[  517.473340] bond0: (slave eth0): making interface the new active one
[  517.473435] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.703652] bond0: (slave eth0): Releasing backup interface
[  521.814582] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.989350] bond0: (slave eth0): Releasing backup interface
[  526.026322] bond0 (unregistering): Released all slaves