Automated overlay network deployment

Automated overlay network deployment covers VXLAN deployment and EVPN deployment.

Automated overlay network deployment is mainly implemented through the following features of Neutron:

• Layer 2 agent (L2 agent)—Responds to OpenStack events such as network creation, subnet creation, and port creation. It deploys Layer 2 networking to provide Layer 2 connectivity within a virtual network and Layer 2 isolation between different virtual networks.

• Layer 3 agent (L3 agent)—Responds to OpenStack events such as virtual router creation, interface creation, and gateway configuration. It deploys the IP gateways to provide Layer 3 forwarding services for VMs.

For the device to correctly communicate with the Neutron server through the RabbitMQ server, you need to configure the parameters related with the RabbitMQ server. The parameters include the IP address of the RabbitMQ server, the username and password to log in to the RabbitMQ server, and the listening port.