[  520.269486] bond0: (slave eth0): making interface the new active one
[  520.269582] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.507332] bond0: (slave eth0): Releasing backup interface
[  524.630007] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.856637] bond0: (slave eth0): Releasing backup interface
[  528.888478] bond0 (unregistering): Released all slaves