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
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
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:
time the vro must pass the KEY back and forth to authenticate itself and try to pass OSPF messages, the HELLO information package of the router is transmitted between routers every 10 seconds by default, which gives attackers a great opportunity to eavesdrop on the KEY, if attackers can snoop the network and obtain the KEY, the OSPF route information package may be forged. More seriously, these forged OSPF route information packets will be redirected blindly. Of course, these attacks are rare,
CCNA Training Course (3) -- Vlan VTP relay single-arm route generation Tree Protocol
This is the third day of the CCNA training course. There are many knowledge points on this day, and the experiment content is gradually becoming more complicated.VLAN
A vswitch separates the conflict domains and the broadcast domains. A vro separates the conflict domains and the broadcast domains. In a pure exchange network, how do I divide broadcast domains? The answ
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
Mobile device Management (MDM) and OMA (OTA) DM Protocol Wizard (ii)--WAP Protocol (1)On the "Mobile Device Management (MDM) and OMA (OTA) DM Protocol Wizard (i)"16. Can I access WiMAX devices directly from the Web server?See "WAP Protocol (1)--6th WAP Network Deployment" in this article17. Can I use TCP instead of WDP
First, the introduction
The Protocol deals with properties and methods that act like abstract classes in Java, and the types in swift implement agreed properties and methods by complying with the protocol. The protocols in Swift are declared using the Protocol keyword. The protocol in Swift also has a very interesting
Redis Communication Protocol (protocol)
This document is translated from: Http://redis.io/topics/protocol.
The Redis protocol compromises between the following three goals: ease of implementation can be efficiently analyzed by computer (parse) can easily be read by humans to understand the network layer
The client and
The web point-to-point program transmits data, is the HTTP protocol or TCP/IP protocol TCP/IP protocol and HTTP protocol what is the difference, two Web program point-to-point transmission data, you will choose that one. Today on the Internet to see such an interview topic, triggered a series of search data, review
TPC/IP Protocol is a Transport layer protocol, which mainly solves how data is transmitted in the network, and HTTP is the application layer protocol, which mainly solves how to wrap the data. regarding the relationship between TCP/IP and HTTP protocol, the network has a relatively easy to understand: "When we transmit
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
Analysis of TCP/IP layer-4 protocol system and tcpip layer-4 Protocol
TCP/IP layer-4 protocol system
1) The link layer, also known as the data link layer or network interface layer, usually includes the device driver in the operating system and the network interface card corresponding to the computer. They work together with the physical interface details of the
SIP (Session Initiation Protocol) Conversation Initiation Protocol is an application layer control (signaling) protocol for network telephony and conferencing. It is mainly a multimedia communication protocol based on IP network. It can realize the signaling functions are also using RTP as a media transmission
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