1. CERN-USA connectivity update DataTAG project
Olivier Martin & Paolo Moroni
IT Division, CERN
Internet2 Virtual Member Meeting, October 8
9/18/2018
CERN Update & DataTAG Project

2. CERN Update & DataTAG Project
KPNQWEST
T3 (21 Mb)
CERN - North America, today
STARTAP
T3 ATM
CERN PoP Chicago
STM-1 ATM
STM-1 POS
STM-1 ATM
TEN ATM
ESnet
CERN
CIXP
9/18/2018
CERN Update & DataTAG Project

3. CERN Update & DataTAG Project
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 POS production
GEANT
GBE
ESNET
CERN
CIXP
ABILENE
Gb test
equipment
9/18/2018
CERN Update & DataTAG Project

4. Next year’s 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 R&D networks at the STARLIGHT over Gigabit Ethernet
All this is a natural extension of the existing setup
9/18/2018
CERN Update & DataTAG Project

5. 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 bandwidth*delay networks
Single vs multi stream performance
Auto-tuning
9/18/2018
CERN Update & DataTAG Project

6. DataTAG planned set up (second half 2002)
DataTAG test equipment
CERN PoP Chicago
DataTAG test equipment
DataTAG test equipment
STARLIGHT
UvA
INFN
PPARC
…...
DataTAG test equipment
ESNET
GEANT
ABILENE
2.5 Gb
DataGRID
PPDG
iVDGL
CERN
CIXP
DTF
GriPhyN
DataTAG test equipment
9/18/2018
CERN Update & DataTAG Project

7. The DataTAG Project

8. CERN Update & 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
9/18/2018
CERN Update & DataTAG Project

9. CERN Update & DataTAG Project
NewYork
Abilene UK
SuperJANET4 IT
GARR-B
STAR-LIGHT
ESNET
GEANT
CERN
MREN NL
SURFnet
STAR-TAP
9/18/2018
CERN Update & DataTAG Project

10. CERN Update & DataTAG Project
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)
9/18/2018
CERN Update & DataTAG Project

11. DataTAG Workplan (cont)
WP2: High Performance Networking (PPARC)
High performance Transport
tcp/ip performance over large bandwidth*delay links
Alternative transport solutions
End to end inter-domain QoS
Advanced network resource reservation
9/18/2018
CERN Update & DataTAG Project

12. DataTAG Workplan (cont)
WP3: Bulk Data Transfer & Application performance monitoring (UvA)
Performance validation
End to end user performance
Validation
Monitoring
Optimization
Application performance
Netlogger
9/18/2018
CERN Update & DataTAG Project

13. 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
9/18/2018
CERN Update & DataTAG Project