ESnet
Joint Techs, Feb. 2005
William E. Johnston, ESnet Dept. Head and Senior Scientist
R. P. Singh, Federal Project Manager
Michael S. Collins, Stan Kluz,
Joseph Burrescia, and James V. Gagliardi, ESnet Leads
Gizella Kapus, Resource Manager
and the ESnet Team
Lawrence Berkeley National Laboratory

ESnet’s Mission
Support the large-scale, collaborative science of DOE’s Office of Science
Provide high reliability networking to support the operational traffic of the DOE Labs
Provide network services to other DOE facilities
Provide leading-edge network and Grid services to support collaboration
ESnet is a component of the Office of Science infrastructure critical to the success of its research programs (program funded through Office of Advanced Scientific Computing Research / MICS; managed and operated by ESnet staff at LBNL)

ESnet Physical Network – mid 2005
High-Speed Interconnection of DOE Facilities
and Major Science Collaborators

Slide 4

Drivers for the Evolution of ESnet

Evolving Quantitative Science Requirements for Networks

ESnet is Currently Transporting About 350 terabytes/mo.

A Small Number of Science Users
Account for a Significant Fraction of all ESnet Traffic

Top Flows - ESnet Host-to-Host, 2 Mo., 30 Day Averaged

ESnet Traffic
Since BaBar (SLAC high energy physics experiment) production started, the top 100 ESnet flows have consistently accounted for 30% - 50% of ESnet’s monthly total traffic
As LHC (CERN high energy physics accelerator) data starts to move, this will increase a lot (200-2000 times)
Both LHC tier 1 (primary U.S. experiment data centers) are at DOE Labs – Fermilab and Brookhaven
U.S. tier 2 (experiment data analysis) centers will be at universities – when they start pulling data from the tier 1 centers the traffic distribution will change a lot

Monitoring DOE Lab ↔ University Connectivity

ESnet Evolution
With the current architecture ESnet cannot address
the increasing reliability requirements
Labs and science experiments are insisting on network redundancy
the long-term bandwidth needs
LHC will need dedicated 10/20/30/40 Gb/s into and out of FNAL and BNL
Specific planning drivers include HEP, climate, SNS, ITER and SNAP, et al
The current core ring cannot handle the anticipated large science data flows at affordable cost
The current point-to-point tail circuits are neither reliable nor scalable to the required bandwidth

ESnet Strategy – A New Architecture
Goals derived from science needs
Fully redundant connectivity for every site
High-speed access to the core for every site (at least 20 Gb/s)
100 Gbps national bandwidth by 2008
Three part strategy
1) Metropolitan Area Network (MAN) rings to provide dual site connectivity and much higher site-to-core bandwidth
2) A Science Data Network core for
large, high-speed science data flows
multiply connecting MAN rings for protection against hub failure
a platform for provisioned, guaranteed bandwidth circuits
alternate path for production IP traffic
3) A High-reliability IP core (e.g. the current ESnet core) to address Lab operational requirements

ESnet MAN Architecture

New ESnet Strategy:
Science Data Network + IP Core + MANs

Tactics for Meeting Science Requirements – 2007/2008

 ESnet Services Supporting Science Collaboration
In addition to the high-bandwidth network connectivity for DOE Labs, ESnet provides several other services critical for collaboration
That is ESnet provides several “science services” – services that support the practice of science
Access to collaborators (“peering”)
Federated trust
identity authentication
PKI certificates
crypto tokens
Human collaboration – video, audio, and data conferencing

DOEGrids CA Usage Statistics

DOEGrids CA Usage - Virtual Organization Breakdown

ESnet Collaboration Services: Production Services

ESnet Collaboration Services: H.323 Video Conferencing
Radvision and Codian
70 ports on Radvision available at 384 kbps
40 ports on Codian at 2 Mbps plus streaming
Usage leveled, but, expect increase in early 2005 (new groups joining ESnet Collaboration)
Radvision increase to 200 ports at 384 kbps by mid-2005

Conclusions
ESnet is an infrastructure that is critical to DOE’s science mission and that serves all of DOE
ESnet is working on providing the DOE mission science networking requirements with several new initiatives and a new architecture
ESnet is very different today in both planning and business approach and in goals than in the past