[ 2157.809208][T14914] br0: port 1(dummy0) entered blocking state
[ 2157.809397][T14914] br0: port 1(dummy0) entered disabled state
[ 2157.809558][T14914] dummy0: entered allmulticast mode
[ 2157.810881][T14914] dummy0: entered promiscuous mode
[ 2157.841085][T14915] br0: port 1(dummy0) entered blocking state
[ 2157.841317][T14915] br0: port 1(dummy0) entered forwarding state
[ 2159.897790][   T12] dummy0: left allmulticast mode
[ 2159.898455][   T12] dummy0: left promiscuous mode
[ 2159.899006][   T12] br0: port 1(dummy0) entered disabled state