[  503.134615] bond0: (slave eth0): making interface the new active one
[  503.134715] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.344734] bond0: (slave eth0): Releasing backup interface
[  507.425548] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.573515] bond0: (slave eth0): Releasing backup interface
[  511.619429] bond0 (unregistering): Released all slaves