[ 508.558979] bond0: (slave eth0): making interface the new active one [ 508.559063] bond0: (slave eth0): Enslaving as an active interface with an up link [ 512.789759] bond0: (slave eth0): Releasing backup interface [ 512.884909] bond0: (slave eth0): Enslaving as an active interface with an up link [ 517.082114] bond0: (slave eth0): Releasing backup interface [ 517.119930] bond0 (unregistering): Released all slaves