[  748.462794][ T8537] br1: port 1(veth1) entered blocking state
[  748.463168][ T8537] br1: port 1(veth1) entered disabled state
[  748.463547][ T8537] veth1: entered allmulticast mode
[  748.465216][ T8537] veth1: entered promiscuous mode
[  748.497844][ T4754] br1: port 1(veth1) entered blocking state
[  748.498182][ T4754] br1: port 1(veth1) entered forwarding state
[  759.707225][ T8640] br1: port 1(veth1) entered disabled state
[  759.740718][ T8641] veth1: left allmulticast mode
[  759.741034][ T8641] veth1: left promiscuous mode
[  759.741416][ T8641] br1: port 1(veth1) entered disabled state