[ 1729.547044] br0: port 1(dummy0) entered blocking state
[ 1729.547102] br0: port 1(dummy0) entered disabled state
[ 1729.547157] dummy0: entered allmulticast mode
[ 1729.547229] dummy0: entered promiscuous mode
[ 1729.550722] br0: port 1(dummy0) entered blocking state
[ 1729.550748] br0: port 1(dummy0) entered forwarding state
[ 1729.793117] dummy0: left allmulticast mode
[ 1729.793143] dummy0: left promiscuous mode
[ 1729.793165] br0: port 1(dummy0) entered disabled state