[  517.579515] bond0: (slave eth0): making interface the new active one
[  517.579602] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.823912] bond0: (slave eth0): Releasing backup interface
[  521.952865] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.177274] bond0: (slave eth0): Releasing backup interface
[  526.206935] bond0 (unregistering): Released all slaves