[ 1792.082573] br0: port 1(dummy0) entered blocking state
[ 1792.082642] br0: port 1(dummy0) entered disabled state
[ 1792.082710] dummy0: entered allmulticast mode
[ 1792.082790] dummy0: entered promiscuous mode
[ 1792.086238] br0: port 1(dummy0) entered blocking state
[ 1792.086271] br0: port 1(dummy0) entered forwarding state
[ 1792.344904] dummy0: left allmulticast mode
[ 1792.344940] dummy0: left promiscuous mode
[ 1792.344970] br0: port 1(dummy0) entered disabled state