[ 2002.315805][T31575] br0: port 1(dummy0) entered blocking state
[ 2002.316034][T31575] br0: port 1(dummy0) entered disabled state
[ 2002.316273][T31575] dummy0: entered allmulticast mode
[ 2002.317297][T31575] dummy0: entered promiscuous mode
[ 2002.347077][T31576] br0: port 1(dummy0) entered blocking state
[ 2002.347520][T31576] br0: port 1(dummy0) entered forwarding state
[ 2004.304260][   T70] dummy0: left allmulticast mode
[ 2004.305374][   T70] dummy0: left promiscuous mode
[ 2004.305668][   T70] br0: port 1(dummy0) entered disabled state