[ 1766.998391] br0: port 1(dummy0) entered blocking state
[ 1766.998438] br0: port 1(dummy0) entered disabled state
[ 1766.998473] dummy0: entered allmulticast mode
[ 1766.998524] dummy0: entered promiscuous mode
[ 1767.001310] br0: port 1(dummy0) entered blocking state
[ 1767.001374] br0: port 1(dummy0) entered forwarding state
[ 1767.183022] dummy0: left allmulticast mode
[ 1767.183061] dummy0: left promiscuous mode
[ 1767.183095] br0: port 1(dummy0) entered disabled state