[  514.828005] bond0: (slave eth0): making interface the new active one
[  514.828088] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.067703] bond0: (slave eth0): Releasing backup interface
[  519.173631] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.351032] bond0: (slave eth0): Releasing backup interface
[  523.384904] bond0 (unregistering): Released all slaves