[ 2019.704448][  T994] br0: port 1(dummy0) entered blocking state
[ 2019.704761][  T994] br0: port 1(dummy0) entered disabled state
[ 2019.705030][  T994] dummy0: entered allmulticast mode
[ 2019.706780][  T994] dummy0: entered promiscuous mode
[ 2019.733767][  T995] br0: port 1(dummy0) entered blocking state
[ 2019.734296][  T995] br0: port 1(dummy0) entered forwarding state
[ 2022.112813][   T12] dummy0: left allmulticast mode
[ 2022.113523][   T12] dummy0: left promiscuous mode
[ 2022.113812][   T12] br0: port 1(dummy0) entered disabled state