[  514.660400] bond0: (slave eth0): making interface the new active one
[  514.660516] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.866597] bond0: (slave eth0): Releasing backup interface
[  518.946240] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.087346] bond0: (slave eth0): Releasing backup interface
[  523.109226] bond0 (unregistering): Released all slaves