[ 1792.915173] br0: port 1(dummy0) entered blocking state
[ 1792.915226] br0: port 1(dummy0) entered disabled state
[ 1792.915259] dummy0: entered allmulticast mode
[ 1792.915308] dummy0: entered promiscuous mode
[ 1792.918905] br0: port 1(dummy0) entered blocking state
[ 1792.918966] br0: port 1(dummy0) entered forwarding state
[ 1793.196026] dummy0: left allmulticast mode
[ 1793.196068] dummy0: left promiscuous mode
[ 1793.196127] br0: port 1(dummy0) entered disabled state