[ 1727.955778] br0: port 1(dummy0) entered blocking state
[ 1727.955823] br0: port 1(dummy0) entered disabled state
[ 1727.955863] dummy0: entered allmulticast mode
[ 1727.955920] dummy0: entered promiscuous mode
[ 1727.958866] br0: port 1(dummy0) entered blocking state
[ 1727.958935] br0: port 1(dummy0) entered forwarding state
[ 1728.151090] dummy0: left allmulticast mode
[ 1728.151131] dummy0: left promiscuous mode
[ 1728.151162] br0: port 1(dummy0) entered disabled state