[ 2114.122854][ T8633] br0: port 1(dummy0) entered blocking state
[ 2114.123077][ T8633] br0: port 1(dummy0) entered disabled state
[ 2114.123294][ T8633] dummy0: entered allmulticast mode
[ 2114.124238][ T8633] dummy0: entered promiscuous mode
[ 2114.154025][ T8634] br0: port 1(dummy0) entered blocking state
[ 2114.154207][ T8634] br0: port 1(dummy0) entered forwarding state
[ 2116.409276][   T12] dummy0: left allmulticast mode
[ 2116.409901][   T12] dummy0: left promiscuous mode
[ 2116.410138][   T12] br0: port 1(dummy0) entered disabled state