The default state is typically electrical port enabled. If an optical module and fiber optic cable are used, users must manually log into the device and enable the optical port for communication to be established. Follow these steps to configure the state of a double Combo port: To do. Use the command. By default, of the two ports in a Combo port, the one with a smaller port ID is enabled. That is, only one of the two ports forming. The following uses the Moduletek QSFP-40G-LR4 module connected to an H3C S6820 switch as an example to introduce how to read information of the connected optical module on an H3C switch. About the H3C S12500 documentation set The H3C S12500 documentation set includes: Category.