[  502.348256] bond0: (slave eth0): making interface the new active one
[  502.348336] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.518244] bond0: (slave eth0): Releasing backup interface
[  506.595400] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.742430] bond0: (slave eth0): Releasing backup interface
[  510.767349] bond0 (unregistering): Released all slaves