网络层协议 wǎngluòcéngxiéyì network layer protocol Origin Definitions Defs Strokes Stroke Words Sentences Sents 网络层 網絡層 wǎngluòcéng network layer the third level of the Open Systems Interconnection (OSI) model, responsible for data routing协议 協議 xiéyì noun agreement; pact a joint decision, consensus, or formal document reached through negotiation