apn protocol

When processing TCP data, we need to consider a problem of sticking packets. The so-called sticking packet is that the data received this time is not necessarily completely corresponding to the data sent by the other party. the data sent by the other Party may need to be received multiple times before it can be completed. The actual situation should be reviewed. To solve the packet ordering problem, a data analysis protocol must be developed for proce

Learning notes-transmission of TCP/IP protocol, learning notes-tcpip Protocol1. Data Transmission over the network can be divided into two types: connection-oriented and connection-free:1.For connectionless protocols, such as Ethernet, IP, and UDP. 2. For connected protocols, such as ATM, frame relay, and TCP. See the following figure: Connection Oriented In connection-oriented mode, before sending data, you must connect a communication line betwe

component version update details will be released in the group first) Last modified: April 3, 2018 09:44:41Inside all kinds of small partners, for you to answer data interaction, programming skills, if you have any questions about the API provided by this interface, you can add group consultation, if there are better suggestions, welcome to put forward.Complete information about the components and other API descriptions refer to: The Http://www.cnblogs.com/dathlin/p/7703805.html component's aut

It programmer development Essentials-all kinds of resources download list, history of the most IT resources, personal collection summary. SMTP protocol All called Simple Mail Transfer Protocol, which defines the rules for communication between the mail client software and the SMTP server, and between two SMTP servers. POP3 Protocol All called the Post Office

Vamei Source: Http://www.cnblogs.com/vamei Welcome reprint, Please also keep this statement. Thank you!After a cursory look at IP relays and IP addresses, we turn to the specifics and design philosophy of IP protocols.comparison of IPv4 and IPv6 headWe have already introduced in the IP relay, an IP packet is divided into the header (header) and the data (payload/data) two parts. The head is the additional information necessary to implement IP communication, and the data is the information to be

Small } var k:kind{ if (String (self). lowercasestring = = "a") { return kind.big }else{ return kind.small } }}var Ch:character = "a" CH.K //Returns an enumeration value Kind.bigIi. Agreement (protocol)You can define methods and properties , which are implemented by specific classes . More and more like JavaThe protocols in Swift can be implemented by classes , enumerations , and structs .

//Main.m05-protoco//Created by Apple on 13-8-11.Copyright (c) 2013 itcast. All rights reserved.///*1. Definition of the Agreement@protocol Agreement name Method declaration List ....@end2. How to comply with the agreement1> Class Compliance Agreement@interface Class Name: Parent class name @end2> Protocol Compliance Agreement@protocol Agreement name @end3. Keywor

WEBQQ usage of the latest login protocol, WEBQQ protocol usage This article describes the usage of WEBQQ's latest landing protocol. Share to everyone for your reference. The specific analysis is as follows: WEBQQ protocol Update, the original landing algorithm and other information changes, resulting in a lot of frien

HTTP protocol and http protocol details HTTP protocol Purpose: Describe the protocol for data transmission between the client and the server. Full name: Hypertext Transfer Protocol Common versions: 1.0 and 1.1 Stateless Protocol