[  519.481129] bond0: (slave eth0): making interface the new active one
[  519.481234] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.664874] bond0: (slave eth0): Releasing backup interface
[  523.733867] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.893141] bond0: (slave eth0): Releasing backup interface
[  527.927293] bond0 (unregistering): Released all slaves