[  517.254592] bond0: (slave eth0): making interface the new active one
[  517.254720] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.425280] bond0: (slave eth0): Releasing backup interface
[  521.504128] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.651996] bond0: (slave eth0): Releasing backup interface
[  525.687927] bond0 (unregistering): Released all slaves