brctl — Ethernet bridge administration. More information: <https://manned.org/brctl>.

Show a list with information about currently existing Ethernet bridges

sudo brctl show

Create a new Ethernet bridge interface

sudo brctl add {{bridge_name}}

Delete an existing Ethernet bridge interface

sudo brctl del {{bridge_name}}

Add an interface to an existing bridge

sudo brctl addif {{bridge_name}} {{interface_name}}

Remove an interface from an existing bridge

sudo brctl delif {{bridge_name}} {{interface_name}}