[en] The Deficit Round Robin (DRR) policy can be used at the outgoing ports of communication switches to schedule distinct classes of frames, providing each class with a guaranteed share of the network bandwidth. The independence between traffic classes helps to improve the incremental design process, incremental certification and scheduling flows with mixed criticalities. DRR leads however to a less efficient use of hardware resources, this is why we also envisage the combined use of DRR and Static Priority (SP). We then provide a first quantitative assessment on a realistic case-study about the use of DRR, possibly combined with SP, in avionics networking and shed some light on its range of applicability.
Disciplines :
Aerospace & aeronautics engineering
Author, co-author :
Boyer, Marc; ONERA > DTIM
Navet, Nicolas ; University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Computer Science and Communications Research Unit (CSC)
Fumey, Marc; Thales Avionics
Migge, Jörn; RealTime-at-Work (RTaW)
Havet, Lionel; RealTime-at-Work (RTaW)
Language :
English
Title :
Combining static priority and weighted round-robin like packet scheduling in AFDX for incremental certification and mixed-criticality support
Publication date :
01 July 2013
Event name :
5th European Conference for Aeronautics and Space Sciences (EUCASS)
Event place :
Munich, Germany
Event date :
from 01-07-2013 to 05-07-2013
Audience :
International
Main work title :
Proceedings of the 5th European Conference for Aeronautics and Space Sciences (EUCASS)