[  520.669465] bond0: (slave eth0): making interface the new active one
[  520.669544] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.881716] bond0: (slave eth0): Releasing backup interface
[  524.957410] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.105806] bond0: (slave eth0): Releasing backup interface
[  529.135666] bond0 (unregistering): Released all slaves