[  519.472837] bond0: (slave eth0): making interface the new active one
[  519.472907] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.676906] bond0: (slave eth0): Releasing backup interface
[  523.789953] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.965069] bond0: (slave eth0): Releasing backup interface
[  528.005967] bond0 (unregistering): Released all slaves