[ 2177.562193][ T6259] br0: port 1(dummy0) entered blocking state
[ 2177.562375][ T6259] br0: port 1(dummy0) entered disabled state
[ 2177.562539][ T6259] dummy0: entered allmulticast mode
[ 2177.563428][ T6259] dummy0: entered promiscuous mode
[ 2177.597057][ T6260] br0: port 1(dummy0) entered blocking state
[ 2177.597238][ T6260] br0: port 1(dummy0) entered forwarding state
[ 2179.622460][   T68] dummy0: left allmulticast mode
[ 2179.623070][   T68] dummy0: left promiscuous mode
[ 2179.623301][   T68] br0: port 1(dummy0) entered disabled state