[ 1947.375574][T31704] br0: port 1(dummy0) entered blocking state
[ 1947.375769][T31704] br0: port 1(dummy0) entered disabled state
[ 1947.375943][T31704] dummy0: entered allmulticast mode
[ 1947.376931][T31704] dummy0: entered promiscuous mode
[ 1947.399520][T31705] br0: port 1(dummy0) entered blocking state
[ 1947.399762][T31705] br0: port 1(dummy0) entered forwarding state
[ 1949.372687][   T70] dummy0: left allmulticast mode
[ 1949.372981][   T70] dummy0: left promiscuous mode
[ 1949.373190][   T70] br0: port 1(dummy0) entered disabled state