Enable Cross-AZ high availability for Neutron agents

Enable Cross-AZ high availability for Neutron agents

Note

This feature is available starting from the MCP 2019.2.9 maintenance update. Before using the feature, follow the steps described in Apply maintenance updates.

The Mirantis Cloud Platform (MCP) supports HA with availability zones for Neutron. An availability zone is defined as an agent attribute on a network node and groups network nodes that run services like DHCP, L3, and others. You can associate an availability zone with resources to ensure the resources become HA.

Availability zones provide an extra layer of protection by segmenting the Neutron service deployment in isolated failure domains. By deploying HA nodes across different availability zones, the network services remain available in case of zone-wide failures that affect the deployment. For details, see OpenStack documentation.