利用已構(gòu)建的實驗平臺，進行了一系列的實際實驗以研究IEEE802.1P 對交換式工業(yè)
以太網(wǎng)實時性的影響，并對比之前所取得的理論研究成果，發(fā)現(xiàn)理論分析不足之處以進行完善。通過實驗展示和分析了工業(yè)以太網(wǎng)應(yīng)用IEEE 802.1P 技術(shù)可能出現(xiàn)的問題，這些主要是不同優(yōu)先級別報文之間存在干擾。所進行的實驗對用于過程控制工業(yè)以太網(wǎng)實時性的理論分析和實際改進有著具體的指導(dǎo)意義。
關(guān)鍵詞：工業(yè)以太網(wǎng)；實時性；IEEE802.1P

Abstract: By means of test bed designed previously, several practical experiments are carried out to study IEEE 802.1P for real-time behavior of switched industrial Ethernet. Compare the
experimental results with theoretical analysis, find their deficiency and perfect them. The
experiments have shown the potential problems due to interference between priority levels. The experiments would direct the theoretical analysis and practical improvement in industrial Ethernet for process control
Key words: Industrial Ethernet; Real-time behavior; IEEE 802.1P