Types Of Network Layer

According to CNNIC's report, as of December 2013, the number of websites in China reached 3.2 million, an increase of 520,000 over the previous year, an increase of 19.4%. However, according to the latest Baidu survey, 65% Chinese websites are in an unsafe condition, of which 31% are in moderate or high crisis situations. In such a harsh situation of information security, how to do a good job of server security protection, to protect the information security? Today, I chose the cloud lock, acceleration music, security treasure, 360 website guards which four market comparison ...

There is a concept of an abstract file system in Hadoop that has several different subclass implementations, one of which is the HDFS represented by the Distributedfilesystem class. In the 1.x version of Hadoop, HDFS has a namenode single point of failure, and it is designed for streaming data access to large files and is not suitable for random reads and writes to a large number of small files. This article explores the use of other storage systems, such as OpenStack Swift object storage, as ...

You can say that internal cloud storage is the same as public cloud storage because they are all storage services on the network, except that the components of the internal storage cloud are located behind the firewall. But this definition is not entirely accurate. For example, a public cloud storage vendor can reserve a portion of the capacity for a customer to become a private cloud store.     This article focuses on the types of cloud storage and how to create cloud storage. Here are the different types of cloud storage public cloud storage like Amazon's simplestor ...

In the mobile phone such a small limited screen size, to make the interface to maintain a clear and reasonable, concise and beautiful, it involves the product "framework layout" of the design problem, we need to be based on different product requirements and application scenarios to design a reasonable interface layout. The standard interface layout for the iphone platform is the top title bar, the middle content area, the bottom toolbar/tag bar, the designers according to different types of application and different use of the situation of the ingenious layout, there are many brave to break the rules, delicate and reasonable layout design. Let's take a look at the iphone platform today ...

The achievements of modern science and technology make the human organs in space has been greatly extended, if the telephone is the extension of human voice, television is the extension of human vision, the data center is the extension of the human brain, then the network is a variety of extensions, as well as between the extension and the subject exchange information between the transmission of the instructions of the nervous system. The normal nervous system is one of the basic signs of a healthy human being, similarly, the large bandwidth, the low time delay, the high reliable network system is also makes the human various organs to extend effectively, enters the cloud age the basic guarantee. Cloud business's challenge to the network as information services enter ...

"Editor's note" Network after years of development, has come to the "post-Cisco" era, software definition network, network virtualization and other nouns have come to everyone, this article focuses on the traditional network architecture and SDN network of similarities and differences, the development of network virtualization, you can see, SDN manufacturers are gearing up, because of " We usually overestimate the changes in the next two years, and underestimate the changes that will happen in the next decade ", the traditional enterprises need to actively face the future changes in the network operation, the author from the Network Transformation and technology transformation in two aspects of the network industry in-depth discussion of the ...

Chapter III e-commerce and network retailing the emergence and development of e-commerce since the 1990s, mankind has gradually created a new and powerful productivity-electronic commerce. It is changing people for thousands of years to form the traditional concept of business activities and operating methods, it directly affects business activities, indirect role in all aspects of the economy, triggering the human society after the Agricultural Revolution, the Industrial Revolution after the third revolution. First, the emergence and development of E-commerce E-commerce is an evolving concept, the pioneer of E-commerce in 1996, IBM introduced the ele ...

Currently, DDoS attacks on the cloud are larger than ever, with the largest DDoS attack in 2013 reaching 309 Gbps, and as more organizations migrate business and services to the cloud, a separate component can cause cascading failures. 　　This is the next generation of security and DDoS devices to solve the problem. The following is a translation: At a recent large medical organization security meeting, I was fortunate to see the log of the private cloud infrastructure I had helped design. They showed me a set of interesting numbers that I think might appear to come from DDoS attacks. ...

The achievements of modern science and technology make the human organs in space has been greatly extended, if the telephone is the extension of human voice, television is the extension of human vision, the data center is the extension of the human brain, then the network is a variety of extensions, as well as between the extension and the subject exchange information between the transmission of the instructions of the nervous system. The normal nervous system is one of the basic signs of a healthy human being, similarly, the large bandwidth, the low time delay, the high reliable network system is also makes the human various organs to extend effectively, enters the cloud age the basic guarantee. Cloud business's challenge to the network as information services enter the cloud ...

Overview The key information maintained by the control plane is the network state. The control plane must aggregate this information and make it available to the application. In addition, in order to maintain scalability and component reuse, applications should be exempt from protocol details, even though network state information is obtained through a specific protocol. The Onos topology of the protocol is implemented by two complementary mechanisms: Network Discovery and configuration. The former uses the network protocol to let Onos identify the location and/or performance of the network elements, and take the initiative to carry out the relevant collection work when the function is enabled. The latter allows applications and operations ...