[ 2176.292149][T16456] br0: port 1(dummy0) entered blocking state
[ 2176.292444][T16456] br0: port 1(dummy0) entered disabled state
[ 2176.292708][T16456] dummy0: entered allmulticast mode
[ 2176.293686][T16456] dummy0: entered promiscuous mode
[ 2176.330353][T16457] br0: port 1(dummy0) entered blocking state
[ 2176.330648][T16457] br0: port 1(dummy0) entered forwarding state
[ 2178.690398][   T69] dummy0: left allmulticast mode
[ 2178.690753][   T69] dummy0: left promiscuous mode
[ 2178.691130][   T69] br0: port 1(dummy0) entered disabled state