[ 1916.326044][T12163] br0: port 1(dummy0) entered blocking state
[ 1916.326243][T12163] br0: port 1(dummy0) entered disabled state
[ 1916.326403][T12163] dummy0: entered allmulticast mode
[ 1916.327578][T12163] dummy0: entered promiscuous mode
[ 1916.357936][T12164] br0: port 1(dummy0) entered blocking state
[ 1916.358175][T12164] br0: port 1(dummy0) entered forwarding state
[ 1918.313590][   T12] dummy0: left allmulticast mode
[ 1918.314626][   T12] dummy0: left promiscuous mode
[ 1918.314865][   T12] br0: port 1(dummy0) entered disabled state