●●●●● ●●●● 分层 ●●0 ●●● ●●●● ●从概念上讲,我们可以把网络按下图进 行分层 Applications (Web Browsers, etc) Networking TCP/IP, etc Hardware (Ethernet, Wireless, Fiber14 分层 ⚫ 从概念上讲，我们可以把网络按下图进 行分层 Applications (Web Browsers, etc) Networking (TCP/IP, etc) Hardware (Ethernet, Wireless, Fiber)