[  872.011410][ T9520] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  872.096798][ T9521] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  872.205816][ T9522] br0: port 1(veth0) entered blocking state
[  872.206198][ T9522] br0: port 1(veth0) entered disabled state
[  872.206519][ T9522] veth0: entered allmulticast mode
[  872.207978][ T9522] veth0: entered promiscuous mode
[  872.332190][ T9523] br0: port 2(veth1) entered blocking state
[  872.332721][ T9523] br0: port 2(veth1) entered disabled state
[  872.333506][ T9523] veth1: entered allmulticast mode
[  872.334915][ T9523] veth1: entered promiscuous mode
[  872.717863][ T8856] br0: port 1(veth0) entered blocking state
[  872.718226][ T8856] br0: port 1(veth0) entered forwarding state
[  872.719332][ T8856] br0: port 2(veth1) entered blocking state
[  872.719581][ T8856] br0: port 2(veth1) entered forwarding state
[  873.996697][ T8724] bond0: (slave veth1): link status definitely up
[  873.997152][ T8724] bond0: (slave veth1): making interface the new active one
[  873.998390][ T8724] bond0: active interface up!
[  874.438359][   T66] veth1: left allmulticast mode
[  874.438649][   T66] veth1: left promiscuous mode
[  874.438983][   T66] br0: port 2(veth1) entered disabled state
[  874.441726][   T66] veth0: left allmulticast mode
[  874.442000][   T66] veth0: left promiscuous mode
[  874.442447][   T66] br0: port 1(veth0) entered disabled state
[  874.615878][   T66] bond0: (slave veth1): Releasing backup interface
[  874.827992][   T66] bond0: (slave veth0): Releasing backup interface
[  875.197679][   T66] bond0 (unregistering): Released all slaves