[ 1799.548898] br0: port 1(dummy0) entered blocking state
[ 1799.548970] br0: port 1(dummy0) entered disabled state
[ 1799.549046] dummy0: entered allmulticast mode
[ 1799.549138] dummy0: entered promiscuous mode
[ 1799.552746] br0: port 1(dummy0) entered blocking state
[ 1799.552780] br0: port 1(dummy0) entered forwarding state
[ 1799.822271] dummy0: left allmulticast mode
[ 1799.822311] dummy0: left promiscuous mode
[ 1799.822337] br0: port 1(dummy0) entered disabled state