[ 515.571511] bond0: (slave eth0): making interface the new active one [ 515.571607] bond0: (slave eth0): Enslaving as an active interface with an up link [ 519.780163] bond0: (slave eth0): Releasing backup interface [ 519.907188] bond0: (slave eth0): Enslaving as an active interface with an up link [ 524.126035] bond0: (slave eth0): Releasing backup interface [ 524.154014] bond0 (unregistering): Released all slaves