[  512.332446] bond0: (slave eth0): making interface the new active one
[  512.332548] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.571210] bond0: (slave eth0): Releasing backup interface
[  516.678514] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.860127] bond0: (slave eth0): Releasing backup interface
[  520.894082] bond0 (unregistering): Released all slaves