[ 2023.876067] br0: port 1(dummy0) entered blocking state
[ 2023.876116] br0: port 1(dummy0) entered disabled state
[ 2023.876154] dummy0: entered allmulticast mode
[ 2023.876216] dummy0: entered promiscuous mode
[ 2023.879713] br0: port 1(dummy0) entered blocking state
[ 2023.879784] br0: port 1(dummy0) entered forwarding state
[ 2024.142209] dummy0: left allmulticast mode
[ 2024.142250] dummy0: left promiscuous mode
[ 2024.142281] br0: port 1(dummy0) entered disabled state