[  518.824142] bond0: (slave eth0): making interface the new active one
[  518.824247] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.020851] bond0: (slave eth0): Releasing backup interface
[  523.096551] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.249697] bond0: (slave eth0): Releasing backup interface
[  527.270671] bond0 (unregistering): Released all slaves