[  834.582435][ T9515] bond0: (slave eth0): making interface the new active one
[  834.583343][ T9515] bond0: (slave eth0): Enslaving as an active interface with an up link
[  839.310456][ T9519] bond0: (slave eth0): Releasing backup interface
[  839.892998][ T9522] bond0: (slave eth0): Enslaving as an active interface with an up link
[  844.620536][ T8866] bond0: (slave eth0): Releasing backup interface
[  844.994136][ T8866] bond0 (unregistering): Released all slaves