CERN-USA connectivity update DataTAG project

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CERN-USA connectivity updateDataTAG project

• Olivier Martin Paolo Moroni
• IT Division, CERN
• Internet2 Virtual Member Meeting, October 8

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KPNQWEST
T3 (21 Mb)
CERN - North America, today
STARTAP
T3 ATM
CERN PoP Chicago
STM-1 ATM
STM-1 POS
STM-1 ATM
TEN-155 ATM
ESnet
CERN
CIXP
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KPNQWEST
T3 (21 Mb)
CERN - North America, end 2001
STARTAP
T3 ATM
CERN PoP Chicago
STM-1 ATM
STM-1 POS research
Gb test equipment
STM-1 ATM
STM-1 POSproduction
GEANT
GBE
ESNET
CERN
CIXP
ABILENE
Gb test equipment
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Next years transatlantic link

• A call for tender is starting with the following
  objectives
• increase the transatlantic bandwidth to OC-12c
  (612Mbps)
• move the Chicago PoP to the STARLIGHT
• keep T3 commercial Internet access, but have an
  additional (backup?) access in Europe
• keep (ATM) connectivity to the STARTAP
• aim at direct peerings with North American RD
  networks at the STARLIGHT over Gigabit Ethernet
• All this is a natural extension of the existing
  setup

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Dedicated lambda for research

• What is new is that the call for tender also
  includes an option for a 2.5 Gbps transatlantic
  lambda, which will be dedicated to Grid applied
  network research
• The aim is to have a dedicated testbed where new
  things can be tried out without affecting
  production traffic
• One of our major concerns is tcp/ip performance
  over large bandwidthdelay networks
• Single vs multi stream performance
• Auto-tuning

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DataTAG planned set up(second half 2002)
DataTAGtest equipment
CERN PoP Chicago
DataTAGtest equipment
STARLIGHT
DataTAGtest equipment
UvA
INFN
PPARC
...
ESNET
DataTAGtest equipment
GEANT
ABILENE
2.5 Gb
DataGRID
PPDG
iVDGL
CERN
GriPhyN
DTF
CIXP
DataTAG test equipment
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The DataTAG Project
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DataTAG project

• Transatlantic lambda dedicated to research (no
  production traffic)
• 2.5 Gbps lambda between Chicago and Geneva
• Primarily to connect GRID initiatives in Europe
  and North America
• European partners PPARC (UK), INFN (IT),
  University of Amsterdam (NL) and CERN, as project
  coordinator
• The budget is 3.9 MEUR

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DataTAG project
NewYork
Abilene
STAR-LIGHT
ESNET
CERN
MREN
STAR-TAP
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DataTAG Workplan

• WP1 Provisioning Operations (CERN)
• Will be done in cooperation with DANTE
• Two major issues
• Cost, can we afford it?
• Routing, how can the DataTAG partners have
  transparent access to the DataTAG circuit across
  GEANT and their national network?
• WP5 Information dissemination and exploitation
  (CERN)
• WP6 Project management (CERN)

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DataTAG Workplan (cont)

• WP2 High Performance Networking (PPARC)
• High performance Transport
• tcp/ip performance over large bandwidthdelay
  links
• Alternative transport solutions
• End to end inter-domain QoS
• Advanced network resource reservation

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DataTAG Workplan (cont)

• WP3 Bulk Data Transfer Application performance
  monitoring (UvA)
• Performance validation
• End to end user performance
• Validation
• Monitoring
• Optimization
• Application performance
• Netlogger

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DataTAG Workplan (cont)

• WP4 Interoperability between Grid Domains (INFN)
• GRID resource discovery
• Access policies, authorization security
• Identify major problems
• Develop inter-Grid mechanisms able to
  interoperate with domain specific rules
• Interworking between domain specific Grid
  services
• Test Applications
• Interoperability, performance scalability issues