WOPANets: A tool for WOrst case Performance Analysis of embedded Networks

Abstract

Abstract-WOPANets (WOrst case Performance Analysis of embedded Networks) is a design aided-decision tool for embedded networks. This tool offers an ergonomic interface to the designer to describe the network and the circulating traffic and embodies a static performance evaluation technique based on the Network Calculus theory combined to optimization analysis to support early system level design exploration for embedded networks.In this paper, we describe the features set of WOPANets tool and we provide analysis in the case of a realistic embedded avionic network to show how the variation of some system's parameters can improve the system performances to support the required constraints.

A Survey on Network Calculus Tools for Network Infrastructure in Real-Time Systems

“…WOPANets is short for WOrst-case Performance Analysis of Embedded Networks [27]. WOPANets provides a GUI which is easy to use.…”

A SysML Method with Network Dimensioning

“…WoPANets (Worst-case Performance Analysis of Embedded Networks [6]) answers an important critical embedded systems design challenge: verification of temporal and functional constraints in the worst-case. Besides ensuring the proper functioning of the system in its environment this allows to guarantee strict certification requirements, particularly for avionics and space systems.…”

“…The latter define the main characteristics of the exchanged traffic flows using packet lengths, period or inter-arrival time, deadline, traffic class, jitter, burst size or source, just to mention a few. WoPANets implements a state-of-the-art Network Calculus timing analysis [6].…”

“…First, SysML context diagrams are extended to depict a network architecture with parameters such as period and jitter. Second, TTool is interfaced with WoPANets [6], a tool for network dimensioning. The method associated with TTool is revisited accordingly.…”

Interconnection Optimization for Multi-cluster Avionics Networks

“…Therefore, an upper bound of the waiting time in the RDC of [14]. The tool WoPANets [19] will be used herein to analyze this delay bound. The schedulability test is: ∀v i ∈ V :…”