[ 2398.331733] br0: port 1(dummy0) entered blocking state
[ 2398.332124] br0: port 1(dummy0) entered disabled state
[ 2398.332630] device dummy0 entered promiscuous mode
[ 2398.380283] br0: port 1(dummy0) entered blocking state
[ 2398.380671] br0: port 1(dummy0) entered forwarding state
[ 2398.551457] br0: port 1(dummy0) entered disabled state
[ 2398.621394] device dummy0 left promiscuous mode
[ 2398.621769] br0: port 1(dummy0) entered disabled state