[  838.344452][T21849] bond0: (slave eth0): making interface the new active one
[  838.344922][T21849] bond0: (slave eth0): Enslaving as an active interface with an up link
[  838.385875][T21850] 8021q: adding VLAN 0 to HW filter on device bond0
[  842.626196][T21853] bond0: (slave eth0): Releasing backup interface
[  842.781434][T21856] bond0: (slave eth0): Enslaving as an active interface with an up link
[  842.839136][T21857] 8021q: adding VLAN 0 to HW filter on device bond0
[  846.983818][   T71] bond0: (slave eth0): Releasing backup interface
[  847.039756][   T71] bond0 (unregistering): Released all slaves