[  517.554311] bond0: (slave eth0): making interface the new active one
[  517.554402] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.757724] bond0: (slave eth0): Releasing backup interface
[  521.866373] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.038088] bond0: (slave eth0): Releasing backup interface
[  526.068174] bond0 (unregistering): Released all slaves