[ 1776.163378] br0: port 1(dummy0) entered blocking state
[ 1776.163448] br0: port 1(dummy0) entered disabled state
[ 1776.163514] dummy0: entered allmulticast mode
[ 1776.163604] dummy0: entered promiscuous mode
[ 1776.166344] br0: port 1(dummy0) entered blocking state
[ 1776.166379] br0: port 1(dummy0) entered forwarding state
[ 1776.347070] dummy0: left allmulticast mode
[ 1776.347106] dummy0: left promiscuous mode
[ 1776.347163] br0: port 1(dummy0) entered disabled state