/dev/etherswitch?
etherswitch device nodes
Ethernet switch framework
To compile the framework into the kernel, place the following lines in the kernel configuration file:
device etherswitch device miiproxy device iicbus
The etherswitch driver provides a framework for Ethernet switch devices.
/dev/etherswitch?
etherswitch device nodes
5 releases since Debian 9 (Stretch); the text changed 2 times.