[ 2066.275012][T30457] br0: port 1(dummy0) entered blocking state
[ 2066.275243][T30457] br0: port 1(dummy0) entered disabled state
[ 2066.275477][T30457] dummy0: entered allmulticast mode
[ 2066.276423][T30457] dummy0: entered promiscuous mode
[ 2066.305542][T30458] br0: port 1(dummy0) entered blocking state
[ 2066.305719][T30458] br0: port 1(dummy0) entered forwarding state
[ 2068.321347][   T12] dummy0: left allmulticast mode
[ 2068.321956][   T12] dummy0: left promiscuous mode
[ 2068.322190][   T12] br0: port 1(dummy0) entered disabled state