[ 520.938939] bond0: (slave eth0): making interface the new active one [ 520.939020] bond0: (slave eth0): Enslaving as an active interface with an up link [ 525.151684] bond0: (slave eth0): Releasing backup interface [ 525.260670] bond0: (slave eth0): Enslaving as an active interface with an up link [ 529.436268] bond0: (slave eth0): Releasing backup interface [ 529.468278] bond0 (unregistering): Released all slaves