[  872.510727][T20209] bond0: (slave eth0): making interface the new active one
[  872.511157][T20209] bond0: (slave eth0): Enslaving as an active interface with an up link
[  872.566917][T20210] 8021q: adding VLAN 0 to HW filter on device bond0
[  876.782033][T20213] bond0: (slave eth0): Releasing backup interface
[  876.918207][T20216] bond0: (slave eth0): Enslaving as an active interface with an up link
[  876.962931][T20217] 8021q: adding VLAN 0 to HW filter on device bond0
[  881.147602][   T12] bond0: (slave eth0): Releasing backup interface
[  881.206996][   T12] bond0 (unregistering): Released all slaves