[  516.293953] bond0: (slave eth0): making interface the new active one
[  516.294072] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.466981] bond0: (slave eth0): Releasing backup interface
[  520.548017] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.702104] bond0: (slave eth0): Releasing backup interface
[  524.743452] bond0 (unregistering): Released all slaves