[  518.951003] bond0: (slave eth0): making interface the new active one
[  518.951125] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.147260] bond0: (slave eth0): Releasing backup interface
[  523.223809] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.375128] bond0: (slave eth0): Releasing backup interface
[  527.411896] bond0 (unregistering): Released all slaves