[  513.782991] bond0: (slave eth0): making interface the new active one
[  513.783068] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.042683] bond0: (slave eth0): Releasing backup interface
[  518.147839] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.332020] bond0: (slave eth0): Releasing backup interface
[  522.355990] bond0 (unregistering): Released all slaves