[  519.837529] bond0: (slave eth0): making interface the new active one
[  519.837604] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.987590] bond0: (slave eth0): Releasing backup interface
[  524.054810] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.208349] bond0: (slave eth0): Releasing backup interface
[  528.225326] bond0 (unregistering): Released all slaves