[  509.793958] bond0: (slave eth0): making interface the new active one
[  509.794016] bond0: (slave eth0): Enslaving as an active interface with an up link
[  514.013037] bond0: (slave eth0): Releasing backup interface
[  514.136878] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.362933] bond0: (slave eth0): Releasing backup interface
[  518.391884] bond0 (unregistering): Released all slaves