[  519.251435] bond0: (slave eth0): making interface the new active one
[  519.251526] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.411839] bond0: (slave eth0): Releasing backup interface
[  523.487425] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.638166] bond0: (slave eth0): Releasing backup interface
[  527.670150] bond0 (unregistering): Released all slaves