[  514.924051] bond0: (slave eth0): making interface the new active one
[  514.924131] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.133790] bond0: (slave eth0): Releasing backup interface
[  519.233303] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.413927] bond0: (slave eth0): Releasing backup interface
[  523.443887] bond0 (unregistering): Released all slaves