[ 1794.159166] br0: port 1(dummy0) entered blocking state
[ 1794.159253] br0: port 1(dummy0) entered disabled state
[ 1794.159327] dummy0: entered allmulticast mode
[ 1794.159418] dummy0: entered promiscuous mode
[ 1794.163225] br0: port 1(dummy0) entered blocking state
[ 1794.163267] br0: port 1(dummy0) entered forwarding state
[ 1794.441342] dummy0: left allmulticast mode
[ 1794.441432] dummy0: left promiscuous mode
[ 1794.441499] br0: port 1(dummy0) entered disabled state