[  520.432342] bond0: (slave eth0): making interface the new active one
[  520.432494] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.628870] bond0: (slave eth0): Releasing backup interface
[  524.711427] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.854262] bond0: (slave eth0): Releasing backup interface
[  528.881187] bond0 (unregistering): Released all slaves