[ 1790.100457] br0: port 1(dummy0) entered blocking state
[ 1790.100525] br0: port 1(dummy0) entered disabled state
[ 1790.100602] dummy0: entered allmulticast mode
[ 1790.100689] dummy0: entered promiscuous mode
[ 1790.103465] br0: port 1(dummy0) entered blocking state
[ 1790.103508] br0: port 1(dummy0) entered forwarding state
[ 1790.293240] dummy0: left allmulticast mode
[ 1790.293268] dummy0: left promiscuous mode
[ 1790.293300] br0: port 1(dummy0) entered disabled state