[  513.687627] bond0: (slave eth0): making interface the new active one
[  513.687756] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.852596] bond0: (slave eth0): Releasing backup interface
[  517.920733] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.084847] bond0: (slave eth0): Releasing backup interface
[  522.111859] bond0 (unregistering): Released all slaves