[  519.496469] bond0: (slave eth0): making interface the new active one
[  519.496580] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.669536] bond0: (slave eth0): Releasing backup interface
[  523.741898] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.892299] bond0: (slave eth0): Releasing backup interface
[  527.923285] bond0 (unregistering): Released all slaves