[ 2022.003641][T19238] br0: port 1(dummy0) entered blocking state
[ 2022.003834][T19238] br0: port 1(dummy0) entered disabled state
[ 2022.003998][T19238] dummy0: entered allmulticast mode
[ 2022.004987][T19238] dummy0: entered promiscuous mode
[ 2022.028722][T19239] br0: port 1(dummy0) entered blocking state
[ 2022.029024][T19239] br0: port 1(dummy0) entered forwarding state
[ 2024.054757][   T69] dummy0: left allmulticast mode
[ 2024.055102][   T69] dummy0: left promiscuous mode
[ 2024.055333][   T69] br0: port 1(dummy0) entered disabled state