[ 1829.905073] br0: port 1(dummy0) entered blocking state
[ 1829.905155] br0: port 1(dummy0) entered disabled state
[ 1829.905223] dummy0: entered allmulticast mode
[ 1829.905314] dummy0: entered promiscuous mode
[ 1829.908616] br0: port 1(dummy0) entered blocking state
[ 1829.908649] br0: port 1(dummy0) entered forwarding state
[ 1830.132963] dummy0: left allmulticast mode
[ 1830.132993] dummy0: left promiscuous mode
[ 1830.133025] br0: port 1(dummy0) entered disabled state