Adaptive SLA-Aware Algorithms for Provisioning Shared Mesh Optical Networks
Keywords:
SLA-aware re-provisioning algorithm; dynamic service level agreement negotiation; maximum path availability algorithm; time-aware maximum path availability.Abstract
The paper proposes a novel SLA-aware
mechanism to improve the performance of the networks with
huge traffic volume of high priority connection requests with
long holding time for optical shared mesh networks. The
proposed mechanism consists of two parts, a novel re
provisioning algorithm which buffers and further processes the
potentially blocked high priority connection requests, and a
new time-aware path constraint which takes advantage of
availability and holding-time as two crucial SLA connection
parameters. The proposed mechanism benefits from dynamic
service level agreement negotiation between a customer and
service providers. The simulation results show reduced
blocking probability, increased availability satisfaction rate,
decreased resource overbuild, and better resource utilization to
preserve the high priority class of traffic compared to other
SLA-aware algorithms and protection schemes in shared mesh
optical networks.
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