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Outline of the talk
Goals and major directions of the project
 Software architecture, API,  SOAP/XML, some details
 How Lambda Station works - use cases
 Status and the near-term plans

The goal of the project...
Target:  last-mile problem between local computing facilities and alternate WAN paths
Strategy:  develop a network path selection service to interface production storage & computing facilities with wide-area network paths.
alternate network paths for high impact data movement
selective forwarding on a per flow basis
graceful cutover and fallback on path changes
on-demand from applications (authentication & authorization)
current implementation based on policy-based routing & including the support of DSCP marking

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For more details...
Check references at www.lambdastation.org
Papers published at CHEP04, CHEP06, Gridnet2006, CHEP07
Demonstrations at SC05, I2 FMM 2007; SC07

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Summary – Current Status
Functional system deployed at FNAL, UNL, & Caltech
Application LS awareness - dCache/SRM
Primitive protocol to request a DC via ESNet/Internet2
Successful demonstration SC05, I2 FMM, SC07
(Sort ofÉ) Production use with US CMS Tier1, Tier2s at UNL and Caltech
Flow analysis to invoke a Lambda Station ticket based on observed traffic

Plans
Improve code to make production quality
Support multi-platform clients
Enhance protocol for interaction with OSCARs/ESnet & DCN/I2
Improve distribution package
Develop management/configuring tools
Interface with monitoring system
Documentation

Large-scale data recover via DCN
One week after I2 FMM demo, UNL lost their Tier-2 data cache
50TB Data recovered by transfer FNAL Tier-1:
Largely via Internet2/ESNet Dynamic Circuit
Completed in 32 hours

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