[ 2303.024069][T15588] br0: port 1(dummy0) entered blocking state
[ 2303.024414][T15588] br0: port 1(dummy0) entered disabled state
[ 2303.024779][T15588] dummy0: entered allmulticast mode
[ 2303.025848][T15588] dummy0: entered promiscuous mode
[ 2303.052852][T15589] br0: port 1(dummy0) entered blocking state
[ 2303.053177][T15589] br0: port 1(dummy0) entered forwarding state
[ 2305.447529][   T12] dummy0: left allmulticast mode
[ 2305.448488][   T12] dummy0: left promiscuous mode
[ 2305.448820][   T12] br0: port 1(dummy0) entered disabled state