[ 1779.941544] br0: port 1(dummy0) entered blocking state
[ 1779.941584] br0: port 1(dummy0) entered disabled state
[ 1779.941621] dummy0: entered allmulticast mode
[ 1779.941672] dummy0: entered promiscuous mode
[ 1779.945287] br0: port 1(dummy0) entered blocking state
[ 1779.945350] br0: port 1(dummy0) entered forwarding state
[ 1780.209668] dummy0: left allmulticast mode
[ 1780.209696] dummy0: left promiscuous mode
[ 1780.209722] br0: port 1(dummy0) entered disabled state