[  515.518224] bond0: (slave eth0): making interface the new active one
[  515.518314] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.766353] bond0: (slave eth0): Releasing backup interface
[  519.879571] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.051006] bond0: (slave eth0): Releasing backup interface
[  524.085874] bond0 (unregistering): Released all slaves