[  507.582945] bond0: (slave eth0): making interface the new active one
[  507.583034] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.762360] bond0: (slave eth0): Releasing backup interface
[  511.837763] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.991451] bond0: (slave eth0): Releasing backup interface
[  516.030458] bond0 (unregistering): Released all slaves