Abstract
Software Defined Network (SDN) modify the architecture of traditional satellite network into Software Defined Satellite Network (SDSN) by decoupling its control and data planes. However, SDSN encounter several issues, such as satellite link handover and limited space of Ternary Content Addressable Memory (TCAM), which results into increasing the number of flow rule entries and flow drop. To solve these issues this paper presents a novel three-layer architecture of SDSN and propose Intelligent Dynamic Timeout (IDT) algorithm. The algorithm predicts dynamic timeout for the eviction of unused flow entries in order to reduce the size of flow table, drop flow rate and number of table miss packets. Simulation results show that the average size of flow table, drop flow rate and number of table miss packets are reduced by 39.55%, 11.2% and 10.18% respectively when comparing the performance of IDT with different static idle timeout values.
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© 2019 ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
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Jan, S., Guo, Q., Jia, M., Khan, M.K. (2019). Intelligent Dynamic Timeout for Efficient Flow Table Management in Software Defined Satellite Network. In: Jia, M., Guo, Q., Meng, W. (eds) Wireless and Satellite Systems. WiSATS 2019. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 280. Springer, Cham. https://doi.org/10.1007/978-3-030-19153-5_6
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DOI: https://doi.org/10.1007/978-3-030-19153-5_6
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