[ 1906.482987] br0: port 1(dummy0) entered blocking state
[ 1906.483068] br0: port 1(dummy0) entered disabled state
[ 1906.483137] dummy0: entered allmulticast mode
[ 1906.483230] dummy0: entered promiscuous mode
[ 1906.486846] br0: port 1(dummy0) entered blocking state
[ 1906.486896] br0: port 1(dummy0) entered forwarding state
[ 1906.762484] dummy0: left allmulticast mode
[ 1906.762559] dummy0: left promiscuous mode
[ 1906.762623] br0: port 1(dummy0) entered disabled state