US-LHC End-to-End Networking Meeting

Wednesday 25 Oct 2006, 08:00 → 19:05 US/Central

Wilson Hall 8X "Hornet's Nest" (Fermilab)

Several network research projects funded by DOE MICS and NSF will provide and
monitor dynamic lightpaths in various ways. The goal of the meeting will be to
examine the networking needs implied by the US LHC experiments' computing
models and examine whether and how these projects meet those needs. Participation
by USCMS and USATLAS will sharpen the focus.

VRVS Reservation at Boat Virtual Room of Transport/Universe community.
VRVS will start at 07:30 the 25 October 2006, and
finish at 18:58 the 25 October 2006
Time Zone: GMT -5 summer (Chicago/CST) Please send your slides to Dantong Yu (dtyu@bnl.gov) and Matt Crawford (crawdad@fnal.gov).

08:00 → 08:30 Check-in

Coffee and other refreshments available.

08:30 → 08:45 Welcome to Fermilab

Speaker: Don Petravick (Fermilab)

08:45 → 09:15 Direction setting

Speaker: Dr Thomas Ndousse (Office of Science)

09:15 → 10:00 Summary of US LHCnet Working Group meeting

Speakers: Harvey Newman (Caltech), Ian Fisk (Fermilab), Jim Shank

Slides USLHCNetWGMilestones102406_hn102506.ppt

10:00 → 10:10 US Tier 1-Tier 2 Backbone Support: Internet2

Speaker: Mr Rich Carlson

Slides i2net-lhc-carlsonl-25-oct-2006_.ppt

10:10 → 10:20 US Tier 1-Tier 2 Backbone Support: ESnet

Speaker: Mr Chin Guok

10:20 → 10:30 US Tier 1 and Tier 2 LAN Issues

Speaker: Dr Shawn Mckee

Slides Tier1_Tier2_LAN_Issues.ppt

10:30 → 10:40 Cross-Network Interoperability Issues

Domain to Domain deterministic paths. Interoperation among multiple networks, including with dynamic provision of lightpaths,
Also, architechture frameworks and proto-type infrastructures.

Speaker: Dr Joe Mambretti

Slides MAMBRETTIl_LHC_Networking_WS_PDF.pdf

10:40 → 10:50 break

10:50 → 11:10 TeraPaths and TeraPaths Monitoring (DWMI)

Speakers: Dr Dantong Yu (BNL), Dr Dimitrios Katramatos (BNL), Dr Les Cottrell (SLAC)

Slides dwmi-fnal-oct06.ppt TeraPaths_2006.ppt

11:10 → 11:25 Lambda Station Project

Speaker: Matt Crawford (Fermilab)

Slides Lambda_Station_USLHC_e2e.pdf

11:25 → 11:40 perfSONAR

Functions and deployment status.

Speaker: Joe Metzger (ESnet)

Slides 20061025-PerfSONAR.ppt

11:40 → 11:50 UltraLight

Speaker: Dr Rick Cavanaugh (University of Florida)

12:30 → 13:30 Lunch break

13:30 → 15:00 Checkpoint Discussion: T1-T2 networking within the US

We will use this interval to take note of any gaps or problem areas identified in Tier1-Tier2 networking, concentrating on issues within the US. Campus to campus QOS paths, e2e testing, fault diagnosis, measurements. Interoperation among several network provisioning frameworks and infrastructures. end-to-end network diagnosis and performance monitoring (Les Cottrell) that will be very critical for data transfers.

Discussion - Matt Crawford and Shawn McKee, scribe: Les Cottrell Problem Topics: * Path allocation: o Contributors: OSCARS, Terapaths, BRUW, USN, UL,, VINCI, DRAGON o Users: Lambda station, MonALISA * Monitoring: Diagnosis, pS, MonALISA o Must include network, hosts & application * Problem space: intra-US, extra US, application integration, scheduling deadline and time share * Network resources to pillage & exploit: USLHC, Abilene, ESnet/SDN, GEANT (USN UL GLIF) * Tests, goals. milestones: o max T0->T1 with competing traffic, does it work stably, does it perform, o T1<=>T2 exercises soar with the winners, individually and all together o Need goals of when these demonstration tasks (Exemplars) are completed. Agreed to by April 07, referred to as Network Circuit Challenge (NCC). N.b. ideally this requires the end sites to be at 10Gbps. Not all ATLAS T2 are at 10Gbps so will target rates of 1Gbps, 3Gbps and 8Gbps. The main emphasis is for T2 (not T0->T1). Need to identify people to lead this effort, by default it is Shawn McKee & Matt Crawford. * Craig proposed that Shawn Mckee (USATLAS) and Matt Crawford (USCMS) will assemble a plan, setup task, scope and date for Tier 1<=> Tiet 2 network circuit challenges. Matt will collect the project inventory from Brian Tierney.

15:00 → 15:20 OSCARS and BRUW

Speakers: Mr Chin Guok, Mr Rich Carlson

Slides BRU-SCI.ppt oscars-uslhc-end-to-end-20061025.ppt

15:20 → 15:30 UltraScience Network: Network Research Experiments

UltraScience Net (USN) architecure and deployment will be briefly described. Then recent network research projects supported by USN will be described including L2-L3 VLAN peering, jitter measurements and analysis of GigE VLANS on OC21, Infiniband throughput over OC192 connections, and connectivity to Cray X1.

Speaker: Dr Nageswara Rao (ORNL)

Slides LHC2006_USN_update.pdf

15:30 → 15:45 break

15:45 → 15:55 Provide insight into Efficient GridFtp tools

New Development Effort in GridFtp for High Performance, and Portability.

Speaker: Raj Kettimuthu (ANL)

Slides e2e06.ppt

15:55 → 16:05 Linux Kernel Issues in End Host systems

Some preliminary work was done in FNAL by Wenji Wu and Matt Crawford

Speaker: Dr Wenji Wu

Slides Linux_Kernel_Issues_in_End_Host_Systems.pdf

16:05 → 16:15 Fast Data Transfer (FTD) and its integration with end to end path allocation

Speaker: Mr Iosif LEGRAND

16:15 → 16:25 dCache data storage systems and Network Integration

Speaker: Matt Crawford (Fermilab)

Slides dCache-Network.pdf

16:25 → 16:55 Checkpoint Discussion: Host, protocol, and application issues

We will use this interval to take note of any concerns, needs, or opportunities in the OS, transfer protocols, and applications.

16:55 → 18:25 Closing Discussion

Understand the needed research to integrate and exploit the "new architecture"
of ESnet & I2 and US LHCnet which provide circuit-like primitives for trasport of
scientific data.

How can network researchers help the end-to-end system performance?

What is the plan to test and deploy the network research accomplishments into
the corresponding network domain?

Where are the optimal interface points between dynamically provisioned
network paths and data storage and management?