[  514.042848] bond0: (slave eth0): making interface the new active one
[  514.042939] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.299588] bond0: (slave eth0): Releasing backup interface
[  518.411092] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.583975] bond0: (slave eth0): Releasing backup interface
[  522.614073] bond0 (unregistering): Released all slaves