[ 1808.895165] br0: port 1(dummy0) entered blocking state
[ 1808.895212] br0: port 1(dummy0) entered disabled state
[ 1808.895248] dummy0: entered allmulticast mode
[ 1808.895307] dummy0: entered promiscuous mode
[ 1808.899112] br0: port 1(dummy0) entered blocking state
[ 1808.899177] br0: port 1(dummy0) entered forwarding state
[ 1809.163891] dummy0: left allmulticast mode
[ 1809.163960] dummy0: left promiscuous mode
[ 1809.164060] br0: port 1(dummy0) entered disabled state