[ 1545.384289] br0: port 1(dummy0) entered blocking state
[ 1545.384331] br0: port 1(dummy0) entered disabled state
[ 1545.384358] dummy0: entered allmulticast mode
[ 1545.384400] dummy0: entered promiscuous mode
[ 1545.386819] br0: port 1(dummy0) entered blocking state
[ 1545.386876] br0: port 1(dummy0) entered forwarding state
[ 1545.549963] dummy0: left allmulticast mode
[ 1545.549990] dummy0: left promiscuous mode
[ 1545.550016] br0: port 1(dummy0) entered disabled state