[  840.015159][T21472] bond0: (slave eth0): making interface the new active one
[  840.015940][T21472] bond0: (slave eth0): Enslaving as an active interface with an up link
[  840.062397][T21473] 8021q: adding VLAN 0 to HW filter on device bond0
[  844.320726][T21476] bond0: (slave eth0): Releasing backup interface
[  844.486873][T21479] bond0: (slave eth0): Enslaving as an active interface with an up link
[  844.540304][T21480] 8021q: adding VLAN 0 to HW filter on device bond0
[  848.711550][T20573] bond0: (slave eth0): Releasing backup interface
[  848.763550][T20573] bond0 (unregistering): Released all slaves