tcp connections. any latency over udp is primarily due to the network itself. tcp’s various functions add additional latency to the data transmission. number of recipients tcp can only transfer data from one point to another. udp’s connectionless nature, on the other hand, allows its use ...
传输协议选择:在 UDP 和TCP 之间动态切换,平衡速度与可靠性 以全球新闻聚合应用为例,当移动用户在 4G 网络下请求新闻内容时,MCP 系统会: 根据设备屏幕尺寸(如 iPhone XS Max)裁剪图片和视频内容,仅返回适合手机显示的版本 根据网络带宽(如 4G 网络,估计带宽 10Mbps)选择中等强度的 gzip 压缩算法 根据网络丢包率...
UDP为应用程序发送和接收数据报。一个数据报是指从发送方传输到接收方的一个信息单元。UDP是不可靠的,它不能保证数据报能安全无误地到达最终目的。 (2)IP是网络层上的主要协议,同时被TCP和UDP使用。TCP和UDP的每组数据都通过端系统和每个中间路由器中的IP层在互联网中进行传输。 (3)ICMP是...
The 8-bit "Protocol" field indicates the protocol that will receive the data payload. For example, ICMP (Internet Control Message Protocol) has a Protocol number of 1, TCP (Transmission Control Protocol) has a Protocol number of 6, UDP (User Datagram Protocol) has a Protocol number of 17,...
Protocol Number Internet Control Message Protocol (ICMP) 1 Transmission Control Protocol (TCP) 6 User Datagram Protocol (UDP) 17 General Routing Encapsulation (PPTP data over GRE) 47 Authentication Header (AH) IPSec 51 Encapsulation Security Payload (ESP) IPSec ...
UDP sends data packets from one computer to another using IP. TCP vs. UDP TCP and UDP are part of the TCP/IP suite, which includes several protocols for network communications. TCP has emerged as the dominant protocol for the bulk of internet connectivity due to its ability to break large...
UDP 协议在 TCP/IP 协议栈中的位置 UDP 协议的首部格式 UDP 首部由四个字段组成,每个字段都是两个字节。 源端口(Source Port): 2 字节。发送UDP 数据报的源端口号。 目的端口(Destination Port): 2 字节。接收UDP 数据报的目的端口号。 长度(Length): 2 字节。UDP 首部和UDP 数据报携带的负载数据总长度。
Time to live (TTL), or the number of network hops a packet can make before it is discarded Which transport protocol is being used (TCP, UDP, etc.) In total there are 14 fields for information in IPv4 headers, although one of them is optional. ...
总之,TCP是缓慢和UDP是快的。由于TCP确实有创建的连接,保证担保,有序传递,但它确实比很多的UDP多。该花费的TCP在速度方面,这就是为什么UDP是更适合对速度是一个问题,例如在线视频流媒体,电视节目或在线多玩家游戏。 重量级与轻量级 因为上面提到的开销,传输控制协议被认为是重重量相比重量轻UDP协议。 UDP的简单的是...
The Internet refers to the worldwide interconnection of packet networks that all use a suite of protocols that originated in the famous ARPANET project of the 1970s. In this protocol suite, IP (Internet Protocol) is the network layer protocol, and TCP (Transmission Control Protocol) and UDP (...