[ 1777.526993] br0: port 1(dummy0) entered blocking state
[ 1777.527036] br0: port 1(dummy0) entered disabled state
[ 1777.527074] dummy0: entered allmulticast mode
[ 1777.527130] dummy0: entered promiscuous mode
[ 1777.530704] br0: port 1(dummy0) entered blocking state
[ 1777.530766] br0: port 1(dummy0) entered forwarding state
[ 1777.782162] dummy0: left allmulticast mode
[ 1777.782199] dummy0: left promiscuous mode
[ 1777.782230] br0: port 1(dummy0) entered disabled state