Caution
The OpenContrail versions support status:
OpenContrail 4.1 is fully supported.
OpenContrail 4.0 is deprecated and not supported for new deployments since MCP maintenance update 2019.2.4.
OpenContrail 3.2 is not supported for new deployments.
An OpenContrail 3.2 cluster contains the following types of nodes:
Includes package-based services of OpenContrail, such as the API server and configuration database.
Includes package-based services for OpenContrail metering and analytics, such as the Cassandra database for analytics and data collectors.
A forwarding plane that runs in the hypervisor of a compute node. It extends the network from the physical routers and switches into a virtual overlay network hosted on compute nodes.
A physical or virtual gateway router that provides access to an external network.
The following diagram describes the minimum production installation of OpenContrail 3.2 with OpenStack for MCP: