[  515.865767] bond0: (slave eth0): making interface the new active one
[  515.865862] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.096006] bond0: (slave eth0): Releasing backup interface
[  520.204773] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.391962] bond0: (slave eth0): Releasing backup interface
[  524.417951] bond0 (unregistering): Released all slaves