Dell SmartFabric OS10 User Guide Release 10.5.3

Controller-provisioned VXLAN

OS10 supports VXLAN provisioning using an Open vSwitch Database (OVSDB) controller. The only supported OVSDB controller is the VMware NSX controller. In a controller-provisioned VXLAN, the controller manages VXLAN-related configurations and other control-plane operations, such as MAC address propagation.

Controller-provisioned VXLAN

The NSX controller communicates with an OS10 VTEP using the OVSDB management protocol over a Secure Sockets Layer (SSL) connection. To establish communication between the controller and VTEP, generate the SSL certificate at a VTEP and copy the certificate to the NSX controller. After SSL authentication, a secure connection over SSL is established between the controller and the VTEP. The VTEP then receives and processes the configuration data from the controller.

Controller-provisioned VXLAN: Manual configuration

Manually configure the underlay network using the OS10 CLI:

• Configure the L3 protocol used for underlay routing. Underlay reachability to VTEP peers is learned using the configured routing protocol.
• Configure the loopback interface in the default VRF that is used as the VTEP source IP address for controller-based provisioning.
• Assign the VTEP interfaces to that you want the controller to manage.

Controller-provisioned VXLAN: Automatic provisioning

The controller automatically provisions:

• L2 overlay network
• VXLAN virtual networks, including remote VTEP source addresses
• Local access ports in a virtual network

  An OS10 VTEP sends the addition or deletion of server MAC addresses at the VXLAN access port to the NSX controller using the OVSDB protocol. The controller then propagates the information to VTEP peers. The VTEPs program their forwarding tables accordingly.