[  507.709061] bond0: (slave eth0): making interface the new active one
[  507.709150] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.886894] bond0: (slave eth0): Releasing backup interface
[  511.986843] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.180829] bond0: (slave eth0): Releasing backup interface
[  516.217881] bond0 (unregistering): Released all slaves