sdn protocols

Reprint Address: http://blog.jobbole.com/84429/TCP HTTP UDP:is the communication protocol, that is, the rules of communication, only the two parties in accordance with this rule "speak", the other party can understand or serve.The relationship between TCP HTTP UDP three:TCP/IP is a protocol group, which can be divided into four levels: network interface layer, network layer, Transport layer and application layer.At the network layer are IP protocols,

This article Reprinted from: http://www.ruanyifeng.com/blog/2012/05/internet_protocol_suite_part_ I .html We use the Internet every day. Have you ever wondered how it is implemented? Billions of computers around the world are connected together and communicate with each other. One Network Card in Shanghai sends a signal, and the other network card in Los Angeles actually receives the signal. The two actually do not know the physical location of the other. Do you think this is amazing? The core

Network protocols are the basis for the development of the Internet. If we want to control the network well, we must have a clear understanding of network protocols. Here we will explain some elements of the network protocol. A network protocol includes at least three elements: The syntax is used to specify the information format. The format, encoding, and electrical equality of data and control information

The OSI seven-layer model is a standard system and framework for interconnection between different computers or communication systems, including a range of standards and protocols in OSI, such as TCP/IP, UDP, HTTP, and so on, which provide implementation and support for these protocols in Node.js, such as: NET modules provide TCP, Socket encapsulation and support, the Dgram module provides a package and sup

LAN protocol is the most important part of our LAN. With the coexistence of LAN and Internet. These protocols have also been affected by the deepening of Internet protocols. Computer network applications have been applied in almost all fields of human activity. The core of all network applications is network protocols. Network protocol is a supporting software an

More and more developers and designers want to open-source their products so that others can do more on the basis of their code. The open-source community is also full of vigor. Open-source software exists in all the application fields we can think of (open-source CMS such as WordPress and Drupal ). However, many people do not know about open-source licenses. This article describes several license protocols commonly used in the open-source field and t

and other multimedia information, as a package protocol, IP addresses seem a little inadequate: Long latency and not a fixed value. packet loss leads to discontinuous signals and high distortion. To solve these problems, the vendor provides several solutions: the first solution is based on the priority of different objects, and some devices are mostly multimedia applications.) data packets can be uploaded first. The second scheme is based on the protocol priority. You can define which Protocol

HTTPS protocols: TLS, SSL, SNI, ALPN, PNP, snialpn HTTPS is now widely used. It brings security while introducing more complicated concepts to the Web. This includes a series of network protocols that have never been seen before. Now, based on the principle of HTTPS, Harttle tries to interpret these protocols in the most popular way. HTTPS Overview HTTPS is an H

Why are we always talking about router protocols? For the construction of a network, the use of the router protocol is directly related to the various performance and indicators of the network. So this is very important. With the complexity of the network structure, the use of a single Router Protocol can no longer meet the needs. Therefore, there will be a variety of router protocols in a network, so how t

First, the summaryThis paper compares the transmission performance of 5 kinds of communication protocols such as Rmi,hessian,burlap,httpinvoker,web service in different data structures and different data volumes. RMI is the Java language itself provides the communication protocol, stable and efficient, is the basis of EJB. However, it can only be used for communication between Java programs. Hessian and burlap are open-source

infrastructure or central device. In this system, all nodes can be moved randomly, and can maintain contact with other nodes, that is, each mobile node acts as both a router and a terminal at the same time. When two user terminals cannot communicate directly, communication is usually achieved by means of the routing function of other nodes ｡ The routing protocol is the basis for communication between mobile nodes in the Ad-hoc network. It also directly affects QoS and security of communication

The legendary WCF (1): Is this hard to learn?The legendary WCF (2): What about service agreements?Legendary WCF (3): multiple protocolsLegendary WCF (4): send and receive SOAP HeadersLegendary WCF (5): data protocols ()Legendary WCF (6): data protocols (B)Legendary WCF (7): "one-way" "two-way"Legendary WCF (8): Play with message protocolsLegendary WCF (9): stream and file transferLegendary WCF (10): messag

The legendary WCF (1): Is this hard to learn?The legendary WCF (2): What about service agreements?Legendary WCF (3): multiple protocolsLegendary WCF (4): send and receive SOAP HeadersLegendary WCF (5): data protocols ()Legendary WCF (6): data protocols (B)Legendary WCF (7): "one-way" "two-way"Legendary WCF (8): Play with message protocolsLegendary WCF (9): stream and file transferLegendary WCF (10): messag

bandwidth to multimedia signals. Other protocols are not allowed to occupy the bandwidth regardless of the congestion. These solutions can effectively improve the transmission quality. Rip, OSPF, and BGP protocols A large number of routing protocols running on the Internet are rip (Routing Information Protocol-Routing Information Protocol) and OSPF (Open Short

Wolfram Hempel is the co-founder of Deepstreamio. Deepstreamio is a German-based technology start-up company that provides high-performance, secure, and scalable real-time communication services for mobile clients, as well as IoT devices. Text translated by Jiatong, please specify from the highly available architecture. Want to send a request to the server and get a response? Use HTTP directly! Very simple. But when you need to communicate through a long-lasting two-way connection, such as

This article describes the basic working principles of routers in TCP/IP networks and introduces several functions of IP routers, the static and dynamic routing protocols, as well as the concepts of the internal gateway protocol and the external gateway protocol are given, at the same time, the most common RIP, OSPF, BGP and BGP-4 routing protocols are briefly introduced, and then the design objectives and

, intuitive, and efficient. Due to the large amount of information transmitted by digital videos and limited bandwidth, the compression and encoding of videos, selection of transmission channels and network protocols, and IP Multicast technology (IP Multicast) software Implementation Based on the Windows operating platform has become a key technology in network-based digital video transmission applications. Among them, the choice of transmission chann

languages. By using source code and documents, you can understand the architecture of the entire software and the implementation methods of a specific function. Object Code refers to the object code generated after the source code is compiled, similar to the "class library". It provides various interfaces for others to use. According to my understanding, it is something like common DLL, ActiveX, OCX controls. (I don't know if this is correct) The purpose of these two concepts is to make it clea

Many people may be familiar with the term Router Protocol, especially the rapid development of the network, the Internet Router Protocol is constantly improved, and many new features are also emerging. The wide application of information technology in various fields has promoted the rapid development of information exchange networks. Internet is the biggest beneficiary. The main node and device of the Internet network are routers. The router technology determines data forwarding through routing.

FCoE vs iSCSI After discussing the fusion mode, we can finally talk about whether to choose iSCSI or FCoE. The following are four main considerations: 1. Data center strategy, 2. Performance Requirements, 3. Compatibility goals, 4. Cost issues. In any situation, these four factors are very important for selecting FCoE or iSCSI, and the final decision can be made without any factors. In some cases, FCoE may be cheaper than iSCSI, and vice versa. Figure 6 multi-faceted SCSI No matter which protoc