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MODULE 13, image, image, image, image, image - Coggle Diagram
MODULE 13
Cloud Computing
Cloud computing involves large numbers of computers connected through a network that can be physically located anywhere. Cloud computing can reduce operational costs by using resources more efficiently.
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It eliminates or reduces the need for onsite IT equipment, maintenance, and management.
It reduces cost for equipment, energy, physical plant requirements, personnel training needs.
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Virtualization
The terms “cloud computing” and “virtualization” are often used interchangeably; however, they mean different things. Virtualization is the foundation of cloud computing. Virtualization separates the operating system (OS) from the hardware
A Type 2 hypervisor is software that creates and runs VM instances. It can be installed on top of the OS or can be installed between the firmware and the OS. A Type 2 hypervisor is software that creates and runs VM instances.
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Controllers
The SDN controller is a logical entity that enables network administrators to manage and dictate how the data plane of switches and routers should handle network traffic
The controller populates flow tables. Switches manage the flow tables. A flow table matches incoming packets to a particular flow and specifies the functions that are to be performed on the packets.
here are three types of SDN. Device-based SDN is when the devices are programmable by applications running on the device itself or on a server in the network.
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