[ 2342.836519][ T4066] br0: port 1(dummy0) entered blocking state
[ 2342.836752][ T4066] br0: port 1(dummy0) entered disabled state
[ 2342.836964][ T4066] dummy0: entered allmulticast mode
[ 2342.839162][ T4066] dummy0: entered promiscuous mode
[ 2342.866568][ T4067] br0: port 1(dummy0) entered blocking state
[ 2342.866836][ T4067] br0: port 1(dummy0) entered forwarding state
[ 2345.060001][   T12] dummy0: left allmulticast mode
[ 2345.060966][   T12] dummy0: left promiscuous mode
[ 2345.061213][   T12] br0: port 1(dummy0) entered disabled state