[  514.486075] bond0: (slave eth0): making interface the new active one
[  514.486154] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.679752] bond0: (slave eth0): Releasing backup interface
[  518.791193] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.961978] bond0: (slave eth0): Releasing backup interface
[  522.994902] bond0 (unregistering): Released all slaves