[ 2245.235685][T23755] br0: port 1(dummy0) entered blocking state
[ 2245.235919][T23755] br0: port 1(dummy0) entered disabled state
[ 2245.236136][T23755] dummy0: entered allmulticast mode
[ 2245.237075][T23755] dummy0: entered promiscuous mode
[ 2245.262079][T23756] br0: port 1(dummy0) entered blocking state
[ 2245.262266][T23756] br0: port 1(dummy0) entered forwarding state
[ 2247.291956][   T71] dummy0: left allmulticast mode
[ 2247.292158][   T71] dummy0: left promiscuous mode
[ 2247.292388][   T71] br0: port 1(dummy0) entered disabled state