[ 2071.441275][T27758] br0: port 1(dummy0) entered blocking state
[ 2071.441473][T27758] br0: port 1(dummy0) entered disabled state
[ 2071.441640][T27758] dummy0: entered allmulticast mode
[ 2071.442518][T27758] dummy0: entered promiscuous mode
[ 2071.470280][T27759] br0: port 1(dummy0) entered blocking state
[ 2071.470503][T27759] br0: port 1(dummy0) entered forwarding state
[ 2073.833717][   T12] dummy0: left allmulticast mode
[ 2073.833912][   T12] dummy0: left promiscuous mode
[ 2073.834146][   T12] br0: port 1(dummy0) entered disabled state