[ 2207.561009][T31810] br0: port 1(dummy0) entered blocking state
[ 2207.561335][T31810] br0: port 1(dummy0) entered disabled state
[ 2207.561635][T31810] dummy0: entered allmulticast mode
[ 2207.562679][T31810] dummy0: entered promiscuous mode
[ 2207.599769][T31811] br0: port 1(dummy0) entered blocking state
[ 2207.600132][T31811] br0: port 1(dummy0) entered forwarding state
[ 2210.160329][   T12] dummy0: left allmulticast mode
[ 2210.161147][   T12] dummy0: left promiscuous mode
[ 2210.161490][   T12] br0: port 1(dummy0) entered disabled state