[  520.254994] bond0: (slave eth0): making interface the new active one
[  520.255103] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.428327] bond0: (slave eth0): Releasing backup interface
[  524.488426] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.655023] bond0: (slave eth0): Releasing backup interface
[  528.681116] bond0 (unregistering): Released all slaves