def detach(self, iface: CoreInterface) -> None:
"""
Detach network interface.
:param iface: network interface to detach
:return: nothing
"""
del self.ifaces[iface.net_id]
iface.net_id = None
with self._linked_lock:
del self._linked[iface]
def attach(self, iface: CoreInterface) -> None:
"""
Attach network interface.
:param iface: network interface to attach
:return: nothing
"""
i = self.next_iface_id()
self.ifaces[i] = iface
iface.net_id = i
with self._linked_lock:
self._linked[iface] = {}