[ 2193.190004][T24229] br0: port 1(dummy0) entered blocking state
[ 2193.190246][T24229] br0: port 1(dummy0) entered disabled state
[ 2193.190461][T24229] dummy0: entered allmulticast mode
[ 2193.191889][T24229] dummy0: entered promiscuous mode
[ 2193.223187][T24230] br0: port 1(dummy0) entered blocking state
[ 2193.223427][T24230] br0: port 1(dummy0) entered forwarding state
[ 2195.484293][   T12] dummy0: left allmulticast mode
[ 2195.484951][   T12] dummy0: left promiscuous mode
[ 2195.485450][   T12] br0: port 1(dummy0) entered disabled state