Transcript GridPP 11th Collaboration Meeting, 200409

GridPP 11th Collaboration Meeting
Networking: Current Status
Robin Tasker
14 September 2004
Network Objectives
1. To bring the technology of very high rate/long distance data transport to
practical use in experimental production environments (both current and
LHC experiments); and to demonstration of one or more UK HEP
experiments being able to regularly transport data at rates in excess of
500 Mbit/s and preferably 1 Gbit/s.
2. To exploit the UKLIGHT infrastructure to utilise switched dedicated circuits
between major centres including UK Tier1 and 2, CERN and FNAL.
3. To participate in EGEE oriented network monitoring service developments
and deployment within the UK, and development of diagnostic engines for
Grid operations
4. To maintain the strategic relation which HEP holds with all relevant major
Network authorities globally.
5. To provide PPNCG support and other work as specified
High Performance Networking
The Details
• Life of a Packet: Setting the scene.
• Just What is OC-48?: Explanation of
networking terms
• TCP Theory
• TCP - Changes for High Speed Transmission
• End-User Systems - NICs and Operating
System Kernel
• Discs and Other Server Issues
• LANs & Firewalls
• Security Aspects
• Diagnostic Steps in diagnosing performance
problems
• An application Viewpoint: How do
applications view the network?
http://grid.ucl.ac.uk/nfnn.html
High Performance Networking
Workshop Summary
• Hosted by UCL
• Organised by UCL / Daresbury Laboratory
• Financial support from PPARC
Feedback
• 45 advance registrations
• 2 attendees from the US including
• Jenny Shopf from the Globus Team at
Argonne.
• Delegates from a diversity of science
application areas, e-Science projects
and support roles.
• Presenters from various UK institutions,
with European representation from CERN.
• To be repeated at NeSC in March 2005
….a great deal of interest in the general themes addresses by the workshop:
using an understanding of networking issues, common problems, diagnostics
and fixes to "bring high performance to (your) applications".
High Performance Networking
Future Activity
High Speed Cookbook: development using the information here and available from
MB-NG, DataTAG and elsewhere
UK Light
UK national R&D network infrastructure
National Interconnection
International Connectivity
Glasgow Edinburgh
UK Access
Network
Leeds
Manchester
Cambridge
Manchest
er
Leeds
UKLight
London
Lancaster + DL
Reading
London
UKLight
RAL
NetherLight
StarLight
Amsterdam
Chicargo
London
Bristol
Portsmo
uth
UK Light
Early Adoptors
1. CDF : Connecting UCL - FNAL
1 Gbit/s sustained using new UDP
protocol (UDT)
2. Radio Astronomy – eVLBI
eVLBI will connect up to 6 Telescope to JIVE in real-time for 2 years as a proof of concept
UK Light
1. UK LIGHT Town Meeting
Organiser: Pete Clarke
Within the Programme:
Technology for High Performance Networks
Speaker, Robin Tasker
Live Demo of capability UCL-FNAL
Presenter: Nicola Pezzi
2. ESLEA: Exploitation of Switched Lightpaths for eScience Applications
Delivering the Potential of Optical Networking with UK Light
“The following applications can benefit immediately from UK Light:
HEP :Particle Physics Data transfer
VLBI: Radio Astronomy Very Long Baseline Interferometry
HPC: Computational steering and Visualisation
eHealth: Oncology Remote Visualisation”
Project Kick-Off Meeting : Thursday 16 September
SuperJANET5
Overview of Architecture Requirements
Requirements to be served
Commodity
Teaching & Learning
e-Science
Network Service
R&D
Dev.
IP production network
Special purpose
bandwidth
Flexible transmission platform
Test – Test –
bed(s) bed(s)
Grid Network Monitoring
http://gridmon.dl.ac.uk/gridmon/
Current partners:
Current collaborators:
Current status:
Reported at AHM, Nottingham. Presentation attracted ~50 people, diverse interest
See: http://www.allhands.org.uk/ for details, also on GridPP Web site
Grid Network Monitoring
Activities
1. Tidying / consolidating existing infrastructure
2. Publication of performance data to Grid apps and middleware, via web/Grid services
in conjunction with GGF NM-WG. Co-chaired by Mark Leese.
http://www-didc.lbl.gov/NMWG/
Dealing with the What? Where? When? And How? Questions
Goal is prototype operation using the UK Infrastructure by Christmas, but in close
collaboration with EGEE JRA4, DANTE and UKERNA
3. Working in the GGF GHPN-RG, specifically in the
thread net-services modelling the
network as a Grid resource allowing
“advance reservation” etc.
4. Developing a network Diagnostic Tool Starting consultation with GOCs (e.g. e-Science)
and EGEE. Likely to involve collaboration (or at least liaison) with Internet2, and DANTE
via EGEE
Questions?