Abstract
This paper proposes for the first time a multi-layer Lambda
Grid, which is a platform to establish dynamically a computing environment
with a guaranteed level of throughput and bandwidth over converged IP and
optical networks according to each client reservation request. It enables
client-side visualization of a computing environment comprising converged
IP and optical networks and geographically distributed computing domains.
In addition, it dynamically reserves a packet switched path/tunnel (sub-lambda)
with the exact requested bandwidth and computer resources according to each
client reservation request. Moreover, it links the reserved path to the reserved
computers, controls the reserved sub-lambda and the relevant lambda as needed,
and routes only the reserved packet flow between the reserved computers to
the reserved sub-lambda. In terms of cost performance and bandwidth flexibility,
it can use network resources more effectively than existing Lambda Grids.
Through the multi-layer Lambda Grid, clients can execute applications in an
established computing environment as if the environment was a virtual private
computing environment for clients. To achieve the multi-layer Lambda Grid,
this paper also proposes a novel technology. This technology dynamically reserves
a sub-lambda with the exact requested bandwidth according to each client reservation
request. Moreover, it links the reserved sub-lambda to the reserved computers,
and controls the reserved sub-lambda and the relevant lambda as needed. In
addition, it routes only the reserved packet flow between reserved computers
to the reserved sub-lambda. To evaluate the feasibility of the technology,
a common computing environment with the multi-layer Lambda Grid for scientific
calculation, file transfer, and high-definition video streaming services is
presented in an actual field environment. Through this experiment, the total
feasibility of the multi-layer Lambda Grid is shown.
© 2009 IEEE
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