[  514.574848] bond0: (slave eth0): making interface the new active one
[  514.574946] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.738064] bond0: (slave eth0): Releasing backup interface
[  518.821798] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.971667] bond0: (slave eth0): Releasing backup interface
[  523.005365] bond0 (unregistering): Released all slaves