[  513.144146] bond0: (slave eth0): making interface the new active one
[  513.144237] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.342142] bond0: (slave eth0): Releasing backup interface
[  517.444270] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.629204] bond0: (slave eth0): Releasing backup interface
[  521.661135] bond0 (unregistering): Released all slaves