[ 2135.127283][T15323] br0: port 1(dummy0) entered blocking state
[ 2135.127460][T15323] br0: port 1(dummy0) entered disabled state
[ 2135.127627][T15323] dummy0: entered allmulticast mode
[ 2135.128547][T15323] dummy0: entered promiscuous mode
[ 2135.167803][T15324] br0: port 1(dummy0) entered blocking state
[ 2135.168011][T15324] br0: port 1(dummy0) entered forwarding state
[ 2137.412888][   T12] dummy0: left allmulticast mode
[ 2137.413588][   T12] dummy0: left promiscuous mode
[ 2137.414168][   T12] br0: port 1(dummy0) entered disabled state