[  513.862198] bond0: (slave eth0): making interface the new active one
[  513.862320] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.038750] bond0: (slave eth0): Releasing backup interface
[  518.122425] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.266612] bond0: (slave eth0): Releasing backup interface
[  522.298532] bond0 (unregistering): Released all slaves