[  836.919222][ T9020] bond0: (slave eth0): making interface the new active one
[  836.920302][ T9020] bond0: (slave eth0): Enslaving as an active interface with an up link
[  841.706666][ T9024] bond0: (slave eth0): Releasing backup interface
[  842.230003][ T9027] bond0: (slave eth0): Enslaving as an active interface with an up link
[  846.871370][ T8515] bond0: (slave eth0): Releasing backup interface
[  847.120277][ T8515] bond0 (unregistering): Released all slaves