[  520.572615] bond0: (slave eth0): making interface the new active one
[  520.572683] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.742584] bond0: (slave eth0): Releasing backup interface
[  524.810421] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.970426] bond0: (slave eth0): Releasing backup interface
[  529.005312] bond0 (unregistering): Released all slaves