[ 1713.811798] br0: port 1(dummy0) entered blocking state
[ 1713.811873] br0: port 1(dummy0) entered disabled state
[ 1713.811941] dummy0: entered allmulticast mode
[ 1713.812027] dummy0: entered promiscuous mode
[ 1713.815355] br0: port 1(dummy0) entered blocking state
[ 1713.815390] br0: port 1(dummy0) entered forwarding state
[ 1714.025032] dummy0: left allmulticast mode
[ 1714.025073] dummy0: left promiscuous mode
[ 1714.025135] br0: port 1(dummy0) entered disabled state