[ 2147.128451][T29354] br0: port 1(dummy0) entered blocking state
[ 2147.128665][T29354] br0: port 1(dummy0) entered disabled state
[ 2147.128840][T29354] dummy0: entered allmulticast mode
[ 2147.130299][T29354] dummy0: entered promiscuous mode
[ 2147.158369][T29355] br0: port 1(dummy0) entered blocking state
[ 2147.158632][T29355] br0: port 1(dummy0) entered forwarding state
[ 2149.194420][   T12] dummy0: left allmulticast mode
[ 2149.194737][   T12] dummy0: left promiscuous mode
[ 2149.194980][   T12] br0: port 1(dummy0) entered disabled state