[  519.183986] bond0: (slave eth0): making interface the new active one
[  519.184070] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.421958] bond0: (slave eth0): Releasing backup interface
[  523.537702] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.707053] bond0: (slave eth0): Releasing backup interface
[  527.732962] bond0 (unregistering): Released all slaves