[ 531.742024] bond0: (slave eth0): making interface the new active one [ 531.742156] bond0: (slave eth0): Enslaving as an active interface with an up link [ 535.948195] bond0: (slave eth0): Releasing backup interface [ 536.017046] bond0: (slave eth0): Enslaving as an active interface with an up link [ 540.176171] bond0: (slave eth0): Releasing backup interface [ 540.202217] bond0 (unregistering): Released all slaves