[  520.099948] bond0: (slave eth0): making interface the new active one
[  520.100015] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.306149] bond0: (slave eth0): Releasing backup interface
[  524.389614] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.530759] bond0: (slave eth0): Releasing backup interface
[  528.560853] bond0 (unregistering): Released all slaves