[ 2191.997268][T13082] br0: port 1(dummy0) entered blocking state
[ 2191.997792][T13082] br0: port 1(dummy0) entered disabled state
[ 2191.998300][T13082] dummy0: entered allmulticast mode
[ 2192.000693][T13082] dummy0: entered promiscuous mode
[ 2192.049268][T13083] br0: port 1(dummy0) entered blocking state
[ 2192.049800][T13083] br0: port 1(dummy0) entered forwarding state
[ 2194.822284][   T12] dummy0: left allmulticast mode
[ 2194.823493][   T12] dummy0: left promiscuous mode
[ 2194.824276][   T12] br0: port 1(dummy0) entered disabled state