[  517.687403] bond0: (slave eth0): making interface the new active one
[  517.687473] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.876087] bond0: (slave eth0): Releasing backup interface
[  521.951145] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.104419] bond0: (slave eth0): Releasing backup interface
[  526.130485] bond0 (unregistering): Released all slaves