[ 2238.656620][ T1853] br0: port 1(dummy0) entered blocking state
[ 2238.656816][ T1853] br0: port 1(dummy0) entered disabled state
[ 2238.656993][ T1853] dummy0: entered allmulticast mode
[ 2238.657894][ T1853] dummy0: entered promiscuous mode
[ 2238.687367][ T1854] br0: port 1(dummy0) entered blocking state
[ 2238.687591][ T1854] br0: port 1(dummy0) entered forwarding state
[ 2240.720983][   T12] dummy0: left allmulticast mode
[ 2240.721300][   T12] dummy0: left promiscuous mode
[ 2240.721512][   T12] br0: port 1(dummy0) entered disabled state