[ 1960.407379][T30529] br0: port 1(dummy0) entered blocking state
[ 1960.407586][T30529] br0: port 1(dummy0) entered disabled state
[ 1960.407758][T30529] dummy0: entered allmulticast mode
[ 1960.408815][T30529] dummy0: entered promiscuous mode
[ 1960.441730][T30530] br0: port 1(dummy0) entered blocking state
[ 1960.441927][T30530] br0: port 1(dummy0) entered forwarding state
[ 1962.489168][   T12] dummy0: left allmulticast mode
[ 1962.489347][   T12] dummy0: left promiscuous mode
[ 1962.489560][   T12] br0: port 1(dummy0) entered disabled state