[ 1741.847054] br0: port 1(dummy0) entered blocking state
[ 1741.847104] br0: port 1(dummy0) entered disabled state
[ 1741.847139] dummy0: entered allmulticast mode
[ 1741.847195] dummy0: entered promiscuous mode
[ 1741.849620] br0: port 1(dummy0) entered blocking state
[ 1741.849657] br0: port 1(dummy0) entered forwarding state
[ 1742.025752] dummy0: left allmulticast mode
[ 1742.025791] dummy0: left promiscuous mode
[ 1742.025816] br0: port 1(dummy0) entered disabled state