[ 520.143409] bond0: (slave eth0): making interface the new active one [ 520.143509] bond0: (slave eth0): Enslaving as an active interface with an up link [ 524.375369] bond0: (slave eth0): Releasing backup interface [ 524.486588] bond0: (slave eth0): Enslaving as an active interface with an up link [ 528.659758] bond0: (slave eth0): Releasing backup interface [ 528.683651] bond0 (unregistering): Released all slaves