[  514.559752] bond0: (slave eth0): making interface the new active one
[  514.559853] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.737888] bond0: (slave eth0): Releasing backup interface
[  518.812213] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.959167] bond0: (slave eth0): Releasing backup interface
[  522.989109] bond0 (unregistering): Released all slaves