Implementing server-based communication within Ethernet switches

• Autor(a) principal: R. Santos
• Data de Publicação: 2009
• Outros Autores: A. Vieira, R. Marau, P. Pedreiras, A. Oliveira, Luis Almeida
• Tipo de documento: Livro
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: https://hdl.handle.net/10216/70040
• topic: Tecnologia de redes, Engenharia electrotécnica, electrónica e informática; Network tecnology, Electrical engineering, Electronic engineering, Information engineering

Real-Time Ethernet (RTE) protocols have difficulties in attaining a bandwidth efficient support of aperiodic message streams in scenarios where strict timeliness requirements have to be met. To overcome such difficulties, the authors proposed recently the Server-SE protocol that deploys server-based traffic scheduling over switched Ethernet using the FTT-SE protocol and COTS switches as platform. This paper extends such work by proposing a new platform, namely the FTT-Enabled Switch recently developed by the authors. The resulting framework provides a high level of determinism, robustness and flexibility, being particularly suited to open systems as servers can easily be added, composed, adapted and removed at run-time. The framework is validated with a prototype implementation. Experimental results show the effectiveness of the framework in guaranteeing a correct temporal behavior even in the presence of traffic with arbitrary arrival patterns and load variations.