[ 2177.278292][T12269] br0: port 1(dummy0) entered blocking state
[ 2177.278857][T12269] br0: port 1(dummy0) entered disabled state
[ 2177.279033][T12269] dummy0: entered allmulticast mode
[ 2177.280073][T12269] dummy0: entered promiscuous mode
[ 2177.302551][T12270] br0: port 1(dummy0) entered blocking state
[ 2177.303096][T12270] br0: port 1(dummy0) entered forwarding state
[ 2179.320529][   T12] dummy0: left allmulticast mode
[ 2179.320832][   T12] dummy0: left promiscuous mode
[ 2179.321049][   T12] br0: port 1(dummy0) entered disabled state