[  521.175923] bond0: (slave eth0): making interface the new active one
[  521.176007] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.339381] bond0: (slave eth0): Releasing backup interface
[  525.419337] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.570015] bond0: (slave eth0): Releasing backup interface
[  529.591922] bond0 (unregistering): Released all slaves