当前位置:网站首页>1. Five layer network model
1. Five layer network model
2022-07-05 02:45:00 【_ Language and ink】
give an example :
1. Five layer network model
From top to bottom is : application layer 、 Transport layer 、 The network layer 、 Data link layer 、 The physical layer . When sending a message , Messages are packaged from top to bottom , Each layer will add packages on the basis of the previous layer , And when receiving messages , Unpack from bottom to top , Finally get the original information .
among :
The application layer is mainly for application scenarios in the Internet , Such as web pages 、 mail 、 File center, etc , Its representative agreements are http、smtp、pop3、ftp、DNS wait
The transport layer is mainly oriented to the transmission process , such as TCP The protocol is to ensure reliable transmission , and UDP The protocol is a connectionless broadcast , They provide different transmission modes
The network layer mainly solves the problem of how to locate the target and how to find the optimal path , such as IP wait
The function of the data link layer is to store data in a subnet ( Broadcast area ) Internal effective transmission ,MAC Address 、 Switches belong to this layer
The physical layer is to solve the problem of conversion between binary data and signals , A hub 、 Twisted pair 、 Coaxial cables are covered devices
边栏推荐
- 单项框 复选框
- Vb+access hotel service management system
- 2021 Li Hongyi machine learning (1): basic concepts
- Structure of ViewModel
- this+闭包+作用域 面试题
- [機緣參悟-38]:鬼穀子-第五飛箝篇 - 警示之一:有一種殺稱為“捧殺”
- [机缘参悟-38]:鬼谷子-第五飞箝篇 - 警示之一:有一种杀称为“捧杀”
- GFS distributed file system
- Naacl 2021 | contrastive learning sweeping text clustering task
- Design of kindergarten real-time monitoring and control system
猜你喜欢
Design and implementation of kindergarten management system
Bert fine tuning skills experiment
端口,域名,协议。
Pytest (5) - assertion
Single line function*
The perfect car for successful people: BMW X7! Superior performance, excellent comfort and safety
Azkaban概述
[download white paper] does your customer relationship management (CRM) really "manage" customers?
Apache Web page security optimization
Elk log analysis system
随机推荐
[機緣參悟-38]:鬼穀子-第五飛箝篇 - 警示之一:有一種殺稱為“捧殺”
2022/02/13
Voice chip wt2003h4 B008 single chip to realize the quick design of intelligent doorbell scheme
Marubeni Baidu applet detailed configuration tutorial, approved.
TCP security of network security foundation
2021 Li Hongyi machine learning (1): basic concepts
PHP cli getting input from user and then dumping into variable possible?
Hmi-31- [motion mode] solve the problem of picture display of music module
Erreur de type de datagramme MySQL en utilisant Druid
问题解决:AttributeError: ‘NoneType‘ object has no attribute ‘append‘
Open source SPL optimized report application coping endlessly
Application and Optimization Practice of redis in vivo push platform
Comparison of advantages and disadvantages between platform entry and independent deployment
Can you really learn 3DMAX modeling by self-study?
Openresty ngx Lua Execution stage
Medusa installation and simple use
ELFK部署
Eight days of learning C language - while loop (embedded) (single chip microcomputer)
丸子百度小程序详细配置教程,审核通过。
Pytest (4) - test case execution sequence