[  517.185255] bond0: (slave eth0): making interface the new active one
[  517.185343] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.351955] bond0: (slave eth0): Releasing backup interface
[  521.425840] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.585528] bond0: (slave eth0): Releasing backup interface
[  525.607258] bond0 (unregistering): Released all slaves