[  511.888476] bond0: (slave eth0): making interface the new active one
[  511.888548] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.050761] bond0: (slave eth0): Releasing backup interface
[  516.129613] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.280200] bond0: (slave eth0): Releasing backup interface
[  520.312199] bond0 (unregistering): Released all slaves