[  520.194176] bond0: (slave eth0): making interface the new active one
[  520.194287] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.363269] bond0: (slave eth0): Releasing backup interface
[  524.431801] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.592421] bond0: (slave eth0): Releasing backup interface
[  528.617381] bond0 (unregistering): Released all slaves