The Linux bridge Mechanism driver supports a range of traditional and overlay networking technologies, and has support for the following types of drivers:
- Local
- Flat
- VLAN
- VXLAN
When a host is configured to use the ML2 plugin and the Linux bridge Mechanism driver, the Neutron agent on the host relies on the bridge, 8021q, and vxlan kernel modules to properly connect instances and other network resources to virtual switches. These connections allow instances to communicate with other network resources in and out of the cloud. The Linux bridge Mechanism driver is popular for its dependability and ease of troubleshooting but lacks support for some advanced Neutron features such as distributed virtual routers.
In a Linux bridge-based network implementation, there are five types of interfaces managed by OpenStack Networking:
- Tap interfaces
- Physical interfaces...
