[ 1945.981560][T22941] br0: port 1(dummy0) entered blocking state
[ 1945.981805][T22941] br0: port 1(dummy0) entered disabled state
[ 1945.982043][T22941] dummy0: entered allmulticast mode
[ 1945.983786][T22941] dummy0: entered promiscuous mode
[ 1946.006794][T22942] br0: port 1(dummy0) entered blocking state
[ 1946.007108][T22942] br0: port 1(dummy0) entered forwarding state
[ 1948.055833][   T12] dummy0: left allmulticast mode
[ 1948.056132][   T12] dummy0: left promiscuous mode
[ 1948.056350][   T12] br0: port 1(dummy0) entered disabled state