Composability is an important property to build complex applications. One important technique to achieve composability, particularly in the time domain, is multi-level hierarchical server-based design. However, composability must not only be supported among components sharing computing resources but also in their interactions. In this paper we implement hierarchical server-based traffic scheduling within the Flexible Time-Triggered Switched Ethernet (FTT-SE) protocol. The novelty in this work is the use of hierarchical sporadic servers in such setting. We report an efficient usage of the network bandwidth, short reponse times and the temporal isolation across servers.