[  514.456505] bond0: (slave eth0): making interface the new active one
[  514.456586] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.688351] bond0: (slave eth0): Releasing backup interface
[  518.791818] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.971053] bond0: (slave eth0): Releasing backup interface
[  522.992934] bond0 (unregistering): Released all slaves