[  515.796251] bond0: (slave eth0): making interface the new active one
[  515.796352] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.027071] bond0: (slave eth0): Releasing backup interface
[  520.135016] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.320390] bond0: (slave eth0): Releasing backup interface
[  524.351989] bond0 (unregistering): Released all slaves