[ 2089.801020][ T2948] br0: port 1(dummy0) entered blocking state
[ 2089.801213][ T2948] br0: port 1(dummy0) entered disabled state
[ 2089.801387][ T2948] dummy0: entered allmulticast mode
[ 2089.802343][ T2948] dummy0: entered promiscuous mode
[ 2089.830791][ T2949] br0: port 1(dummy0) entered blocking state
[ 2089.831077][ T2949] br0: port 1(dummy0) entered forwarding state
[ 2091.835285][   T12] dummy0: left allmulticast mode
[ 2091.836281][   T12] dummy0: left promiscuous mode
[ 2091.836610][   T12] br0: port 1(dummy0) entered disabled state