3.11. Logical Networks
ovirtmgmtnetwork is created by default during the installation of the Red Hat Virtualization to be used for management communication between the Manager and hosts. A typical use for logical networks is to group network traffic with similar requirements and usage together. In many cases, a storage network and a display network are created by an administrator to isolate traffic of each respective type for optimization and troubleshooting.
- logical networks that carry virtual machine network traffic,
- logical networks that do not carry virtual machine network traffic,
- optional logical networks,
- and required networks.
Figure 3.2. The ovirtmgmt logical network.
Example 3.1. Example usage of a logical network.
ovirtmgmtfor all networking functions. The system administrator responsible for Pink decides to isolate network testing for a web server by placing the web server and some client virtual machines on a separate logical network. She decides to call the new logical network
network_testingnetwork. Next she activates White, migrates all of the running virtual machines off of Red, and repeats the process for Red.
network_testinglogical network bridged to a physical network interface, the
network_testinglogical network becomes Operational and is ready to be used by virtual machines.