[ 1766.903608] br0: port 1(dummy0) entered blocking state
[ 1766.903650] br0: port 1(dummy0) entered disabled state
[ 1766.903688] dummy0: entered allmulticast mode
[ 1766.903743] dummy0: entered promiscuous mode
[ 1766.907487] br0: port 1(dummy0) entered blocking state
[ 1766.907522] br0: port 1(dummy0) entered forwarding state
[ 1767.169205] dummy0: left allmulticast mode
[ 1767.169278] dummy0: left promiscuous mode
[ 1767.169340] br0: port 1(dummy0) entered disabled state