[  515.946454] bond0: (slave eth0): making interface the new active one
[  515.946536] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.221375] bond0: (slave eth0): Releasing backup interface
[  520.319343] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.502140] bond0: (slave eth0): Releasing backup interface
[  524.533048] bond0 (unregistering): Released all slaves