[ 2138.882026][T10784] br0: port 1(dummy0) entered blocking state
[ 2138.882217][T10784] br0: port 1(dummy0) entered disabled state
[ 2138.882382][T10784] dummy0: entered allmulticast mode
[ 2138.883532][T10784] dummy0: entered promiscuous mode
[ 2138.915269][T10785] br0: port 1(dummy0) entered blocking state
[ 2138.915524][T10785] br0: port 1(dummy0) entered forwarding state
[ 2141.199478][   T12] dummy0: left allmulticast mode
[ 2141.200187][   T12] dummy0: left promiscuous mode
[ 2141.200429][   T12] br0: port 1(dummy0) entered disabled state