[  511.897788] bond0: (slave eth0): making interface the new active one
[  511.897892] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.135076] bond0: (slave eth0): Releasing backup interface
[  516.238696] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.411223] bond0: (slave eth0): Releasing backup interface
[  520.441075] bond0 (unregistering): Released all slaves