Publication Date:
2015-07-29
Description:
The paper deploys an adaptive provisioning algorithm to the traffic with huge volume of high-priority connection (BHC) requests with long holding time by proposing a novel service level agreement (SLA) aware mechanism over optical shared mesh networks. The contribution presented in this paper follows three main characteristics: (i) Proposing a new time-aware traffic engineering path constraint considering holding time of connections in addition to the availability; (ii) introducing a novel provisioning algorithm considering the proposed path attribute; and (iii) applying a high volume of high-priority dynamic traffic with long duration to the introduced mechanism in a new simulation environment to prove its effectiveness. The proposed mechanism benefits from dynamic SLA negotiation between a customer and service providers to buffer and further process the potentially blocked BHC requests. The simulation environment evaluates the network performance for two types of traffic: (i) traffic with different connection durations and (ii) traffic with different number of high-priority requests. 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 with long connection durations compared with other SLA-aware algorithms and protection schemes in shared mesh optical networks.
Print ISSN:
0010-4620
Electronic ISSN:
1460-2067
Topics:
Computer Science
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