[ 2166.083798][T29852] br0: port 1(dummy0) entered blocking state
[ 2166.083987][T29852] br0: port 1(dummy0) entered disabled state
[ 2166.084144][T29852] dummy0: entered allmulticast mode
[ 2166.085011][T29852] dummy0: entered promiscuous mode
[ 2166.115071][T29853] br0: port 1(dummy0) entered blocking state
[ 2166.115505][T29853] br0: port 1(dummy0) entered forwarding state
[ 2168.078842][   T12] dummy0: left allmulticast mode
[ 2168.079661][   T12] dummy0: left promiscuous mode
[ 2168.079899][   T12] br0: port 1(dummy0) entered disabled state