[  508.946702] bond0: (slave eth0): making interface the new active one
[  508.946804] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.168289] bond0: (slave eth0): Releasing backup interface
[  513.268784] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.456921] bond0: (slave eth0): Releasing backup interface
[  517.495962] bond0 (unregistering): Released all slaves