[  667.022432] bond0: (slave eth0): making interface the new active one
[  667.022555] bond0: (slave eth0): Enslaving as an active interface with an up link
[  671.180015] bond0: (slave eth0): Releasing backup interface
[  671.250604] bond0: (slave eth0): Enslaving as an active interface with an up link
[  675.403061] bond0: (slave eth0): Releasing backup interface
[  675.427022] bond0 (unregistering): Released all slaves