[  519.343536] bond0: (slave eth0): making interface the new active one
[  519.343599] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.542072] bond0: (slave eth0): Releasing backup interface
[  523.645562] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.825011] bond0: (slave eth0): Releasing backup interface
[  527.850968] bond0 (unregistering): Released all slaves