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Élimination de l'impact de la résilience réseau dans un transport de flux vidéo par implémentation dans une architecture SDN contrainte par l'existant

Abstract : In Content Delivery Networks (CDN), Quality of Experience (QoE) provides a major performance indicator that is continuity of service. As a consequence, network robustness has become a major concern for network operators. TDF operates a traditional transport network for real-time video and audio transport through multicast. Any failure on the network causes a recovery time implying loss and an impact in the content viewing. This study's goal is to define an architecture preventing impact on the content during network healing time. This architecture computes and deploys redundant disjoint multicast trees on the transport network. As restitution equipments are able to exploit path diversity, packet loss consequences can be avoided. This work's main part is the development and evaluation of different algorithm for the computation of distribution trees, as part of the routing element of the architecture. Protocol specification and deployment process are also considered. Implementation is based on a Software Defined Networking (SDN) architecture in which a central controller uses its knowledge of the performance and bandwidth allocation to compute and maintain pairs of multicast trees.
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https://hal.univ-lorraine.fr/tel-02499901
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Constant Colombo. Élimination de l'impact de la résilience réseau dans un transport de flux vidéo par implémentation dans une architecture SDN contrainte par l'existant. Réseaux et télécommunications [cs.NI]. Université de Lorraine, 2019. Français. ⟨NNT : 2019LORR0232⟩. ⟨tel-02499901⟩

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