[ 1977.399103][T23243] br0: port 1(dummy0) entered blocking state
[ 1977.399331][T23243] br0: port 1(dummy0) entered disabled state
[ 1977.399540][T23243] dummy0: entered allmulticast mode
[ 1977.400452][T23243] dummy0: entered promiscuous mode
[ 1977.424493][T23244] br0: port 1(dummy0) entered blocking state
[ 1977.424900][T23244] br0: port 1(dummy0) entered forwarding state
[ 1979.336105][   T12] dummy0: left allmulticast mode
[ 1979.336385][   T12] dummy0: left promiscuous mode
[ 1979.336581][   T12] br0: port 1(dummy0) entered disabled state