[ 1814.182274] br0: port 1(dummy0) entered blocking state
[ 1814.182349] br0: port 1(dummy0) entered disabled state
[ 1814.182418] dummy0: entered allmulticast mode
[ 1814.182499] dummy0: entered promiscuous mode
[ 1814.185284] br0: port 1(dummy0) entered blocking state
[ 1814.185313] br0: port 1(dummy0) entered forwarding state
[ 1814.372923] dummy0: left allmulticast mode
[ 1814.372950] dummy0: left promiscuous mode
[ 1814.372986] br0: port 1(dummy0) entered disabled state