[  850.006377][ T9740] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  850.111078][ T9741] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  850.208382][ T9742] br0: port 1(veth0) entered blocking state
[  850.208665][ T9742] br0: port 1(veth0) entered disabled state
[  850.208913][ T9742] veth0: entered allmulticast mode
[  850.210215][ T9742] veth0: entered promiscuous mode
[  850.306575][ T9743] br0: port 2(veth1) entered blocking state
[  850.306877][ T9743] br0: port 2(veth1) entered disabled state
[  850.307168][ T9743] veth1: entered allmulticast mode
[  850.308389][ T9743] veth1: entered promiscuous mode
[  850.903054][ T9022] br0: port 1(veth0) entered blocking state
[  850.903452][ T9022] br0: port 1(veth0) entered forwarding state
[  850.905012][ T9022] br0: port 2(veth1) entered blocking state
[  850.905347][ T9022] br0: port 2(veth1) entered forwarding state
[  851.958633][ T5709] bond0: (slave veth1): link status definitely up
[  851.959048][ T5709] bond0: (slave veth1): making interface the new active one
[  851.960302][ T5709] bond0: active interface up!
[  852.210947][  T300] veth1: left allmulticast mode
[  852.211906][  T300] veth1: left promiscuous mode
[  852.212235][  T300] br0: port 2(veth1) entered disabled state
[  852.215011][  T300] veth0: left allmulticast mode
[  852.215250][  T300] veth0: left promiscuous mode
[  852.215581][  T300] br0: port 1(veth0) entered disabled state
[  852.381045][  T300] bond0: (slave veth1): Releasing backup interface
[  852.558698][  T300] bond0: (slave veth0): Releasing backup interface
[  852.929689][  T300] bond0 (unregistering): Released all slaves