[ 2271.929695][T12127] br0: port 1(dummy0) entered blocking state
[ 2271.929916][T12127] br0: port 1(dummy0) entered disabled state
[ 2271.930139][T12127] dummy0: entered allmulticast mode
[ 2271.931672][T12127] dummy0: entered promiscuous mode
[ 2271.955368][T12128] br0: port 1(dummy0) entered blocking state
[ 2271.956023][T12128] br0: port 1(dummy0) entered forwarding state
[ 2274.198291][   T12] dummy0: left allmulticast mode
[ 2274.198696][   T12] dummy0: left promiscuous mode
[ 2274.198931][   T12] br0: port 1(dummy0) entered disabled state