[  516.369814] bond0: (slave eth0): making interface the new active one
[  516.369906] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.601043] bond0: (slave eth0): Releasing backup interface
[  520.709511] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.893396] bond0: (slave eth0): Releasing backup interface
[  524.936026] bond0 (unregistering): Released all slaves