[ 1885.813139] br0: port 1(dummy0) entered blocking state
[ 1885.813210] br0: port 1(dummy0) entered disabled state
[ 1885.813276] dummy0: entered allmulticast mode
[ 1885.813357] dummy0: entered promiscuous mode
[ 1885.816557] br0: port 1(dummy0) entered blocking state
[ 1885.816586] br0: port 1(dummy0) entered forwarding state
[ 1886.059269] dummy0: left allmulticast mode
[ 1886.059316] dummy0: left promiscuous mode
[ 1886.059349] br0: port 1(dummy0) entered disabled state