[ 2224.865258][T31036] br0: port 1(dummy0) entered blocking state
[ 2224.865584][T31036] br0: port 1(dummy0) entered disabled state
[ 2224.865869][T31036] dummy0: entered allmulticast mode
[ 2224.866891][T31036] dummy0: entered promiscuous mode
[ 2224.893593][T31037] br0: port 1(dummy0) entered blocking state
[ 2224.893940][T31037] br0: port 1(dummy0) entered forwarding state
[ 2227.316703][   T12] dummy0: left allmulticast mode
[ 2227.317015][   T12] dummy0: left promiscuous mode
[ 2227.317428][   T12] br0: port 1(dummy0) entered disabled state