交換以太網在獲得確定性的同時,傳輸速度也有極大的提高。千兆以太網已普及,10Gb/s的交換以太網正在開發。當以太網用于信息技術時,應用層含有HTTP(文本傳輸協議)、FTP (文件傳輸協議)、SMTP(簡單電子郵件傳送協議)和Telnet(遠程登錄)。這些基于TCP/IP的協議簇已經成為工業界事實上的網絡標準,在不同廠商的不同網絡系統互聯方面起著關鍵作用。但當以太網用于工業控制時,體現在應用層的是實時通信、用于系統組態的對象以及工程模型的應用協議
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