[  517.235292] bond0: (slave eth0): making interface the new active one
[  517.235359] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.421416] bond0: (slave eth0): Releasing backup interface
[  521.497667] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.650716] bond0: (slave eth0): Releasing backup interface
[  525.686691] bond0 (unregistering): Released all slaves