[ 2073.882272][T16305] br0: port 1(dummy0) entered blocking state
[ 2073.882463][T16305] br0: port 1(dummy0) entered disabled state
[ 2073.882629][T16305] dummy0: entered allmulticast mode
[ 2073.884365][T16305] dummy0: entered promiscuous mode
[ 2073.913740][T16306] br0: port 1(dummy0) entered blocking state
[ 2073.914085][T16306] br0: port 1(dummy0) entered forwarding state
[ 2075.786315][   T12] dummy0: left allmulticast mode
[ 2075.787242][   T12] dummy0: left promiscuous mode
[ 2075.787523][   T12] br0: port 1(dummy0) entered disabled state