The cloud virtualizes servers to form a virtual resource pool, which saves resource costs and is easier to manage than physical machines. Cloud is the concept of computing, storage, and network resource pooling. The search engines, mailboxes, and online disks we use every day are very standard clouds, and most of them are free, so the cloud has nothing to do with whether it is charged or not. The cloud is an upgrade to the Internet, which means that the Internet does not just store data, but provides you with certain services.
Because of their similarities, many organizations may sometimes think that cloud computing and cloud networking are interchangeable. But these two strategies have different goals and processes.
As organizations increasingly run their applications in cloud services, the use of cloud computing has grown steadily. With the growth of cloud computing applications, cloud networks have also emerged.
Cloud computing focuses on how applications run
The cloud network pays attention to the way the application is accessed
Cloud network
Cloud network transfers network management, control and even data connection to cloud computing services. Examples include using cloud computing-based network controllers to direct traffic across WAN connections, or using the cloud computing service provider’s internal WAN to carry customer WAN traffic.
There is a natural overlap between cloud networking and cloud computing. For example, some network equipment-centric functions in traditional data centers can be embedded in a cloud computing environment together with a load balancer, or delivered in the form of SaaS cloud services like a secure web gateway or firewall.
Almost all organizations use cloud computing, and at least 97% of organizations use SaaS. There are fewer and fewer organizations using cloud networks, but with the popularity of cloud-based software-defined WAN, cloud-based wireless LAN management and secure cloud computing access services, this number will rise sharply.
cloud computing
Cloud computing is the transfer of application hosting to the data center of the cloud computing service provider, rather than the traditional internal or hosted data center. Enterprise customers cannot access or directly control basic hardware services. According to the type of cloud computing service, customers can view and control the different layers above the hardware. For example, the following three cloud computing models provide different levels of control:
(1) IaaS provides a hypervisor layer on which customers can configure virtual machines, for example, and can monitor from the operating system level.
(2) PaaS provides access to a certain type of middleware environment, in which applications can be deployed, and the behavior of the code and environment can be monitored, but the underlying layers cannot be monitored.
(3) SaaS provides access to running applications, and customers can only monitor their own pieces of the application.