[  518.547460] bond0: (slave eth0): making interface the new active one
[  518.547545] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.707418] bond0: (slave eth0): Releasing backup interface
[  522.792314] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.935172] bond0: (slave eth0): Releasing backup interface
[  526.972150] bond0 (unregistering): Released all slaves