[  522.712311] bond0: (slave eth0): making interface the new active one
[  522.712378] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.867998] bond0: (slave eth0): Releasing backup interface
[  526.941760] bond0: (slave eth0): Enslaving as an active interface with an up link
[  531.097738] bond0: (slave eth0): Releasing backup interface
[  531.131796] bond0 (unregistering): Released all slaves