosnia-Herzegovina Czech RepublicDenmarkFranceGermanyHungaryIrelandItaly,NetherlandSlovakiaSloveniaSpainSwitzerlandUnited Kingdom

22 PoPs, ~200 Sites38k km Leased Services, 12k km Dark Fiber Supporting Light Paths for LHC, eVLBI, et al.

H. Doebbeling

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LHC OPN Architecture

Tier-2s and Tier-1s are inter-connected by the general

purpose research networks

Any Tier-2 mayaccess data at

any Tier-1

Tier-2 IN2P3TRIUMF

ASCC

FNAL

BNL

Nordic

CNAF

SARAPIC

RAL

GridKa

Tier-2

Tier-2

Tier-2

Tier-2

Tier-2

Tier-2

Tier-2Tier-2Tier-2

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Global Lambda Integrated FacilityWorld Map – May 2008

www.glif.is

Visualization courtesy of Bob Patterson, NCSA/University of Illinois at Urbana-Champaign.Data compilation by Maxine Brown, University of Illinois at Chicago. Earth texture from NASA.

Link To TIFR

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HEP Bandwidth Roadmap for Major Links (in Gbps): USLHCNet Example

Year Production Experimental Remarks

2001 0.155 0.622-2.5 SONET/SDH

2002 0.622 2.5 SONET/SDH DWDM; GigE Integ.

2003 2.5 10-20 DWDM; 1 + 10 GigE Integration

2005-6 10-20 2-10 X 10 Switch; Provisioning

2007-8 3-4 X 10 ~10 X 10; 100 Gbps

1st Gen. Grids

2009-10 6-8 X 10

~20 X 10 or ~2 X 100

100 Gbps Switching

2011-12 ~20 X 10 or 2 X 100

~10 X 100 2nd Gen Grids Terabit Networks

2013-5 ~Terabit ~MultiTbps ~Fill One Fiber Paralleled by ESnet Roadmap for Data Intensive Sciences

HarveyNewman

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Exponential Growth

Gilder’s Law(32X in 4 yrs)Storage Law (16X in 4yrs)

Moore’s Law(5X in 4yrs)

Triumph of Light – Scientific American. George Stix, January 2001

Per

form

ance

per

Dol

lar S

pent Optical Fibre

(bits per second)

Chip capacity(# transistors)

Data Storage(bits per sq. inch)

Number of Years0 1 2 3 4 5

9 12 18

Doubling Time(months)