Wifi芯片是否包含tcp⼀ip协议栈，哪些比较常用
推荐回答（1个）
TCP IP协议集内容：
包括TCP､IP､UDP､ICMP､RIP､TELNETFTP､SMTP､ARP､TFTP等许多协议,这些协议一起称为TCP IP协议；
以下对协议族中一些常用协议英文名:
TCP(Transmission Control Protocol)传输控制协议
(Internet Protocol)网际协议
UDP(User Datagram Protocol)用户数据报协议
ICMP(Internet Control Message Protocol)互联网控制信息协议
SMTP(Simple Mail Transfer Protocol)简单邮件传输协议
SNMP(Simple Network manage Protocol)简单网络管理协议
FTP(File Transfer Protocol)文件传输协议
ARP(Address Resolation Protocol)地址解析协议
从协议分层模型方面来讲,TCP IP协议由四个层次组成:网络接口层､网络层､传输层､应用层：
其中网络接口层，这是TCP IP协议软件的最低层,负责接收IP数据报并通过网络发送之,或者从网络上接收物理帧,抽出IP数据报,交给IP层；
网络层，负责相邻计算机之间的通信，其功能包括三方面：一､处理来自传输层的分组发送请求,收到请求后,将分组装入IP数据报,填充报头,选择去往信宿机的路径,然后将数据报发往适当的网络接口｡二､处理输入数据报:首先检查其合法性,然后进行寻径--假如该数据报已到达信宿机,则去掉报头,将剩下部分交给适当的传输协议;假如该数据报尚未到达信宿,则转发该数据报｡三､处理路径､流控､拥塞等问题｡
传输层，提供应用程序间的通信｡其功能包括:一､格式化信息流;二､提供可靠传输｡为实现后者,传输层协议规定接收端必须发回确认,并且假如分组丢失,必须重新发送｡
应用层，向用户提供一组常用的应用程序,比如电子邮件､文件传输访问､远程登录等｡远程登录TELNET使用TELNET协议提供在网络其它主机上注册的接口｡ TELNET会话提供了基于字符的虚拟终端｡文件传输访问FTP使用FTP协议来提供网络内机器间的文件拷贝功能｡
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