[ 1714.263658] br0: port 1(dummy0) entered blocking state
[ 1714.263732] br0: port 1(dummy0) entered disabled state
[ 1714.263799] dummy0: entered allmulticast mode
[ 1714.263881] dummy0: entered promiscuous mode
[ 1714.266652] br0: port 1(dummy0) entered blocking state
[ 1714.266687] br0: port 1(dummy0) entered forwarding state
[ 1714.462393] dummy0: left allmulticast mode
[ 1714.462466] dummy0: left promiscuous mode
[ 1714.462527] br0: port 1(dummy0) entered disabled state