[  851.237697][ T9446] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  851.343592][ T9447] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  851.414547][ T9448] br0: port 1(veth0) entered blocking state
[  851.414891][ T9448] br0: port 1(veth0) entered disabled state
[  851.415166][ T9448] veth0: entered allmulticast mode
[  851.416751][ T9448] veth0: entered promiscuous mode
[  851.521708][ T9449] br0: port 2(veth1) entered blocking state
[  851.522149][ T9449] br0: port 2(veth1) entered disabled state
[  851.522554][ T9449] veth1: entered allmulticast mode
[  851.523995][ T9449] veth1: entered promiscuous mode
[  852.068737][   T37] br0: port 1(veth0) entered blocking state
[  852.069101][   T37] br0: port 1(veth0) entered forwarding state
[  852.070181][   T37] br0: port 2(veth1) entered blocking state
[  852.070450][   T37] br0: port 2(veth1) entered forwarding state
[  853.188594][   T69] bond0: (slave veth1): link status definitely up
[  853.189015][   T69] bond0: (slave veth1): making interface the new active one
[  853.190393][   T69] bond0: active interface up!
[  853.637883][ T8727] veth1: left allmulticast mode
[  853.638176][ T8727] veth1: left promiscuous mode
[  853.638511][ T8727] br0: port 2(veth1) entered disabled state
[  853.640623][ T8727] veth0: left allmulticast mode
[  853.640842][ T8727] veth0: left promiscuous mode
[  853.641165][ T8727] br0: port 1(veth0) entered disabled state
[  853.790141][ T8727] bond0: (slave veth1): Releasing backup interface
[  853.938477][ T8727] bond0: (slave veth0): Releasing backup interface
[  854.298080][ T8727] bond0 (unregistering): Released all slaves