hdlc 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

Protocol protocol:The protocol is similar to the interface in C #L used to declare the methodL if a class complies with an agreement, then it has all the statements of the agreement.L can comply with multiple protocolsAs long as the parent adheres to a protocol, the subclass adheres to that protocol.Comply with the agreement Inheritance by:1.

, it becomes easy to enable the GTIDs function. However, GTIDs not only replaces the old binary log file/location with a separate identifier, but also adopts a new replication protocol. If you do not understand this yet, you can learn something in this article. Replication protocol: New VS old The old protocol is often simple: first, connect to a given binary log

MySQL5.6 has many new features, many of whom are interested in the global transaction ordinal function (Gtids). The reason why everyone is interested in this feature is that it's always a hassle to reconnect from the server and a new primary server, but it's easy to do after enabling the Gtids feature. However, the use of Gtids not only replaces the old binary log file/location with a separate identifier, it also uses a new replication protocol. If yo

data link between adjacent nodes is established, and the data frame (frame) is transmitted without error on the channel through error control, and the action series on each circuit is carried out. The data link layer provides reliable transmission on unreliable physical media. The functions of this layer include: Physical address addressing, data framing, flow control, data error checking, re-sending, etc. In this layer, the units of the data are called frames. The Data Link layer

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