A session in the DevNet Zone at Cisco Live, Berlin. On Cisco Nexus devices, configuration is performed using command-line interfaces (CLIs) that run only on the device. Configuration Management Tools allow you to automate the network devices configuration in the same way sysadmin have automated the server configuration. These tools include Puppet, Chef and Ansible. We will be introducing the concept of each of them, agent vs agent-less and demoing some use cases. We will also describe some of the technology enablers like NX-API REST that allows you to enable configurations that would require issuing many CLI commands by combining configuration actions in relatively few HTTP/HTTPS operations."