[ 1847.742532] br0: port 1(dummy0) entered blocking state
[ 1847.742568] br0: port 1(dummy0) entered disabled state
[ 1847.742602] dummy0: entered allmulticast mode
[ 1847.742655] dummy0: entered promiscuous mode
[ 1847.745447] br0: port 1(dummy0) entered blocking state
[ 1847.745510] br0: port 1(dummy0) entered forwarding state
[ 1847.935282] dummy0: left allmulticast mode
[ 1847.935311] dummy0: left promiscuous mode
[ 1847.935341] br0: port 1(dummy0) entered disabled state