The KSZ9893RNXI is a three-port Gigabit Ethernet switch that is commonly used in embedded systems and networking equipment. The Linux kernel includes support for this chip through the “ksz_common” driver, which provides basic functionality such as port configuration, VLAN tagging, and packet forwarding. In addition, many vendors provide their own driver implementations that build on top of the ksz_common driver to provide additional features or optimizations specific to their hardware platform. As with most network hardware drivers, the KSZ9893RNXI driver is implemented as a kernel module that can be loaded dynamically at runtime.
