[ 1657.606440] br0: port 1(dummy0) entered blocking state
[ 1657.606518] br0: port 1(dummy0) entered disabled state
[ 1657.606589] dummy0: entered allmulticast mode
[ 1657.606678] dummy0: entered promiscuous mode
[ 1657.609954] br0: port 1(dummy0) entered blocking state
[ 1657.609988] br0: port 1(dummy0) entered forwarding state
[ 1657.825557] dummy0: left allmulticast mode
[ 1657.825642] dummy0: left promiscuous mode
[ 1657.825737] br0: port 1(dummy0) entered disabled state