[ 537.688312] bond0: (slave eth0): making interface the new active one [ 537.688402] bond0: (slave eth0): Enslaving as an active interface with an up link [ 541.901693] bond0: (slave eth0): Releasing backup interface [ 541.996568] bond0: (slave eth0): Enslaving as an active interface with an up link [ 546.187755] bond0: (slave eth0): Releasing backup interface [ 546.209683] bond0 (unregistering): Released all slaves