[  503.772789] bond0: (slave eth0): making interface the new active one
[  503.772853] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.975171] bond0: (slave eth0): Releasing backup interface
[  508.047310] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.205416] bond0: (slave eth0): Releasing backup interface
[  512.243403] bond0 (unregistering): Released all slaves