[ 2308.381380][T11868] br0: port 1(dummy0) entered blocking state
[ 2308.381688][T11868] br0: port 1(dummy0) entered disabled state
[ 2308.381961][T11868] dummy0: entered allmulticast mode
[ 2308.382982][T11868] dummy0: entered promiscuous mode
[ 2308.415069][T11869] br0: port 1(dummy0) entered blocking state
[ 2308.415696][T11869] br0: port 1(dummy0) entered forwarding state
[ 2310.775641][   T12] dummy0: left allmulticast mode
[ 2310.776476][   T12] dummy0: left promiscuous mode
[ 2310.776816][   T12] br0: port 1(dummy0) entered disabled state