[  514.729662] bond0: (slave eth0): making interface the new active one
[  514.729733] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.932985] bond0: (slave eth0): Releasing backup interface
[  519.012786] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.159333] bond0: (slave eth0): Releasing backup interface
[  523.181152] bond0 (unregistering): Released all slaves