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Project Number


Project Title

GENI Experiment Control Using Gush
a.k.a. GushProto, GUSH

Technical Contacts

PI Jeannie Albrecht / / +1 413 597 4251
Amin Vahdat / / +1 858 534 4614

Gush Architecture Picture (from

Participating Organizations

Williams College, Williamstown, MA
UC San Diego, San Diego, CA


The scope of work on this project is to design and implement a prototype to build Gush (the GENI User Shell), a robust experiment control and management framework for GENI. The final product of this work is expected to be a fully functional framework that supports experiment control through three user interfaces, including a graphical user interface (GUI), command line interface, and a programmatic interface.

This work will include design of an API in Gush for interacting with GENI Clearinghouses. Gush will integrate with GENI Clearinghouse prototypes provided by the control framework developers to test the Gush API and the use of slice interaction functions. Initial work will be with the PlanetLab control framework using XML-RPC communication with the PlanetLab Central Database (PLC). Development will focus on getting the Gush command line and programmatic interfaces working before moving on to the graphical interface, with an emphasis on detailed error reporting that will simplify debugging.

Gush Architecture Picture (from


MilestoneDate(GushProto: User Study)? See ticket #5
MilestoneDate(GushProto: v0.1 Implementation)? See ticket #9
MilestoneDate(GushProto: User Documentation and Web Site)?
MilestoneDate(GushProto: GEC Demo)? Click here for description of the demo.

Project Technical Documents

Gush User Study 1

Website maintained by Williams College: Gush


To check out Gush code out of SVN use "svn co --username guest". Please contact jeannie AT cs DOT williams DOT edu for the password.

Quarterly Status Reports

December 2008 Report
April 2009 Report
June 2009 Report

Spiral 1 Connectivity

PlanetLab control framework.

For Spiral 1, Gush will be deployed to GENI PlanetLab nodes. Experimenters will download the Gush controller to their workstation from the Gush project website. Gush automatically downloads the client software to the PlanetLab machines in use. There is no GENI requirement for UCSD/Williams connectivity.

IP Connectivity: IP connectivity required from GUSH controller (typically user desktops) to PlanetLab machines in slice. IP connectivity required between controller and PlanetLab clearinghouse. IP connectivity required between PlanetLab nodes in experimenter's slice and Gush code repository to download so Gush software if machines don't already have Gush client installed.

Layer 2 Connectivity: Gush does not require any layer 2 virtual ethernets.

GPO Liason System Engineer

Vic Thomas /

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