2008.bib

@inproceedings{SANTOS_WFCS_2008,
  author = {Santos, R. and Marau, R. and Oliveira, A. and Pedreiras, P. and Almeida, L.},
  title = {Designing a costumized Ethernet switch for safe hard real-time communication},
  booktitle = {7th IEEE International Workshop on Factory Communication Systems (WFCS'2008) Proceedings},
  year = {2008},
  editor = {},
  volume = {},
  series = {},
  pages = {169--177},
  address = {Dresden, Germany},
  month = {May},
  organization = {},
  publisher = {},
  doi = {10.1109/WFCS.2008.4638737},
  issn = {},
  isbn = {},
  keywords = {FPGA, Ethernet, Real-Time communications, FTT, Switch},
  note = {},
  key = {},
  abstract = {The use of switched Ethernet for precise and safe real-time communication still suffers from undesired phenomena that range from the blocking caused by long non-preemptive frames to lack of protection against errors in the time domain and also couplings across virtual LANs and even priority levels via internal switch shared resources. In this paper we propose a novel switch architecture enhanced with resource reservation mechanisms, based on the Flexible Time-Triggered paradigm, which enforces strict service differentiation, blocking-free forwarding and timing errors confinement. Experimental results of a preliminary 4-port prototype based on an FPGA validate the desired properties and exhibit the potential of the enhanced Ethernet switch}
}

@inproceedings{MARAU_CRTS_2008,
  author = {Marau, R. and Figueiredo, N. and Santos, R. and Pedreiras, P. and Almeida, L. and Nolte, T.},
  title = {Server-based real-time communications on Switched Ethernet},
  booktitle = {1st Workshop on Compositional Theory and Technology for Real-Time Embedded Systems (CRTS'2008) Proceedings},
  year = {2008},
  editor = {},
  volume = {},
  series = {},
  pages = {37--44},
  address = {Barcelon, Spain},
  month = {November},
  organization = {},
  publisher = {},
  doi = {},
  issn = {},
  isbn = {},
  keywords = {Ethernet, Real-Time communications, FTT, FTT-SE, protocols},
  note = {},
  key = {},
  abstract = {Real-Time Ethernet (RTE) protocols have difficulties in the efficient handling of aperiodic message streams with arbitrary arrival patterns, while at the same time supporting the derivation of timeliness guarantees. This paper presents a server-based mechanism for switched Ethernet real-time networks, integrating concepts from the Server-CAN protocol on the  FTT-SE protocol. This approach enables an efficient implementation of arbitrary server schedulers as well as their hierarchical composition. Moreover, the presented approach is very suitable for open systems as servers can easily be added, changed and removed during runtime. The paper includes a case study based on a distributed control application. The obtained results illustrate the correct operation of the server-based protocol, showing the capability of the framework in providing strict timeliness guarantees to the real-time traffic in spite of interference with arbitrary arrival patterns and load variations}
}

@inproceedings{MARAU_ECRTS_2008,
  author = {Marau, R. and Almeida, L. and Pedreiras, P. and Nolte, T.},
  title = {Towards Server-based Switched Ethernet for Real-Time Communications},
  booktitle = {20th Conference on Real-Time Systems (ECRTS'2008) WiP Session Proceedings},
  year = {2008},
  editor = {},
  volume = {},
  series = {},
  pages = {60--63},
  address = {Prague, Czech Republic},
  month = {July},
  organization = {},
  publisher = {},
  doi = {},
  issn = {},
  isbn = {},
  keywords = {Ethernet, FTT, FTT-SE, Real-Time communications, Server-CAN, protocols},
  note = {},
  key = {},
  abstract = {This paper presents work-in-progress on server-based Switched Ethernet (SE) for real-time communications. It joins the recent FTT-SE protocol with concepts from the Server-CAN protocol to allow handling aperiodic message streams with arbitrary arrival patterns while supporting the derivation of timeliness guarantees. The presented approach enables an efficient implementation of arbitrary server schedulers in the switch, and a number of server schedulers are to be investigated with respect to SE performance. Moreover, the presented approach is very suitable for open systems as servers can easily be added, changed and removed during runtime of the switch. Currently, several server-based policies are being implemented, which will allow carrying out comparisons among different policies as well as verifying the capability of the protocol for on-line integrated management of the servers}
}