[ 1861.635208] br0: port 1(dummy0) entered blocking state
[ 1861.635245] br0: port 1(dummy0) entered disabled state
[ 1861.635282] dummy0: entered allmulticast mode
[ 1861.635334] dummy0: entered promiscuous mode
[ 1861.638748] br0: port 1(dummy0) entered blocking state
[ 1861.638780] br0: port 1(dummy0) entered forwarding state
[ 1861.896419] dummy0: left allmulticast mode
[ 1861.896450] dummy0: left promiscuous mode
[ 1861.896480] br0: port 1(dummy0) entered disabled state