[  515.787845] bond0: (slave eth0): making interface the new active one
[  515.787935] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.028283] bond0: (slave eth0): Releasing backup interface
[  520.136072] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.316771] bond0: (slave eth0): Releasing backup interface
[  524.356771] bond0 (unregistering): Released all slaves