[  518.255122] bond0: (slave eth0): making interface the new active one
[  518.255215] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.460864] bond0: (slave eth0): Releasing backup interface
[  522.587691] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.813948] bond0: (slave eth0): Releasing backup interface
[  526.845962] bond0 (unregistering): Released all slaves