[ 1677.457183] br0: port 1(dummy0) entered blocking state
[ 1677.457252] br0: port 1(dummy0) entered disabled state
[ 1677.457325] dummy0: entered allmulticast mode
[ 1677.457419] dummy0: entered promiscuous mode
[ 1677.460310] br0: port 1(dummy0) entered blocking state
[ 1677.460373] br0: port 1(dummy0) entered forwarding state
[ 1677.646702] dummy0: left allmulticast mode
[ 1677.646743] dummy0: left promiscuous mode
[ 1677.646773] br0: port 1(dummy0) entered disabled state