[  520.175403] bond0: (slave eth0): making interface the new active one
[  520.175489] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.415905] bond0: (slave eth0): Releasing backup interface
[  524.495379] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.703921] bond0: (slave eth0): Releasing backup interface
[  528.738436] bond0 (unregistering): Released all slaves