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Network Connections for the Worldwide LHC Computing Grid Tony Cass Leader, Communication Systems Group Information Technology Department 11 th December.

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Presentation on theme: "Network Connections for the Worldwide LHC Computing Grid Tony Cass Leader, Communication Systems Group Information Technology Department 11 th December."— Presentation transcript:

1 Network Connections for the Worldwide LHC Computing Grid Tony Cass Leader, Communication Systems Group Information Technology Department 11 th December 2014 1

2 2 The Computing Challenge The accelerator will run for 20 years Experiments are producing about 25 Million Gigabytes of data each year (about 3 million DVDs; 850 years of movies!) LHC data analysis requires computing power equivalent to ~100,000 of today's fastest PC processors Requires many cooperating computer centres, as CERN can provide only ~20% of the capacity CERN Tape Writes

3 3 The Worldwide LHC Computing Grid

4 4 Tier1 Network Connections edoardo.martelli@cern.ch 20140620 T0-T1 and T1-T1 traffic Not deployed yet (thick) >=10Gbps (thin) <10Gbps UK-T1-RAL █ █ AS 43475 130.246.176.0/22 130.246.152.240/28 IT-INFN-CNAF █ █ AS137 131.154.128.0/17 FR-CCIN2P3 █ █ AS789 193.48.99.0/24 2001:660:5009:9::/64 NDGF █ AS39590 109.105.124.0/22 2001:948:40::/42 CA-TRIUMF █ AS36391 206.12.1.0/24 206.12.9.0/29 206.12.9.64/28 US-FNAL-CMS █ AS 3152 131.225.2.0/24 131.225.160.0/24 131.225.184.0/22 131.225.188.0/22 131.225.204.0/22 US-T1-BNL █ AS43 130.199.185.0/24 130.199.48.0/23 130.199.54.0/24 192.12.15.0/24 █ = Alice █ = Atlas █ = CMS █ = LHCb p2p prefix: 192.16.166.0/24 - 2001:1458:302::/48 TW-ASGC █ AS24167 117.103.96.0/20 140.109.98.0/24 140.109.102.0/24 202.140.160.0/19 202.169.168.0/22 CH-CERN █ █ AS513 128.142.0.0/16 188.184.128.0/17 2001:1458:301::/48 AS61339 188.185.128.0/17 2001:1459:301::/48 T1-T1 traffic only 10G Renater 10G Geant – Rediris - Anella 2x8.5Gb USLHCnet - ESnet 3.5Gb USLHCnet - ESnet ES-PIC █ █ █ AS43115 193.109.172.0/24 2001:67c:1148:200::/64 2001:67c:1148:201::/64 2001:67c:1148:202::/64 NL-T1 █ █ █ AS1162 145.100.32.0/22 145.100.17.0/28 AS1104 194.171.96.128/25 10G ASnet-Surfnet 10G Asnet-Surfnet 10G Nordunet-Geant 10G JANET(UK)-Geant 10G Surfnet 10G DFN-Geant 10G GARR-Geant 5G Canarie-Surfnet 1G Canarie-Surfnet 2x8.5Gb USLHCnet - ESnet 3.5Gb USLHCnet - ESnet 2G ASnet 1G Canarie-Surfnet 10G Nordunet-Surfnet 2x1G local interconnection 10G Surfnet-DFN 10G DFN-Renater 2x1G USLHCnet-ESnet 10G GARR-SWITCH 2x1G DFN-Surfnet-USLHCnet-ESnet 10G RETN CERN KR-KISTI █ AS17579 134.75.125.0/24 10G Nordunet-Geant 2G Kreonet2 - Surfnet 10G RETN DE-KIT █ █ AS34878 192.108.45.0/24 192.108.46.0/23 2a00:1398:104::/48 RRC-KI-T1 █ █ █ AS59624 144.206.224.0/24 144.206.236.0/24 AS2875 193.93.228.0/22

5 5 Tier2 Network Connections

6 6 Continental VRFs Continental VRFs National VRFs TierXs National VRFs TierXs National VRFs TierXs LHCONE National VRFs TierXs Continental VRFs TierX sites connected to National-VRFs or Continental-VRFs National-VRFs interconnected via Continental-VRFs Continental-VRFs interconnected by trans-continental/trans- oceanic links VRF = Virtual Routing Forwarding (virtual routing instance)

7 7 7

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