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Research & technological development for a Data TransAtlantic Grid
Technical Corner
 

Presentations
All slides presented by DataTAG members during conferences, workshops, seminars, etc.

Publications
All scientific publications produced during the project.

Project Proposal
Detailed description of the project objectives and work plan (59 pages).

 

 

How to tune TCP for gigabit networks?
A document to help network engineers with no expertise in gigabit
networks to quickly set up routers and Linux-based end hosts in order to
optimize performances.

How to set up QoS in gigabit networks?
Hints and tips based on our experience in setting up QoS on Cisco, Juniper and Procket routers.

How to integrate GridFTP with NetLogger?
Hints and tips based on our experience in monitoring Grid applications.

 

Scalable TCP patch
Scalable TCP is a simple change to the traditional TCP congestion control algorithm (RFC 2581) which dramatically improves TCP performance in high-speed WANs. This patch was contributed by Tom Kelly.

GridDT patch
This patch proposes an alternative algorithm for congestion control in TCP. It dramatically improves TCP performance in high-speed WANs and addresses the issue of RTT bias. This patch was contributed by Sylvain Ravot.
 

HSTCP patch
High-Speed TCP is a variant proposed by Sally Floyd which makes a simple change to the traditional congestion control algorithm. Over high-speed WANs, it allows faster recovery after packet loss, thus greatly improving throughput. This patch was contributed by Gareth Fairey.
 

Jumbo TCP and SACK patch
While evaluating the performance and fairness of TCP variants in high-speed WANs, we realized that problems in the Linux kernel SACK code often hide intrinsic characteristics of these variants. This problem has been documented. The code is a patch against Linux 2.4.23. It includes web100 and implementations of HSTCP, Scalable TCP and HTCP. This patch was contributed by Douglas Leith.
 

JAMAP
Research prototype for monitoring gigabit networks with Web services.
 

 

 

DataTAG is a project sponsored by the European Commission - EU Grant IST-2001-32459