Put these three protocols together because the three protocols are on the same level, the ARP protocol is used to locate the target host's Ethernet NIC MAC address, and the IP hosts the message to be sent. The data link layer can get the data transfer information from ARP, and the data to be transmitted from IP.1.IP protocolThe IP protocol is the core of the IP protocol
Dark Horse programmer-protocol (protocol), dark horse-protocol------ Java training, Android training, iOS training, and. Net training. We look forward to communicating with you! -------
Can be used to declare a lot of methods (member variables cannot be declared)
As long as a class complies with this Protocol, it is
Mobile 10657 SMS China Unicom 10655 SMS China Telecom 10659 SMS 1-hand direct connection port.
Mobile CMPP protocol
CMPP (China Mobile Peer to Peer)
Chinese name: China Mobile Communication Internet Short Message Gateway Interface Protocol
Note: This is the enterprise specification of China Mobile Communications Corporation. The specifications describe the types and definitions of messages between d
Today I'll focus on my view on the SLIP Protocol and PPP protocol on the link layer. Today should be written on the third day, for their own insistence point a praise.Slip agreement In fact not much, it is called Serial Line Imternet protocol, translated into Chinese is a serial Internet protocol. It is a low-speed ser
Both TCP and UDP are port-based protocols. TCP has links, and UDP has no links. The TCP protocol also drops packets (network problems, the data may be gone)The application is sent to the operating system's cache, and the operating system is removed from the cache, and once the data is lost, it is completely gone. TCP is reliable because the data in its own cache is emptied after it receives a confirmation message.How UDP works I took it out of my own
Network transmission protocol and http protocol, transmission http protocolOverview: it refers to the constraints and specifications for communication between the server and the client. The data interaction between the client and the server is not disorganized and must follow (based on) certain specifications.
Common protocols:
A) HTTP and HTTPS Hypertext Transfer Proto
Commands and responses to the SMTP protocol
From the previous communication model, you can see that the SMTP protocol's session between sending SMTP and receiving SMTP is done by sending SMTP commands and receiving an answer to SMTP feedback. After the communication link is established, Send SMTP send mail command message sender, if receive SMTP at this time can receive mail then make OK answer, and then send SMTP continue to Issue RCPT command to con
Network Protocol Resolution-802.11 Protocol Summary, protocol-802.11802.11 Protocol
Version
Description
Operating frequency
802.11
Original Standard
2.4G (2 Mb/s)
802.11a
New Physical Layer supplement
5G (54 Mb/s)
802.11b
The most popular standard, Wi-Fi
2
IP Datagram
IP is the core protocol in the TCP/IP protocol family. All TCP, UDP, ICMP, and IGMP data are transmitted in the IP datagram format. The IP address only provides the best-effort transmission service. If an error occurs, the IP address will lose the data and send an ICMP message to the source. In addition, IP datagram can not be accepted in the sending order.
The IP datagram format is as follows:
Introduction
1. About the SIP protocol
Currently, there are three basic communication protocols based on VOIP: H 323, SIP, and MGCP. The following describes the comparison between the H 323 protocol and the SIP protocol.
H.323 was proposed by ITU. It attempts to regard IP phones as well-known traditional phones, but th
We have already learned about the SIP protocol, which we will always see in the Unified Communication Platform and VOIP business. So here we will give you a brief discussion on the development of the SIP protocol and the SIP protocol stack.
1. About the SIP protocol
Currentl
Session Initiation Protocol (SIP) is the biggest winner in the VoiceCon IP Phone exhibition held this week. Some vendors have announced the launch of SIP-based upgrade products or added support for this security protocol to their existing products.SIP is a single signaling and Event Notification protocol that combines voice, video, and message communication. This
for configuration based on the specific interface mode is enable. Similarly, this command is only valid for IOS software. If the CATOS software is used, use the set cdp disable command.
It is not very difficult to enable or disable the CDP protocol. It is just a simple command that can be completed in a few seconds. However, it is difficult for the security specialist to determine under what circumstances the CDP
One, the distinction between communication and communication protocol:1, the traditional meaning of "communication" mainly refers to telephone, telegraph, telex. The "message" of the communication means the messages, and the media messages are passed from one end to the other through the communication network. The content of media message is mainly voice, text, picture and video image. The composition of its network is mainly composed of electronic eq
PPP is one of the most basic protocols in the network. PPP is the main content of this article. First, let's take a look at the basic concepts of the PPP protocol. The Point-to-Point Protocol is a data link layer Protocol designed to transmit data packets between equal units. This link provides full duplex operations and transmits data packets in sequence. PPP pr
Baidu Encyclopedia Description:Hypertext Transfer Protocol (Http,hypertext Transfer Protocol) is one of the most widely used network protocols on the Internet. All WWW documents must comply with this standard. HTTP was originally designed to provide a way to publish and receive HTML pages. 1960 American Ted Nelson conceived a way to process text messages through a computer called hypertext (hypertext), whic
Transferred from: https://program-think.blogspot.com/2014/11/https-ssl-tls-1.htmlLiteracy HTTPS and SSL/TLS protocol [1]: Background knowledge, protocol requirements, design difficultiesArticle Directory★ Relevant Background knowledgeWhat are the requirements of the ★HTTPS protocol?★ The main difficulty of designing HTTPS pro
Video image transmission has the following characteristics: 1 requirements for small transmission delay, high real-time, 2 transmission flow, requiring high transmission efficiency; 3 allow transmission errors or data loss on certain programs. According to the above characteristics, it is more ideal to use UDP protocol to transmit video relative to TCP protocol.
UDP is the abbreviation of User Datagram
The concept, model, and Protocol family of TCP/IP Control Protocol/Internet Protocol are abbreviated as Transmission Control Protocol/Internet Protocol, also known as network communication Protocol, it is the most basic
Internet Protocol Summary, Internet Protocol
Today, I saw an article on network protocol on my way to work. I think it's a good job to write. Well, of course I want to keep some good stuff. I 'd like to share it with you here!
This article is reproduced in the network log of Ruan Yifeng
Author: Ruan Yifeng
Original article: http://www.ruanyifeng.com/blog/2012/05/
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