[ 2021.947857][  T372] br0: port 1(dummy0) entered blocking state
[ 2021.948083][  T372] br0: port 1(dummy0) entered disabled state
[ 2021.948298][  T372] dummy0: entered allmulticast mode
[ 2021.949231][  T372] dummy0: entered promiscuous mode
[ 2021.972704][  T373] br0: port 1(dummy0) entered blocking state
[ 2021.972956][  T373] br0: port 1(dummy0) entered forwarding state
[ 2023.983728][   T70] dummy0: left allmulticast mode
[ 2023.984363][   T70] dummy0: left promiscuous mode
[ 2023.984608][   T70] br0: port 1(dummy0) entered disabled state