czl_Lynn的博客

网络由下往上分为　　物理层、数据链路层、网络层、传输层、会话层、表示层和应用层。　　通过初步的了解，我知道IP协议对应于网络层，TCP协议对应于传输层，而HTTP协议对应于应用层，　　三者从本质上来说没有可比性，　　socket则是对TCP/IP协议的封装和应用(程序员层面上)。　　也可以说，TPC/IP协议是传输层协议，主要解决数据如何在网络中传输，

为了确定子网,分开主机和路由器的每个接口,从而产生了几个分离的网络岛,接口端连接了这些独立的网络的端点。这些独立的网络中的每个都叫做一个子网(subnet)。你一定对IP地址有所了解吧？我们知道在INTERNET中广泛使用的TCP/IP协议就是利用IP地址来区别不同的主机的。如果你曾经进行过TCP/IP协议设置，那么你一定会遇到子网掩码(Subnet mask)这一名词，那么你知道什么

#1 ----Inter-Process Communications (Pipes, Sockets, Signals, etc.)Piping is a process where the output of one process is made the input of another. We have seen examples of this from the

1) Hashmap:Simple example: https://beginnersbook.com/2013/12/hashmap-in-java-with-example/Best way to iterate items: https://stackoverflow.com/questions/1066589/iterate-through-a-hashmapConvert

1. Issue of TCP port numbers in BGPIt is because BGP uses different source and destination ports other than 179 depending on who originates the session. BGP is essentially a standard TCP based p

1. Set up steps I didWhat you will need :Hardware: A raspberry Pi computer, a SD card, a monitor with a cable (and, if needed, an HDMI adaptor) or a touchscreen (Raspberry 7’’ touchscreen display)...