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LCG France Network Network 11/2010 Centre de Calcul de l'IN2P3/CNRS.

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Presentation on theme: "LCG France Network Network 11/2010 Centre de Calcul de l'IN2P3/CNRS."— Presentation transcript:

1 LCG France Network jerome.bernier@in2p3.fr Network 11/2010 Centre de Calcul de l'IN2P3/CNRS

2 @jb LCG France Network 11/2010 RENATER

3 @jb LCG France Network 11/2010 RENATER Dark Fibers

4 @jb LCG France Network 11/2010 RENATER

5 @jb LCG France Network 11/2010 RENATER Région Parisienne

6 @jb LCG France Network 11/2010 GEANT

7 @jb LCG France Network 11/2010 LCG France

8 @jb LCG France Network 11/2010 LCG France http://netstat.in2p3.fr

9 @jb LCG France Network 11/2010 LCG France

10 @jb LCG France Network 11/2010 Tier2 GRIF Grille de Recherche Ile de France NR OrsayNR Jussieu 10Gbps RAP RHD Saclay LLR 10Gbps NR Lyon VLAN APC IPNO CCIN2P3 LAL IRFU CEA LPNHE

11 @jb LCG France Network 11/2010 LHCOPN

12 @jb LCG France Network 11/2010 Tier2 GRIF CCIN2P3 infrastructure physique Secours à travers Tier1 KIT Karlsruhe Secours à travers Tier1 KIT Karlsruhe Strasbourg Paris 10Gb/s autres Tier1/2 Tier2 Français 10Gb/s Lyon

13 @jb LCG France Network 11/2010 LHC T2s connectivity working group Collecting technical proposals addressing: - Layer1-2 connectivity - Layer3 connectivity, addressing and routing - Operations - Obligations/requirements for a Tier1/2/3 to join - Security aspects - Costs and funding then a workshop with all interested T2s ● lhcopn-T2s-connectivity-wg ● https://twiki.cern.ch/twiki/bin/view/LHCOPN/T2sConn https://twiki.cern.ch/twiki/bin/view/LHCOPN/T2sConn

14 @jb LCG France Network 11/2010 Tier2 traffic T2 traffic from 1 to 10Gb/s ● Local connectivity to RENATER ● National traffic ● International / transatlantic traffic ● Generic IP network / special purpose network ? ● The most likely outcome is going to be an architecture of exchange points that T2's can connect to, to improve their bandwidth to generally other T2's and T1's.

15 @jb LCG France Network 11/2010 Distributed IXP T1/2 Access switch in location A Access switch in location B Access switch in location C T1/2 Tier0T1/2 Access links: bandwidth dedicate to the site. Interconnection links: shared bandwidth T1/2 - A few strategic access locations interconnected with fat pipes. - Provides connectivity among all members - Flexible access: everyone can set they own preferred routing policy with anyone else, with the bandwidth they need/can_afford.

16 @jb LCG France Network 11/2010 Access switch A Shared Infrastructure Hardware: Layer2 switches with 1/10(/40/100)Gbps Ethernet interfaces in each location Connectivity: multiple aggregated 10G Ethernet links (40G and 100G Eth when available) Redundancy: A redundant topology should be envisaged (ring, for example) Access switch B Access switch C

17 @jb LCG France Network 11/2010 Access link - Each member will have to organize and pay for their own access link - Bandwidth of the access links may be increased as necessary - Any kind of link provider may be used T1/2 VPLS/VPN service provider Access switch T1/2 Tier1/2 T1/2 E2E link provider GLIF GOLE R&E darkfibre network T1/2

18 @jb LCG France Network 11/2010 Layer 3 connectivity - Every member gets an IP address from a common subnet (v4 and v6) - Every member is responsible to establish the routing with any other member (BGP is required). - A route server may be envisaged T1 192.16.10.1/24 Shared VLAN T2 192.16.10.2/24 Tier3 192.16.10.5/24 T2 192.16.10.45/24

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