1 1 david foster head, communications and networks cern lhc networking lhc grid fest october 2008
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David Foster
Head, Communications and Networks
CERN
LHC Networking
LHC Grid Fest
October 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 IN2P3
TRIUMF
ASCC
FNAL
BNL
Nordic
CNAF
SARAPIC
RAL
GridKa
Tier-2
Tier-2
Tier-2
Tier-2
Tier-2
Tier-2
Tier-2Tier-2
Tier-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
Pe
rfo
rman
ce p
er D
olla
r S
pen
t 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)