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ICESS
2005
Springer

Support Industrial Hard Real-Time Traffic with Switched Ethernet

9 years 3 months ago
Support Industrial Hard Real-Time Traffic with Switched Ethernet
: This paper presents a simple and efficient switched Ethernet communication protocol for industrial hard real-time LAN applications. The network is founded with end nodes and a switch, and hard real-time communication is handled by software added between the Ethernet protocols and the TCP/IP suites. We established a virtual link of the source and destination node by applying admission control based upon the requested QoS, and manages hard real-time traffic to bypass the TCP/IP stacks. This bypassing considerably reduces the dwell time in the nodes, and increases the achievable data frame rate. After the bypassing, hard real-time traffic schedule is executed according to dynamic-priority EDF algorithm. The protocol does not need any modifications in the Ethernet hardware and coexists with TCP/IP suites, therefore, the LAN with the protocol can be connected to any existing Ethernet networks and support both real-time traffic and best-effort traffic. Compared to some conventional hard re...
Alimujiang Yiming, Toshio Eisaka
Added 27 Jun 2010
Updated 27 Jun 2010
Type Conference
Year 2005
Where ICESS
Authors Alimujiang Yiming, Toshio Eisaka
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