[  520.503719] bond0: (slave eth0): making interface the new active one
[  520.503792] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.695396] bond0: (slave eth0): Releasing backup interface
[  524.813989] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.977824] bond0: (slave eth0): Releasing backup interface
[  529.008782] bond0 (unregistering): Released all slaves