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For data intensive Grid applications, such as shown at iGrid2002, users may require short-lived guaranteed high bandwidth connections. These types of connections, providing a certain Quality of Service (QoS) will need to be authorized and provisioned, often through multiple administrative domains. We present a case study of a Bandwidth on Demand service(More)
We realize an open, programmable paradigm for application-driven network control by way of a novel network plane — the “service plane” — layered above legacy networks. The service plane bridges domains, establishes trust, and exposes control to credited users/applications while preventing unauthorized access and resource theft. The Authentication,(More)
This paper presents ongoing research and current results on the development of flexible access control infrastructures for complex resource provisioning in grid-based collaborative applications and on-demand network services provisioning. We investigate the use of workflow concepts for the required orchestration of multiple grid resources and/or services(More)
October 11, 2010 Abstract Dedicated network circuits (lightpaths) are an effective way to provide enhanced quality of service to demanding applications. Lightpaths are popular in the scientific community, where applications transport large quantities of data around the world for distributed visualisations or computations. Many research networks support this(More)
With the increasing demand for dynamic network connections between multiple research networks, a number of issues on multi-layer hybrid networks need to be addressed, such as network representation, path finding, and path provisioning. This paper focuses on solving the multi-layer path finding problem by a declarative approach. The declarative approach uses(More)
Cloud computing gives users much freedom on where they host their computation and storage. However the CO2 emission of a job depends on the location and the energy efficiency of the data centers where it is run. We developed a decision framework that determines to move computation with accompanying data from a local to a greener remote data center for lower(More)
The recent emergence of advanced network infrastructures for e-Science enables tuning of network performance at the application level. The Network Service Interface (NSI) has been created as a result of collaborative development of network and application engineers primarily associated with the Research and Education (R&E) community. The NSI allows(More)
This paper presents ongoing research and current results on developing flexible access control infrastructure for complex resource provisioning in Gridbased collaborative applications and on-demand network services provisioning. In both cases the workflow can provide required orchestration of multiple Grid or Web services representing individual(More)
Cloud environments can provide virtualized, elastic, controllable and high quality on-demand services for supporting complex distributed applications. However, the engineering methods and software tools used for developing, deploying and executing classical time critical applications do not, as yet, account for the programmability and controllability(More)