[  514.868159] bond0: (slave eth0): making interface the new active one
[  514.868255] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.059024] bond0: (slave eth0): Releasing backup interface
[  519.127175] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.291719] bond0: (slave eth0): Releasing backup interface
[  523.312432] bond0 (unregistering): Released all slaves