Theme: analysis works on the creating of cloud date centers. Plan: Plan: Cloud User’s Expectations

• THEME:ANALYSIS WORKS ON THE CREATING OF CLOUD DATE CENTERS.

PLAN:

• PLAN:
• 1.Cloud User’s Expectations.
• 2. Cloud Provider Needs.
• 3. Holistic Cloud Networking Architecture.

It is indisputable that the large availability of broadband and wireless Internet has pushed users to quit their desktops and invest more time into mobile devices for their daily life. As a result, users are shifting to cloud applications for their per­sonal or their business usages. With the Infrastructure as a Service (IaaS) paradigm, providers such as Amazon Elastic Compute Cloud (EC2) offer virtual machine in­stances to their customers at a competitive cost without the trouble of having them maintain physical servers [136]. These VMs are highly customizable, allowing users to choose their own configuration such as the number of vCPU, OS type, memory and even the geographical location.

• It is indisputable that the large availability of broadband and wireless Internet has pushed users to quit their desktops and invest more time into mobile devices for their daily life. As a result, users are shifting to cloud applications for their per­sonal or their business usages. With the Infrastructure as a Service (IaaS) paradigm, providers such as Amazon Elastic Compute Cloud (EC2) offer virtual machine in­stances to their customers at a competitive cost without the trouble of having them maintain physical servers [136]. These VMs are highly customizable, allowing users to choose their own configuration such as the number of vCPU, OS type, memory and even the geographical location.
• Due to its complexity, the cloud computing industry is facing several uncertain­ties. It is shown in [137] that the performance of cloud computing can vary a lot during the day. For cloud providers it becomes important to offer a viable service by starting to respect service level agreements, at a risk to start losing valuable customers. This problem arises from the fact that service providers tend to opti­mize their physical resources in order to increase their profits, at the expense of user experience.