[  513.713191] bond0: (slave eth0): making interface the new active one
[  513.713288] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.977738] bond0: (slave eth0): Releasing backup interface
[  518.083825] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.260079] bond0: (slave eth0): Releasing backup interface
[  522.289942] bond0 (unregistering): Released all slaves