[  520.606197] bond0: (slave eth0): making interface the new active one
[  520.606264] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.744918] bond0: (slave eth0): Releasing backup interface
[  524.817504] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.973606] bond0: (slave eth0): Releasing backup interface
[  529.001176] bond0 (unregistering): Released all slaves