[  516.476843] bond0: (slave eth0): making interface the new active one
[  516.476916] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.663932] bond0: (slave eth0): Releasing backup interface
[  520.776513] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.948021] bond0: (slave eth0): Releasing backup interface
[  524.982976] bond0 (unregistering): Released all slaves