[ 2167.798503][T15648] br0: port 1(dummy0) entered blocking state
[ 2167.799239][T15648] br0: port 1(dummy0) entered disabled state
[ 2167.799529][T15648] dummy0: entered allmulticast mode
[ 2167.800966][T15648] dummy0: entered promiscuous mode
[ 2167.840213][T15649] br0: port 1(dummy0) entered blocking state
[ 2167.840489][T15649] br0: port 1(dummy0) entered forwarding state
[ 2171.236521][   T12] dummy0: left allmulticast mode
[ 2171.237410][   T12] dummy0: left promiscuous mode
[ 2171.238445][   T12] br0: port 1(dummy0) entered disabled state