[ 2350.205319][T13728] br0: port 1(dummy0) entered blocking state
[ 2350.205641][T13728] br0: port 1(dummy0) entered disabled state
[ 2350.205952][T13728] dummy0: entered allmulticast mode
[ 2350.206994][T13728] dummy0: entered promiscuous mode
[ 2350.238102][T13729] br0: port 1(dummy0) entered blocking state
[ 2350.238419][T13729] br0: port 1(dummy0) entered forwarding state
[ 2352.822908][   T12] dummy0: left allmulticast mode
[ 2352.823222][   T12] dummy0: left promiscuous mode
[ 2352.824263][   T12] br0: port 1(dummy0) entered disabled state