[  514.848825] bond0: (slave eth0): making interface the new active one
[  514.848911] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.093691] bond0: (slave eth0): Releasing backup interface
[  519.214650] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.377042] bond0: (slave eth0): Releasing backup interface
[  523.420028] bond0 (unregistering): Released all slaves