[  515.559446] bond0: (slave eth0): making interface the new active one
[  515.559516] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.791258] bond0: (slave eth0): Releasing backup interface
[  519.909955] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.077108] bond0: (slave eth0): Releasing backup interface
[  524.117013] bond0 (unregistering): Released all slaves