[ 2048.671211][T15742] br0: port 1(dummy0) entered blocking state
[ 2048.671482][T15742] br0: port 1(dummy0) entered disabled state
[ 2048.671715][T15742] dummy0: entered allmulticast mode
[ 2048.672703][T15742] dummy0: entered promiscuous mode
[ 2048.707652][T15743] br0: port 1(dummy0) entered blocking state
[ 2048.708333][T15743] br0: port 1(dummy0) entered forwarding state
[ 2050.634481][   T12] dummy0: left allmulticast mode
[ 2050.634641][   T12] dummy0: left promiscuous mode
[ 2050.634857][   T12] br0: port 1(dummy0) entered disabled state