[ 1854.438808] br0: port 1(dummy0) entered blocking state
[ 1854.438848] br0: port 1(dummy0) entered disabled state
[ 1854.438896] dummy0: entered allmulticast mode
[ 1854.438945] dummy0: entered promiscuous mode
[ 1854.442559] br0: port 1(dummy0) entered blocking state
[ 1854.442621] br0: port 1(dummy0) entered forwarding state
[ 1854.692191] dummy0: left allmulticast mode
[ 1854.692259] dummy0: left promiscuous mode
[ 1854.692355] br0: port 1(dummy0) entered disabled state