[  513.408845] bond0: (slave eth0): making interface the new active one
[  513.408953] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.655190] bond0: (slave eth0): Releasing backup interface
[  517.784866] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.005870] bond0: (slave eth0): Releasing backup interface
[  522.034903] bond0 (unregistering): Released all slaves