# CzechLight SDN CzechLight SDN devices are optical network elements developed by CESNET. They are all managed in the same way, either over SSH and a local console, or through NETCONF and RESTCONF with YANG models for SDN control. If you have just unpacked a device, start with its quick start guide, for example the {ref}`Dual BiDi EDFA quick start `. ```{toctree} --- caption: Products maxdepth: 2 --- bidi-edfa/index ``` ```{toctree} --- caption: Common to all devices maxdepth: 2 --- platform/installation platform/management-ports platform/first-connection platform/cli platform/network platform/upgrade ``` ```{toctree} --- hidden: --- genindex ```