[  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