[ 2216.785272][T25477] br0: port 1(dummy0) entered blocking state
[ 2216.785519][T25477] br0: port 1(dummy0) entered disabled state
[ 2216.785747][T25477] dummy0: entered allmulticast mode
[ 2216.786705][T25477] dummy0: entered promiscuous mode
[ 2216.813484][T25478] br0: port 1(dummy0) entered blocking state
[ 2216.813783][T25478] br0: port 1(dummy0) entered forwarding state
[ 2219.270012][   T12] dummy0: left allmulticast mode
[ 2219.270979][   T12] dummy0: left promiscuous mode
[ 2219.271280][   T12] br0: port 1(dummy0) entered disabled state