[  515.165617] bond0: (slave eth0): making interface the new active one
[  515.165739] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.370915] bond0: (slave eth0): Releasing backup interface
[  519.448364] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.600689] bond0: (slave eth0): Releasing backup interface
[  523.636680] bond0 (unregistering): Released all slaves