[  855.656114][ T9761] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  855.774133][ T9762] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  855.849586][ T9763] br0: port 1(veth0) entered blocking state
[  855.849923][ T9763] br0: port 1(veth0) entered disabled state
[  855.850194][ T9763] veth0: entered allmulticast mode
[  855.851404][ T9763] veth0: entered promiscuous mode
[  855.952004][ T9764] br0: port 2(veth1) entered blocking state
[  855.952352][ T9764] br0: port 2(veth1) entered disabled state
[  855.952634][ T9764] veth1: entered allmulticast mode
[  855.954316][ T9764] veth1: entered promiscuous mode
[  856.348018][   T55] br0: port 1(veth0) entered blocking state
[  856.348417][   T55] br0: port 1(veth0) entered forwarding state
[  856.349960][   T55] br0: port 2(veth1) entered blocking state
[  856.350345][   T55] br0: port 2(veth1) entered forwarding state
[  857.603611][ T8929] bond0: (slave veth1): link status definitely up
[  857.604187][ T8929] bond0: (slave veth1): making interface the new active one
[  857.605611][ T8929] bond0: active interface up!
[  858.074373][ T8929] veth1: left allmulticast mode
[  858.074587][ T8929] veth1: left promiscuous mode
[  858.074940][ T8929] br0: port 2(veth1) entered disabled state
[  858.077933][ T8929] veth0: left allmulticast mode
[  858.078329][ T8929] veth0: left promiscuous mode
[  858.078630][ T8929] br0: port 1(veth0) entered disabled state
[  858.252582][ T8929] bond0: (slave veth1): Releasing backup interface
[  858.440552][ T8929] bond0: (slave veth0): Releasing backup interface
[  858.799964][ T8929] bond0 (unregistering): Released all slaves