[  838.567455][T21300] bond0: (slave eth0): making interface the new active one
[  838.568265][T21300] bond0: (slave eth0): Enslaving as an active interface with an up link
[  838.613312][T21301] 8021q: adding VLAN 0 to HW filter on device bond0
[  842.831600][T21304] bond0: (slave eth0): Releasing backup interface
[  843.003066][T21307] bond0: (slave eth0): Enslaving as an active interface with an up link
[  843.044843][T21308] 8021q: adding VLAN 0 to HW filter on device bond0
[  847.257192][   T12] bond0: (slave eth0): Releasing backup interface
[  847.294205][   T12] bond0 (unregistering): Released all slaves