[  513.615606] bond0: (slave eth0): making interface the new active one
[  513.615740] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.778233] bond0: (slave eth0): Releasing backup interface
[  517.854966] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.003407] bond0: (slave eth0): Releasing backup interface
[  522.030345] bond0 (unregistering): Released all slaves