[ 2371.479949][T31704] br0: port 1(dummy0) entered blocking state
[ 2371.480472][T31704] br0: port 1(dummy0) entered disabled state
[ 2371.480981][T31704] dummy0: entered allmulticast mode
[ 2371.482783][T31704] dummy0: entered promiscuous mode
[ 2371.535607][T31705] br0: port 1(dummy0) entered blocking state
[ 2371.536570][T31705] br0: port 1(dummy0) entered forwarding state
[ 2374.441074][   T12] dummy0: left allmulticast mode
[ 2374.441849][   T12] dummy0: left promiscuous mode
[ 2374.442835][   T12] br0: port 1(dummy0) entered disabled state