[  520.018122] bond0: (slave eth0): making interface the new active one
[  520.018234] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.179644] bond0: (slave eth0): Releasing backup interface
[  524.250144] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.407301] bond0: (slave eth0): Releasing backup interface
[  528.433308] bond0 (unregistering): Released all slaves