[  508.016134] bond0: (slave eth0): making interface the new active one
[  508.016215] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.214234] bond0: (slave eth0): Releasing backup interface
[  512.301452] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.501949] bond0: (slave eth0): Releasing backup interface
[  516.535893] bond0 (unregistering): Released all slaves