UCL
 

Personal Miscellaneous TCP/IP GRID Quality of Service Multi-Cast

 

lan wan

 

GridPP Network Assessment

This site will outline the sets and findings of specific network measurements between GridPP sites. Details of techniques and goals are here.

In order to assess network performance of UK sites (plus CERN and SLAC), i have developed a tool called GridNM that allows easy addition of tools and hosts for mesh measurements. It is based on an XML framework for describing the tools (commands etc) and the hosts.

It consists of a two tierred system design with the bottom tier collecting and logging results (based in perl) and an upper tier that allows a java web service based SOAP request for data.

A final presentation layer allows the display and analysis of the gathered information. (written in java).

Description of GridNM can be found here.

 

 

List of Sites

Site State
Glasgow Not operational
Manchester Not operational
Liverpool Not operational
Oxford Not operational
Imperial College (London) Not operational
Bristol Operational


Transfer Mesh

Table shows most recent transfer information RE maximum bandwidth. Source is Row, Destination is Column.

  Bris Glas IC Liv Man Ox
Bris            
Glas            
IC            
Liv            
Man            
Ox            


Misc

Some old transfer stuff here.

 

 

 

Wed, 23 July, 2003 13:07 Previous PageNext Page
 
 
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© 2001-2003, Yee-Ting Li, email: ytl@hep.ucl.ac.uk, Tel: +44 (0) 20 7679 1376, Fax: +44 (0) 20 7679 7145
Room D14, High Energy Particle Physics, Dept. of Physics & Astronomy, UCL, Gower St, London, WC1E 6BT