2. IN2P3 Computing Center, Lyon, France Tier1 for Atlas, ALICE, CMS, LHCb Jerome.Bernier@in2p3.fr

3. @jb April 2006 2 RENATER 4 French NREN

4. @jb April 2006 3 RENATER Internal Services CCIN2P3 LAN « classical » 1Gbps 10Gbps 100Mbps 2x 10Gbps External Services CISCO 6500

5. @jb April 2006 4 RENATER CCIN2P3 LAN « LHC OPN transfers » Internal Services External Services

6. @jb April 2006 5 IN2P3 T1 Transfers with dCache to our HPSS HSM with specialized machines with a buffer of ~4To of local disks on the specialized LHCOPN network 193.48.99.0/24 Still to decide for a backup solution: another lambda to CERN ? backup through a lambda to another Tier1 ? perhaps depends on T1-T1 traffics: use generalist backbone or extend lambdas connections ?