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Network Virtualization, . - Coggle Diagram

- - - - Data center: A facility for data storage and processing managed by an internal IT departament of leased off-side
      - Cloud Conputing an off-site service providing on-demand access to a shared pool of configurable computing resourses, provisioned and released whit minimal management effort
    - - A data center can ocupy a room a floor or an entire building
- - - - Additionally, it simplifies disaster recovery with easy backup and restoration through VM snapshots and replication. Virtualization also supports testing and development in isolated environments, ensuring production systems remain unaffected. These benefits make virtualization essential in modern IT and cloud computing.
  - - - Type 1 (Bare-Metal): Installed directly on the hardware, offering better performance and stability. Common in enterprise environments (e.g., VMware ESXi, Microsoft Hyper-V).
      - Type 2 (Hosted): Runs on top of a host operating system, suitable for personal or small-scale use (e.g., Oracle VirtualBox, VMware Workstation).
- - - - For example, assume that Server1 in the figure becomes low on resources. To make more resources available, the network administrator uses the management console to move the Windows instance to the hypervisor on Server2. The management console can also be programmed with thresholds that will trigger the move automatically.
  - - - Additionally, virtualization expands the attack surface, necessitating robust security strategies. Managing virtualized networks effectively requires advanced tools, automation, and expertise to ensure scalability, performance, and reliability.