[  515.757954] bond0: (slave eth0): making interface the new active one
[  515.758032] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.961506] bond0: (slave eth0): Releasing backup interface
[  520.079484] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.244073] bond0: (slave eth0): Releasing backup interface
[  524.276041] bond0 (unregistering): Released all slaves