[ 2126.177249][T20348] br0: port 1(dummy0) entered blocking state
[ 2126.177919][T20348] br0: port 1(dummy0) entered disabled state
[ 2126.178128][T20348] dummy0: entered allmulticast mode
[ 2126.179066][T20348] dummy0: entered promiscuous mode
[ 2126.202112][T20349] br0: port 1(dummy0) entered blocking state
[ 2126.202746][T20349] br0: port 1(dummy0) entered forwarding state
[ 2128.437767][   T70] dummy0: left allmulticast mode
[ 2128.438728][   T70] dummy0: left promiscuous mode
[ 2128.438987][   T70] br0: port 1(dummy0) entered disabled state