[ 2179.962885][T22833] br0: port 1(dummy0) entered blocking state
[ 2179.963149][T22833] br0: port 1(dummy0) entered disabled state
[ 2179.963361][T22833] dummy0: entered allmulticast mode
[ 2179.964306][T22833] dummy0: entered promiscuous mode
[ 2179.987188][T22834] br0: port 1(dummy0) entered blocking state
[ 2179.987489][T22834] br0: port 1(dummy0) entered forwarding state
[ 2181.941689][   T12] dummy0: left allmulticast mode
[ 2181.942723][   T12] dummy0: left promiscuous mode
[ 2181.942963][   T12] br0: port 1(dummy0) entered disabled state