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

2. 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 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 q)
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

3. 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 ( /17)
1 additional prefix for SC ( /24)
Security model will be based on L3 filters (ACLs) within the L3 equipment
On BD
Monitoring via snmp (presently v2)
mrtg, nagios

4. 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
( /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

5. 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
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 (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