Challenges to address in the next future Apr 3, 2006 HEPiX Spring Meeting 2006 Enzo Valente, GARR...

Challenges to address in the next future

Apr 3, 2006 HEPiX Spring Meeting 2006

Enzo Valente, GARR and INFN

2 [EV-HEPiX Spring meeting 2006]

Agenda

Challenges:

1. E2e with other networks2. Connecting more regions


Agenda

Challenges:

1. E2e with other networks2. Connecting more regions


LHC Data Grid Hierarchy

Tier 1

Tier2 Center

Online System

CERN 700k SI95 ~1 PB Disk; Tape Robot

FNAL: 200k SI95; 600 TBIN2P3 Center INFN Center RAL Center

InstituteInstituteInstituteInstitute ~0.25TIPS

Workstations

~100-400 MBytes/sec

2.5 Gbps

100 - 1000

Mbits/sec

Tens of Petabytes by 2007-8.An Exabyte within ~5 Years

later.Physics data cache

~PByte/sec

~2.5 Gbits/sec

Tier2 CenterTier2 CenterTier2 Center~2.5 Gbps

Tier 0 +1

Tier 3

Tier 4

Tier2 Center Tier 2

Experiment

CERN/Outside Resource Ratio ~1:2Tier0/( Tier1)/( Tier2) ~1:1:1


Current LHCOPN topology


GÉANT2 Topology


Esnet Topology Spring 2006


LHCOPN – LHC Optical Private Network Every Tier1 will be connected to the Tier0 with a

direct 10Gbps “lightpath”.

Those lightpaths will be of different kinds:– single or concatenated layer 1 links (STM64, LANPHY,

WANPHY) – layer 2 VLANs

Tier1s should also provide a dedicated backup link to Tier0, – during the startup phase (Service challenges) backup will

be provided via routed paths (GN2, Esnet, Abilene, NRENs..).


Challenges Multidomain L2VPN: something router

manufacturers did not consider enough Interoperability between platforms An L2 path can be a security backdoor into

someone’s LAN– An alternative using L3VPN was studied– A trusted relationship is needed

Complex setup– VPLS could be the solution to scale to T2

numbers


LHCOPN challenges Security

– The LHCOPN will bypass the security system (firewall, IDS...) already in place at every Tier; current technologies cannot deal with the requested bandwidth

OperationsThe ENOC is Network Co-ordination Service. It is required to: – look after network issues for EGEE and LCG– receive network TTS from NRENs, analyse them and provide

relevant information to the GGUS who will then interact with the users

– monitor the e2e status of the lightpaths and trigger the appropriate corrective actions

Monitoring– Several metrics, several different devices, and several OSI stack

levels to monitor


Agenda

Challenges:1. E2e with other networks2. Connecting more regions


Networks, Grids and HEP

Next generation 10 Gbps network backbones are almost here: in the US, Europe and Japan

– First stages arriving, starting now Major transoceanic links at 2.5 - 10 Gbps since 2002-3 Getting high (reliable; Grid) application performance across

networks means:– End-to-end monitoring; a coherent approach – Getting high performance (TCP) toolkits in users’ hands– Working in concert with Internet2, Terena; the Grid projects

and the Global Grid Forum

Network improvements are especially needed in SE Europe, Latin America; SE Asia, and Africa.

Removing regional, Last mile bottlenecks and compromises in network quality are now (in all world regions) On the critical path


ICFA-SCICClosing the Digital Divide

Spread the message: “ICFA SCIC is there to help” Help identify and highlight specific needs (to Work On)

–Policy problems; Last Mile problems; etc. Encourage Joint programs Make direct contacts, arrange discussions with gov’t officials

– ICFA SCIC is prepared to participate Help Start, or Get Support for Workshops on Networks (&

Grids) – Discuss & Create opportunities – Encourage, help from funded programs

Help from Regional support & training groups (requires funding)


Global connectivity Oct 2005


A global, federated e-Infrastructure

EGEE infrastructure~ 200 sites in 39

countries~ 20 000 CPUs> 5 PB storage> 10 000 concurrent

jobs per day> 60 Virtual

Organisations

EUIndiaGrid

EUMedGrid

SEE-GRID

EELA

BalticGrid

EUChinaGridOSGNAREGI


EUMEDCONNECT


GRID initiatives around Europe

These initiatives aim to extend Grid Infrastructure for Research, which can become part of EGEE and be integrated with analogous initiatives in the Mediterranean (EUMedGrid), Balkans (SEE-Grid), North Europe (BalticGrid), Latin America (EELA) and Far-East Asia (EUChinaGrid).

Another purpose is to raise grid awareness and competences among the researchers, to make them able to profit of this new powerful tool, to foster collaboration with European and wordlwide projects and to promote scientific and industrial development in the area.


ALICE Topology October 2005

ALICEandEELA


SEEREN and SEEGrid


Planned TEIN2 Topology

November 2005

TEIN2 and

EUChinaGrid


GEANT2-ERNET and EUIndiaGrid

45-155-622 Mbps from Europe to MumbaiThen?


The UbuntuNet Alliance (S-E Africa)

Angola Botswana DRC Kenya (KENET) Lesotho Malawi Mozambique (MoRENet) Namibia Rwanda S Africa (TENET) Swaziland Tanzania Uganda (RENU) Zambia Zimbabwe …others…

General Internet access Connections to each other;

and to– Géant– Abilene (Internet2)– EUMEDCONNECT– CANet (Canadian REN)– TEIN2 (China, Japan,

Malaysia)– AARNET (Australian REN)– …others…

These countries

..and they want it all very CHEAP !!

……..all want


Interaction point with GEANT for grid issues

Technical Network Liaison Committee to address grid issues with GEANT/NRENs

Definition and establishment of Service Level Agreements for end-to-end services

Joint operation of ENOC (e-Infrastructure Network Operations Centre)

Deployment of network performance mgmt tools

Coordination of input to GGF Network Measurements Working Group


Agenda

Challenges:1. E2e with other networks2. Connecting more regions


IPv6IPv6 already available – Standard

Research networks are IPv6 compliant

Grids need an high performance network

IPv6 is the value-added component


IPv6 IPv6 can do everything you can do with

IPv4, and IPv6 do it better

Public end-to-end network based on High performance forwarding

New generation routers support native IPv6 packet forwarding through hardware ASICs

Removing NAT and Private IP address reduces network delays


IPv6Collaboration with ASIA-PACIFIC drives

to improve IPv6 in Europe

IPv6 will coexist with IPv4

GRID Middleware needs to be IPv6 compliant

Applications should be transparent

Challenges to address in the next future Apr 3, 2006 HEPiX Spring Meeting 2006 Enzo Valente, GARR...

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