[  519.859682] bond0: (slave eth0): making interface the new active one
[  519.859780] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.074205] bond0: (slave eth0): Releasing backup interface
[  524.197172] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.428427] bond0: (slave eth0): Releasing backup interface
[  528.462371] bond0 (unregistering): Released all slaves