[  514.024941] bond0: (slave eth0): making interface the new active one
[  514.025008] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.230968] bond0: (slave eth0): Releasing backup interface
[  518.332967] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.521976] bond0: (slave eth0): Releasing backup interface
[  522.555962] bond0 (unregistering): Released all slaves