Luca dell’Agnello INFN-CNAF INFN-CNAF networking Luca dell’Agnello INFN-CNAF

INFN-CNAF networking (1) Main network infrastructure based on optical fibres (~ 20 Km) LAN has a “classical” star topology with 2 Core Switch/Router (ER16, BD) Migration to Black Diamond 10808 with 180 GE and 12x10GE ports (it can scale up to 480 GE or 48x10GE) completed CPU racks equipped with FE/GE switch (2xGbps optical uplinks to core switch) Disk servers connected via GE to core switch (mainly fibre) Some servers concentrated with copper cables to a dedicated switch VLAN’s defined across switches (802.1q) 43 rack switches (21 switches 10Gb ready): several brands, homogeneous characteristics 48 Copper FEthernet ports (21 switches have all GEthernet ports) Support of main standards (e.g. 802.1q) 2 Gigabit up-links (optical fibers) to core switch CNAF interconnected to GARR-G backbone at 1 Gbps + 10 Gbps for SC Giga-PoP co-located New access router (Cisco 7600 with 4x10GE and 4xGE interfaces) installed

INFN-CNAF networking (2) LAN connectivity ready for 10GE technology with capacity for 10 GE link aggregation Data flows will land on disk buffer system possibly CASTOR, but also other SRM systems (StorRM and dCache) under evaluation 1 network prefix for LHCOPN (131.154.128/17) 1 additional prefix for SC (192.135.23/24) Security model will be based on L3 filters (ACLs) within the L3 equipment On BD Monitoring via snmp (presently v2) mrtg, nagios

LHC Network General Schema INFN CNAF TIER1 LHC Network General Schema CERN(LHC) GARR CNAF general purpose link Extreme Summit400 10Gb/s Service Challenge Servers LHC-NET dedicated link 1Gb/s 7600 10Gb/s 2x10Gb/s Extreme Summit400 Storage Servers Disk Servers Castor Stagers Fiber Channel Storage Devices SAN Exterme BD10808 CNAF Tier1 Network for LHC (131.154.128.0/17) 2x1Gb/s 10Gb/s Worker Nodes Extreme Summit400 2x1Gb/s 2x10Gb/s ER16 In Case of network Congestion: Uplink upgrade To 10 Gb/s

TIER1 – Network 31/03/2006 Bo GARR BD10K ER16 SW-08-02 (sc) SW-03-05 St.34(gi.3.1,gi.4.1) ER16 SSR8600 .6 .7 sw-04-03 sw-04-01 sw-04-02 3(3-4) 5(5-6) 7(7-8) LHCBSW1 9(9-10) 49(49-50) 29(29-32) SW-04-06 SW-04-07 SW-04-08 SW-04-09 SW-04-10 SW-03-06 FarmSWF1 St.2(gi.1.1,gi.2.1) St.3(gi.1.2,gi.2.2) St.4(gi.1.3,gi.2.3) St.5(gi.1.4,gi.2.4) St.6(gi.1.5,gi.2.5) St.7(gi.1.6,gi.2.6) St.9(gi.1.8,gi.2.8) St.15(gi.15,16.1,2) et.3.8 Matrix M5 Sez. Di Bologna et.6.2 Juniper R&D 0/0 sw-06-06 St.12(gi.5.4,gi.6.4) SW-03-07 SW-05-01 SW-05-02 SW-05-03 SW-05-04 SW-05-05 SW-03-08 SW-03-09 St.17(gi.15.4,gi.16.4) St.18(gi.15.5,gi.16.5) St.19(gi.15.6,gi.16.6) St.20(gi.15.7,gi.16.7) St.21(gi.15.8,gi.16.8) St.22(gi.12.6,gi.13.6) St.23(gi.12.7,gi.13.7) SW-06-01 St.16(gi.15.3,gi.16.3) St.25(gi.10.1,gi.11.1) HP Babar St.13(gi.5.5,gi.5.8,gi.6.5) SW-08-04 SW-03-10 SW-03-11 St.28(gi.10.5,gi.11.5) St.29(gi.10.6,gi.11.6) St.30(gi.5.2,gi.6.2) SW-04-04 SW-04-05 St.31(gi.10.7,gi.11.7) St.32(gi.5.6,gi.6.6) SW-06-08 SW-08-05 1/1 Welcome 131.154.1.5 Appletalk 7600 BD10K (5/2,6/1) St.36(gi.3.3,gi.4.3) SW-08-03 gi.12.4 gi.12.3 SW-AC St.35(gi.3.2,gi.4.2) St.37(gi.3.4,gi.4.4) gi.12.2 SW-08-02 (sc) SW-03-05 SW-03-04 SW-03-03 SW-03-02 Bo GARR gi.6.8 FarmSWG1 SW-08-08 SW-08-07 cat6500 St.11(gi.5.3,gi.6.3) SW-06-05 St.33 (xg.7.1,xg.14.1) FarmSWF2 FarmSWG3 St.1(gi.3.1,gi.5.1) (1:4,2:4) (3/1,3/2) 1:2 5/1 (7:4,8:4) (7:3,8:3) (7:6,8:6) (7:5,8:5) 1:5 49 (7:59,8:59) GE 0/1/0