[  517.157424] bond0: (slave eth0): making interface the new active one
[  517.157517] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.370280] bond0: (slave eth0): Releasing backup interface
[  521.468853] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.652093] bond0: (slave eth0): Releasing backup interface
[  525.698126] bond0 (unregistering): Released all slaves