[ 2255.274968][T24794] br0: port 1(dummy0) entered blocking state
[ 2255.275271][T24794] br0: port 1(dummy0) entered disabled state
[ 2255.275539][T24794] dummy0: entered allmulticast mode
[ 2255.276510][T24794] dummy0: entered promiscuous mode
[ 2255.308093][T24795] br0: port 1(dummy0) entered blocking state
[ 2255.308611][T24795] br0: port 1(dummy0) entered forwarding state
[ 2257.725754][   T12] dummy0: left allmulticast mode
[ 2257.726876][   T12] dummy0: left promiscuous mode
[ 2257.727265][   T12] br0: port 1(dummy0) entered disabled state