Multiprotocol switches expand on the capabilities of their multilayer redecessors,which switch data at Layer 2 and route one protocol at Layer 3.是什么意思_Multiprotocol switches expand on the capabilities of their multilayer redecessors,which switch data at Layer 2 and route one protocol at Layer 3.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句