[ 2445.165296][T31471] br0: port 1(dummy0) entered blocking state
[ 2445.165632][T31471] br0: port 1(dummy0) entered disabled state
[ 2445.165859][T31471] dummy0: entered allmulticast mode
[ 2445.166911][T31471] dummy0: entered promiscuous mode
[ 2445.192640][T31472] br0: port 1(dummy0) entered blocking state
[ 2445.192905][T31472] br0: port 1(dummy0) entered forwarding state
[ 2447.622608][   T12] dummy0: left allmulticast mode
[ 2447.623526][   T12] dummy0: left promiscuous mode
[ 2447.623879][   T12] br0: port 1(dummy0) entered disabled state