[  517.845209] bond0: (slave eth0): making interface the new active one
[  517.845299] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.993560] bond0: (slave eth0): Releasing backup interface
[  522.055040] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.224799] bond0: (slave eth0): Releasing backup interface
[  526.263844] bond0 (unregistering): Released all slaves