[ 1851.984569][T32259] br0: port 1(dummy0) entered blocking state
[ 1851.984779][T32259] br0: port 1(dummy0) entered disabled state
[ 1851.984939][T32259] dummy0: entered allmulticast mode
[ 1851.985792][T32259] dummy0: entered promiscuous mode
[ 1852.008776][T32260] br0: port 1(dummy0) entered blocking state
[ 1852.008953][T32260] br0: port 1(dummy0) entered forwarding state
[ 1853.884602][   T12] dummy0: left allmulticast mode
[ 1853.884803][   T12] dummy0: left promiscuous mode
[ 1853.885021][   T12] br0: port 1(dummy0) entered disabled state