[ 1691.095554] br0: port 1(dummy0) entered blocking state
[ 1691.095639] br0: port 1(dummy0) entered disabled state
[ 1691.095711] dummy0: entered allmulticast mode
[ 1691.095802] dummy0: entered promiscuous mode
[ 1691.099024] br0: port 1(dummy0) entered blocking state
[ 1691.099064] br0: port 1(dummy0) entered forwarding state
[ 1691.296721] dummy0: left allmulticast mode
[ 1691.296763] dummy0: left promiscuous mode
[ 1691.296790] br0: port 1(dummy0) entered disabled state