FABRIC EXPReSDante Collaboration

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FABRICEXPReS-Dante Collaboration
Richard Hughes-Jones The University of
Manchester www.hep.man.ac.uk/rich/ then
Talks
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ESLEA-FABRIC4 Gbit flows over GÉANT

• Set up 4 Gigabit Lightpath Between GÉANT PoPs
• Collaboration with Dante
• GÉANT Development Network London Amsterdamand
  GÉANT Lightpath service CERN Poznan
• PCs in their PoPs with 10 Gigabit NICs
• VLBI Tests
• UDP Performance
• Throughput, jitter, packet loss, 1-way delay,
  stability
• Continuous (days) Data Flows VLBI_UDP and
• multi-Gigabit TCP performance with current
  kernels
• Experience for FPGA Ethernet packet systems
• Dante Interests
• multi-Gigabit TCP performance
• The effect of (Alcatel) buffer size on bursty TCP
  using BW limited Lightpaths

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GÉANT2 The Convergence Solution
NREN Access
Existing IP Router
Existing IP Router
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Options Using the GÉANT LightPaths

• Set up 4 Gigabit Lightpath Between GÉANT PoPs
• Collaboration with Dante
• PCs in Dante PoPs

• 10 Gigabit SDH backbone
• Alkatel 1678 MCC
• Node location
• Budapest
• Geneva
• Frankfurt
• Milan
• Paris
• Poznan
• Prague
• Vienna
• Can do traffic routingso make long rtt paths
• Ideal London Copenhagen

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EXPReS-Dante Collaboration Doc

• 1. INTRODUCTION 3
• 1.1. Executive Summary 3
• 1.2. Time Scales 4
• 1.3. The Roles of Dante, The NRNs and
  EXPReS-FABRIC 4
• 1.4. Application area 4
• 2. INTRODUCTION TO THE COLLABORATION 5
• 3. DISCUSSION OF THE TESTS 7
• 3.1. Characterise the end-to-end network with UDP
  memory-memory flows 7
• 3.1.1. Latency and Packet Jitter 7
• 3.1.2. Throughput 7
• 3.1.3. Packet loss frequency and loss pattern 7
• 3.1.4. 1-way delay estimates 8
• 3.2. end-to-end network TCP Throughput 8
• 3.3. Operate long term multi-gigabit flows 8
• 4. REQUIREMENTS
• Access to PoPs / Development network
• Provision of 4 Gigabit Lightpath from VC4s
• 5. CONCLUSIONS 11

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• Any Questions?

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• Backup Slides